2019 Acura MDX

The subject 2019 Acura MDX model includes the tech package which adds several safety features that function through a windshield mounted camara/radar. The system has malfunctioned and none of the safety features are working. The dash displays the following messages: Collision Mitigation System Problem Adaptive Cruise Control Problem Lane Keeping Asist Problem Road Departure Mitigation System Problem automatic headlight system problem At the bottom of the dash, I see Brake System, Crash Warning and Lane Departure lights on as well. Acura is charging $2,319 to replace this unit in addition to a $270 diagnostic fee. This issue is widely reported as a significant issue in several model years for the MDX and should be part of a safety recall. The Acura technician acknowledged this issue is common. I should add this is the second major electronic issue with this MDX within the last several months. The prior issue was multiple system failure warnings that Acura determined were caused by a faulty wiring harness at a $1,604 cost, plus a $255 diagnostic fee. Please note I am the original owner of the vehicle and it has never been in a collision. Additionally, the system has recently mistakenly activated the brakes at very low speed and warned against collisions with other vehicles traveling in the opposite direction while on a curve.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

While driving, the vehicle experienced a sudden internal mechanical and electronic transmission failure. Without warning, the vehicle shifted itself directly into Park while navigating the busy intersection of [XXX] and [XXX]. This caused a complete loss of propulsion and left the vehicle entirely immobilized in the middle of a high-speed junction. The vehicle could not be moved, creating an immediate, severe highway safety hazard that required an emergency 911 police response to manage traffic and protect the vehicle from being rear-ended. The dealership scan tool later pulled diagnostic code P0730 (Incorrect Gear Ratio) along with multiple clutch performance failures (P07A4, P07A2, P07A8). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

On [XXX], while traveling at highway speeds on [XXX], the vehicle suffered a sudden, complete loss of engine propulsion. The vehicle rapidly decelerated, refused to respond to accelerator input, and forced itself into a dangerous "Limp Mode" in live traffic, creating an immediate highway safety hazard. Multiple warning messages illuminated on the dashboard. The vehicle was towed to Mile High Acura under Repair Order #[XXX]. Diagnostic testing pulled stored Code P0087 for Low Fuel Pressure at the Fuel Rail. An inline fuel pressure gauge confirmed that the low-side fuel pressure was rapidly fluctuating between 55 and 64 PSI at idle. The dealership escalated the data to the Acura Corporate Tech Line (Ref #[XXX]), which reviewed the vehicle's onboard snapshot data and officially determined a terminal defect in the low-pressure fuel pump assembly, mandating the replacement of the low-side pump and both fuel relays. Dealership service records confirm that this vehicle previously had a low-pressure fuel pump recall performed in 2021 under NHTSA Campaign Number 21V-215 (Acura Code CAI). The sudden failure of this replacement component matches the exact failure conditions detailed in the subsequent NHTSA Campaign Number 23V-858 (Acura Codes KGC/KGD). In that expanded campaign, American Honda Motor Co. openly admitted to federal regulators that the early replacement "service parts" distributed and installed during the 21V-215 window were manufactured with the exact same defective, swelling density impellers prone to subsequent deformation and complete failure. Despite their own corporate Tech Line explicitly confirming that the root cause of this dangerous highway power loss was the low-pressure fuel pump—the exact component of the 21V-215 and 23V-858 safety recall campaigns—Acura Client Relations denied 100% safety remedy coverage. Acura refused to provide the technical basis for their denial in writing. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Under normal driving conditions warning lights for "electric parking brake" and "emissions system problem" came on the dashboard and the 'brake' light began flashing. No change in performance. Auto parts store diagnostic indicated EVAP valve as the possible problem code, along with two other unrelated codes - none connected to brakes or emissions. The 12-volt battery tested strong. Drove another 100 miles with lights still on, but the 'brake' light would turn off after about 5 mins of highway driving/no braking. The next day the warning lights continued. After normal city driving I shut the car off, waited 30 seconds, pushed the start button twice (accessory mode) and held the brake pedal down while pulling up on the brake release button for 10 seconds. Started the car without any error messages.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

On 04/03/2026, 6:04 PM, Acura MDX 2019, Base, SH-AWD, at 105,254 miles on the odometer, posted U3000-49 control module internal electronic failure. The fault appears to be at the 36160-TYS-A02 camera assembly monocular results in a series of cascading errors on the dash with indicators on for LKAS (Lane Keeping Assist), ACC (Adaptive Cruise Control), CMBS (Collision Mitigation Brake System), brake and transmission warning lights that blink continuously. The sudden lost of safety system especially at highway speeds places extreme risk to occupants of vehicle and other drivers sharing the roadway. The current TSB 23-008 does not repair fault, origin of fault not software, but requires replacement of front camera assembly (36160-TYS-A02) and recalibration at owner expense. There appears to be a lot of 36160-TYS-A02 camera monocular that either have insufficient solder, cold solder, bad crimps or otherwise that over time results in failure.

Reported

Jun 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

When I was at 41,528 miles, May 18, the LKAS, ACC & RDMS errors all turned on at the same time. So those systems just stopped working randomly. When I restarted the car, all errors turned off but it turned on again after 10 days, May 28 with 91,966 miles. I brought it to the Acura dealership and they couldn't replicate it. I think this is an issue because one of the highlights of this car is safety but at random times, those safety systems suddenly stops working and the dealership couldn't do anything about it.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Clunking or Looseness in the Outer Tie Rod. The issue is related to TSB-B23-019 Bulletin. The exact same issue is occurring that has happened with years 2022-2023. I have had at the dealership to fix the issue and they never mentioned the outer tie rod cotter pin or castle nut loosening.

Reported

May 2026

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

I am reporting a recurring safety issue following the Acura rod bearing recall repair on my 2019 Acura MDX SH-AWD. The original recall resulted in catastrophic engine failure and Acura replaced the long block assembly. Since that repair, the vehicle has repeatedly failed and returned to the dealership multiple times for the same issue pattern. Symptoms include: * “Emissions System Problem” warning * SH-AWD, brake, and traction control warnings * strong raw gasoline odor * vehicle becoming undriveable/no-start Timeline: * Recall repair completed with long block replacement * Vehicle failed again the next day * Dealer repaired vehicle * Vehicle failed again about one month later * Dealer repaired vehicle again * Vehicle failed a third time about one week later during normal commuting The recurring failures are accompanied by a strong gasoline smell, creating concern about fire risk and vehicle safety. I regularly transport children in this vehicle and no longer have confidence in the safety or reliability of the recall repair. The dealership has continued repairing the vehicle and providing loaners, indicating the issue is related to the original recall repair, but the underlying problem has still not been resolved despite multiple repair attempts. I am submitting this report because the recall repair has not resulted in safe and reliable vehicle operation.

Reported

May 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2019 Acura MDX. The contact stated while driving at an undisclosed speed and depressing the accelerator pedal, the vehicle failed to accelerate as intended and to exceed 5 MPH. The vehicle was driven to the shoulder of the roadway. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The contact did not agree with the diagnosis. The contact stated that the failure was a known failure with the vehicle. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 72,692.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The drivers seat is lose and can be felt and heard making noise when driving, even at low speeds. It shifts back and forth upon acceleration and deceleration. Ive had a mechanic look at it and determine it is in fact shifting around while driving, which is extremely unsafe. Upon further research found that many othet Acura/Honda users have had the same issue especially in the MDX model mentioned here. Its even been reported by dealers in brand new, still in the showroom MDX. It is clearly not a wear and tear issue and needs a recall to be addressed.

Reported

Apr 2026

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

My car has stalled while driving on the highway multiple times now. The first time it happened, it lost power, stopped accelerating, and cycled through multiple warning lights, causing a significant safety risk. I pulled over and it restarted within minutes. I took it to a repair shop and they could not find a problem with it, even with the codes provided. Nothing pointed to a solution. It happened two other times while I was driving my child on a highway where it lost acceleration and then kicked back in. Again, this post, a significant safety risk as always in a fast lane on a highway with my child cars behind me had to hit their brakes to avoid me after this incident. Other times it doesn’t lose power, yet it cycles through warning lights randomly. I took it to the dealer instead of a local shop. They texted me about items that should be fixed per an inspection, including struts and a battery replacement. Complete with a large bill just for diagnostics. Yet, nothing was found having to do with the main problem at hand. Losing power while driving. . My battery is less than six months old. I had it tested and it is fine. My vin is not listed in the recall, but, all of the symptoms match the other recalls of the same year make and model.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The front camera mounted near the rear view mirror stopped working which caused several systems to fail. Acura was slow to respond and was not able to complete the repair because the camera was backordered for several months.

Reported

Mar 2026

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

While driving at 25 miles an hour on a smooth curving road out of a housing area my wife who was driving and my grand daughter in the front passenger seat heard a loud boom that sounded like somthing hit the roof. My grand daughter looked into the back passenger area and said she saw a large buldge in the headliner near the back window on the drivers side. My wife continued driving saftly to the nearest parking lot and parked the vehicle, she got out and inspected the roof and found no dammage of any kind. she opened the back window tail gate and saw a large fist size buldge in the headliner near the open area on the drivers side. She had no idea what happened. There were no waring lights or indicators that indicated a problem and she drove home and showed it to me. When I saw it I thought it was a rear window or curtian air bag that tried to deploy but did not break through the headlinner. I have called the dealer and scheduled an appointment to check it out on thur March 26 at 09:00 2026. I verified that there are no indicators or warning lights that indicate a problem. The service department said it should be safe to drive until then.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

Constant errors in dash. Cruise control fails while driving. Auto braking no longer works. Warning of other vehicles in blind spots does not work anymore. Many error in dash display regarding the camera and lkas are displayed.

Reported

Mar 2026

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

UNKNOWN

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

While driving at highway speed, the vehicle suddenly lost the ability to accelerate. Immediately prior to this, the vehicle was making an abnormal engine noise, which continued until the failure. "Drive" light turned off and the "Neutral" turned on its own. I tried to get it to shift back to "Drive" and it wouldn't. I pulled off to the side of the highway. The engine stalled and the vehicle would not restart. The vehicle was towed from the highway and we were told to have it towed to Acura dealer in the morning. This incident occurred while Recall 23V-751 (engine connecting rod bearing defect) was open and incomplete.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

We had the recall repair done on the start/stop feature on our MDX and it seemed to work initially. But recently the feature has caused the vehicle to stall at intersections again as it did before. It’s happened at least 3 times in the last six months with the most recent occurrence being on 1/20/2026. These occurrences happen despite the fact that we try to remember to turn off the feature when we start our trip. Each occurrence has stalled the vehicle at a traffic light in rush hour traffic. It’s very frightening and we are lucky that it hasn’t caused an accident or gotten us shot! We live in Texas (funny but not).

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Factory wheels on Acura MDX cracking at low mileage under normal driving conditions. Structural failure concern.

Reported

Jan 2026

Incident date

Feb 2024

Mileage

Not provided

Outcome flags

None reported

The taillights on this vehicle are defective. I have already had one taillight replaced and now the other side needs to be replaced. These taillights are $300 each for parts only.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

I was merging onto the interstate from another interstate when my car suddenly became limp and would not accelerate. I had zero warning there was anything wrong with my car, only 67,150 miles. I had to coast to the side of the road and it wasn't driveable. I was forced to have it towed to Acura to find out it's a rocker arm oil pressure switch that apparently goes out after 60,000-100,000 miles. Without warning, this is a huge safety issue. There should be a backup switch and notification to get it to a dealer. I had 3 kids in the car, traveling 65 when it suddenly decided to stop accelerating. ZERO warning. It was terrifying. I could have been hit by another car on the interstate, with 3 kids in the car, zero warning to cars behind me that my speed went from 65 to almost nothing instantly. I've always owned Honda cars and this is the first vehicle I've ever had this happen in. Dealership confirmed it was a faulty switch, nothing to do with low oil, dirty oil and I have that in writing. Acrua/Honda should figure out how to alert users that there is an issue before there is an issue. Or put this on the maintenance schedule because I'm terrified to drive this car now. Or how will I know if it's ready to do it again. Again, some type of backup switch that works for a bit until you can get it to dealer. I had to be towed to dealer. Kids had to be picked up. All things that could have been avoided if Honda did a better job.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Front windshield camera went bad due to overheating. When malfunction it gives multiple warning lights, everything that has to deal with front windshield camera does not work. Ive hearing multiple and multiple stories online and in person that they too is affected by camera malfunctioning. There needs to be a recall on it as it is affecting way too many people. My car is a 2019 with ONLY 47000 miles pretty much still new. Parts plus labor and camera calibration is $2200

Reported

Jan 2026

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Multi purpose camera stops working while in use causing safety features to stop working. Has almost caused a serious accident.Acura is stating it is not an issue they feel obligated to fix.

Reported

Dec 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

Since the purchase of my Acura MDX 2019, the following problems have been reported to the dealership and to Honda Manufacturing Inc. without any resolution. The dealer shop has replaced recall parts, but the problems persist and have not gone away. The vehicle stalls and stops working while driving. The engine makes knocking/rattling noises upon becoming disabled while driving.The engine would randomly not start when turning it on. When car becomes disabled the dashboard lights up warning lights displaying messages intermittently of the following problems: Anti-Lock Brake System Problem (ABS), Vehicle Stability Assist (VSA), Hill Start Assist, Trailer Stability Assist, Collision Mitigation System, Road Departure Mitigation System, Adaptive Cruise Control, Lane Keeping Assist, Brake System, Brake Hold System, Electric Parking Brake, SH-AWD, Keyless Start System and Power Steering System (EPS) Problems, while displaying ACC and LWKS codes. Additionally, the vehicle runs improperly and shuts down completely making the window, doors, etc, inoperable while passengers are inside locking me in and my entire family for long periods of time. A few times has left me either myself or with my children and dog inside. The only place where I take my car for services is where I purchased it (Chevy Chase Acura). The issues noted are the same reported by the recalls I have received, and I have not taken it somewhere else because of that reason. Nobody can fix them as the problems are manufacturing issues that even Acura/Honda cannot repair. This safety defect can kill or seriously injure me, my passengers, and other drivers on the road. As noted in one of the many recalls the fuel pump defect can cause the vehicle to stop in the highway and could prevent an engine from starting or cause a vehicle to stall while being driven, it potentially increases the risk of a fire, crash, or injury. My car continues to have these issues and nobody is helping me. Please help!

Reported

Dec 2025

Incident date

Dec 2025

Mileage

Not provided

Outcome flags

None reported

Turned on my car last night and many lights appeared including emissions system problem, electronic brake problem and SH-AWD malfunctioning. All the lights came on at once. According to forums, this is happening with many Acura RDX, MDX models and manufacturer does not have a clear way to repair or resolve the issue. My car has had all the routine maintenance and is scheduled for the 2 recalls to be repaired next week.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

The transfer case is blown, with metal debris collected in it. This has caused the all wheel drive to not work because the transfer case is not sending any power to the rear wheels. The car dashboard doesn't register that that transfer case isn't working, so it it thinks the all wheel drive is working, when it isn't. A bad transfer case can cause the car to lose control or traction when it needs to use the all wheel drive system or completely stop while on a highway because it can lead to damage to other parts of the power train. This has been confirmed by an independent service center. There are no warning lights telling me the transfer case is blown or that there are any issues with the power train. The only sympton I noticed was a high pitched sound when driving. These symptoms first appeared about 3 weeks ago.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

Loud clunking noise when steering, possibly the rack and pinion. Control arms and struts have been replaced.

Reported

Oct 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

My car has failed to restart while sitting at red lights. The engine complete shut down. This has happened twice now since I have owned the vehicle. The first occurrence was around March 2024 and the most recent occurrence was 09/2025. Very dangerous situation both times and I had my child in the car.

Reported

Oct 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

Camera is failing - reportedly due to a bad internal ground-wire. Acura is charging $900 for the part and $1600 for the installation and calibration of a new unit !! Also - the unit is a black color, and located right behind the windshield, so bakes itself to death. Acura should be using white colors inside the space, limit the un-used volume, and recalling the units (or at least providing a low-cost unit) to allow simple replacement and improve safety. Such an important AND EXPENSIVE part should not be failing so often. The MXers.org web site has hundreds of posts about this item. ALSO - the parts should be pre-calibrated! Acura wants several hundred $$ to calibrate it and 4 days to do it. NHTSA should NOT be requiring ADAS technology if it is so fragile and expensive to fix/replace, as in the long-run owners will not maintain it (e..g $2,400 repair bills for a small camera part nad 5 minute change). See: https://www.mdxers.org/threads/multiple-errors-that-wont-go-away-adaptive-cruise-lane-keep-assist-road-departure-collision-mitigation-now-with-troubleshooting-and-solutions.182671/

Reported

Oct 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2019 Acura MDX. The contact stated that while at a stoplight with the Auto START/STOP feature activated, the vehicle failed to restart after releasing the brake pedal. The contact stated that the vehicle was able to be restarted approximately 5 minutes later. The failure had occurred on several occasions. The local dealer was notified of the failure, but the cause of the failure was not yet determined. The manufacturer was not notified of the failure. The contact was made aware of NHTSA Action Number: EA25004 (ENGINE AND ENGINE COOLING); and related the failure to the action number. The failure mileage was 1,000.

Reported

Oct 2025

Incident date

Oct 2020

Mileage

Not provided

Outcome flags

None reported

The front camera responsible for forward collision warning and lanekeep has failed. The camera has part number 36160-TYR-A02. It failed on it's own but it could have been alot worse if it failed before a collision occurred. The dealer and independent repair shop said it was the camera code U3000-49 and this was an out of pocket repair. The symptoms include having these error messages on the gauge cluster. Adaptive Cruise, Lane Keep Assist, Road Departure, Collision Mitigation, and Auto High Beam Problem. At first it would intermittently show up but then after a while those errors would not go away.

Reported

Sep 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

We just got into the vehicle and was driving down the road when the sunroof exploded. Nothing hit it and nobody was around us when it happened. I about went off the road. Didn't know what happened. Very scary that a sunroof can just explode on its own with nothing hitting it.

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

while driving, mdx loose power especially on freeway speed. engine start jerking.

Reported

Sep 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

I was driving at about 65mph on the NJ Turnpike at 7:45pm on 8/28/25 when suddenly the accelerator pedal was non-responsive over a period of about 3-5 seconds. The RPMs dropped (engine did not stall) and the vehicle speed began to diminish. No warning lights showed and the dashboard remained lit as usual. The road was wet from a recent downpour. This was a very scary moment as my vehicle was surrounded by trucks. I further depressed the accelerator pedal and was able to regain control of the vehicle. This is the one and only time this happened with this vehicle as far as I am aware. I have scheduled to bring it to Acura service next week regarding this issue. A Google search has revealed several class action lawsuits regarding this issue.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

My 2019 Acura MDX which was owned for less than two years, broke down due to a transmission failure. The vehicle had an open recall (one of many recent) delayed by Acura for months, which research shows can cause engine and transmission damage. Acura of Reno denied the recall link and misattributed the failure to “incorrect fluid,” despite admitting the fluid was correct to myself and other businesses. I believe this breakdown was directly related to the open recall and request an investigation into Acura’s handling of these failures. There have been many legal cases against acura regarding this matter previously.

Reported

Aug 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

The windshield camera suddenly failed one day while driving and it ended up disabling all the driver assist systems including the emergency braking, lane keep assist, forward collision, auto high beam, cruise control etc. Over the next few weeks the system kept randomly working and failing during driving every few hours or minutes. The discussion forums are filled with people complaining about the same issue with ALL Honda and Acura vehicles starting 2013 where they camera suddenly fails and then start working intermittently until it eventually fails. It seems Honda is using the same defective camera across all it's Honda and Acura models which is a big safety hazard and they refuse to acknowledge the issue.

Reported

Aug 2025

Incident date

Aug 2025

Mileage

Not provided

Outcome flags

None reported

My vehicle is showing identical symptoms to those described in recall 21V-215/23V-858 related to the fuel pump. Although my VIN is not listed in the recall, I would like to verify whether my fuel pump is part of the defective batch, as it is failing in the same way (e.g., loss of power, engine shutting off, hard starting when cold, etc.). Or please confirm if my car symptoms are related to different campaigns.

Reported

Jul 2025

Incident date

May 2020

Mileage

Not provided

Outcome flags

None reported

Vehicle is getting errors for Emssions controls, parking brake, and sh-awd system faults all at the same time. Car will still function normally and codes will go off and come back intermittently. Also while reading the codes it will get a U3006-16 code for low voltage on the ecm. Confirmed battery is good under load test and alternator is charging at 14.2 volts.

Reported

Jul 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

At only 44,318 miles, my 2019 Acura MDX began showing clear transmission problems in the lower gears — including delayed acceleration, gear slipping, and jerky movement when starting or turning at low speed. These symptoms posed an immediate safety risk, especially when merging into traffic or making turns across oncoming vehicles. I first brought the car to Oakland Acura, which incorrectly diagnosed it as a transfer case issue. Their misdiagnosis delayed the repair process and added unnecessary cost and time. I then had the vehicle evaluated at Acura Concord, where it was correctly diagnosed as transmission failure in the lower gears. An independent, certified mechanic also confirmed the same diagnosis. Despite multiple confirmations of premature transmission failure — and a full maintenance history — American Honda offered only a $900 discount on a $9,600 repair, citing the vehicle being just outside the time warranty (but with low mileage well under 50K). I believe this is a manufacturer defect, not a wear-and-tear issue. Safety Concern: This transmission failure is not just inconvenient — it is dangerous. The vehicle hesitates when accelerating from stops or low speeds, which can lead to accidents at intersections, highway merges, or left turns. The misdiagnosis further delayed identifying and addressing this issue. I am filing this complaint to urge NHTSA to investigate whether this is part of a broader pattern with Acura MDX transmissions, and to help prevent similar risks for other drivers and families.

Reported

Jun 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

Rear differential SWD light came on was told it was my tires but in fact it is water corrosion in the rear differential oil pump and subframe wiring harness. Acura is aware of the issue but will not warranty the work. This should be a recall

Reported

Jun 2025

Incident date

Oct 2022

Mileage

Not provided

Outcome flags

None reported

Vehicle Make/Model/Year: 2019 Acura MDX Component Affected: Forward Collision Avoidance / Lane Departure / ADAS (Front Camera System) Summary of Issue: I am filing this complaint regarding a recurring and dangerous issue involving the front windshield-mounted camera on our 2019 Acura MDX. After purchasing this vehicle and driving approximately 5500 miles in Las Vegas, multiple critical safety warnings began appearing on the dashboard, including: •“Collision Mitigation System Problem” •“Road Departure Mitigation System Problem” •“Lane Keeping Assist Problem” •“Adaptive Cruise Control Problem” These warnings occur continuosly. The warning lights won’t turn off, resulting in the complete shutdown of essential Advanced Driver Assistance Systems (ADAS). Safety Concerns: This camera-related failure disables major safety features designed to prevent accidents. The driver is left without automatic emergency braking, lane keeping, or adaptive cruise control. This is especially dangerous at highway speeds. Acura has not issued a recall, despite the widespread nature of this problem and documented cases in other hot-weather regions. Service Experience: We purchased the vehicle used from a Cadillac dealership. The issue began approximately 3 months after purchase. A mechanic confirmed that the front camera system is likely malfunctioning due to heat exposure—a known problem with this model. Why I’m Reporting: I believe this is a safety defect that should prompt investigation. Acura appears to have issued Technical Service Bulletins (TSBs) but has not taken action to proactively notify owners or issue a recall. This defect compromises driver and passenger safety and puts others at risk.

Reported

Jun 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

The passenger windshield behind the driver's seat smelled of smoke and exploded the car while driving. This model has had multiple of the same problem with other cars and refused to identify and fix the problem. I have been informed by Acura that it's an out-of-pocket expense and not covered by warranty because it's not yet under recall despite several occurrences.

Reported

May 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2019 Acura MDX. The contact stated that the vehicle shifted to park while driving at an undisclosed speed. The engine and EVAP system warning lights were illuminated. There was a leak from the Evaporative Emission Control (EVAP) system. The vehicle was previously taken to the local dealer for NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline). The vehicle was repaired, but the failure recurred. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 88,000.

Reported

Mar 2025

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

The headlight assemblies to my vehicle have become defective. The headlight assembly, both right and left, has moisture intrusion within the headlight assembly, creating condensation build-up inside the housing. This issue also caused the headlights to become white and hazy in appearance. I was advised by the dealer that this would lead to failure with the lighting and would have to be replaced. I purchased a certified used vehicle with Tustin Acura in August of 2022 and also purchased an extended warranty for piece of mind. In the 2 1/2 years that I have owned the vehicle, I have added about 25k miles and have always garaged the vehicle. When the issue was reviewed by the dealer, they refused to cover the problem under warranty and requested that I reach out to American Honda for further assistance. I did that but was denied and told the issue was caused by "outside influence," but provided no explanation as to what this meant. To me it felt like I was being blamed for clearly a defective issue. A Google search of this issues revealed to me that this was a common issue with 2019 Acura MDX vehicles. To replace the headlights would be a cost to me of nearly $3,000. it seems almost ridiculous to pay for clearly defective equipment. I fear that my inability to afford this great expense with lead to headlight failure that could result in a collision if this failure were to occur at night.

Reported

Feb 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

My 2019 Acura MDX with 100K miles stalled on the road with several alerts on the dashboard and went into Parking mode with no further movement. Had several alerts stating Transmission failure, Blind Spot monitoring failure, Auto break system failure and vehicle stalled on the road. Had similar issues previously where the steering jammed and vehicle was stalled on the signal, took it to Acura dealer and they had to fix some circuit / reset the circuit board. Was ok for few months and last week the car stalled with Parking sign on. Towed the car to the Dealer service center, they diagnosed and identified there is a failure with transmission. They quoted around 10000 dollars for replace new and 7000 for used transmission. This is huge money, hence called Acura customer care for any review/support but they claimed this issue is not in their current recalls or claims, so cannot support. had to pay out of the pocket. Per google there seemed to be a lawsuit with Transmission failures with Acura 2019 mdx vehicle. Acura customer relations is asking to get into the law suit group and Acura as such cannot help the customers with these problems. Had Lexus for several years with no issues and very upset/annoyed with these type of repairs within 100K / 5year old.

Reported

Feb 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2019 Acura MDX. The contact received notification of NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was not made aware of the issue. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Reported

Feb 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

Electric Parking Brake Problem and Emission System Problem lights came on spontaneously

Reported

Jan 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

None reported

The contact owned a 2019 Acura MDX. The contact stated that while driving approximately 40 MPH, the vehicle experienced a sudden jolt. The contact immediately depressed the brake pedal and the vehicle erroneously accelerated to a high rate of speed. The contact depressed the brake pedal, shifted to neutral, and to the park position but the vehicle continued to increase speed eventually crashing into several vehicles that were stopped at a red light. The vehicle then crashed into a moving vehicle where it came to a stop. The contact indicated that during the incident four vehicles were crashed into and the vehicle's collision avoidance system did not activate as intended. The contact sustained an injured back which later required medical treatment. A second motorist sustained an undisclosed eye injury. No further information was available. A police report was taken at the scene and the vehicle was towed to the home. The cause of the failure was not yet determined. The vehicle was a total loss. The manufacturer and local dealer were not yet contacted. The failure mileage was 22,229.

Reported

Jan 2025

Incident date

Jan 2025

Mileage

Not provided

Outcome flags

Crash 2 injuries

The contact owns a 2019 Acura MDX. The contact stated that while driving at various undisclosed speeds, an abnormal sound could be heard coming from the engine and a fuel-burning odor leaked into the interior and exterior of the vehicle. The transmission jerked while driving. The failure occurred on several occasions. The contact received a notification of NHTSA Campaign Numbers: 23V858000 (FUEL SYSTEM, GASOLINE) and 23V751000 ( ENGINE AND ENGINE COOLING). However, the part to do the recall repair was not yet available. The vehicle was taken to an independent mechanic but was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000. VIN tool confirms parts not available.

Reported

Jan 2025

Incident date

Jan 2024

Mileage

Not provided

Outcome flags

None reported

Engine failure due Dealership refusal to fix recall items. Engine completely stop working in between drive.

Reported

Nov 2024

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

In front of the red light on the way to work in a morning, I stopped my MDX, then when the red light changed to green, I pressed gas pedal to cross over the street, but unfortunately, my car was pulled backward, and meanwhile, I heard a loud sound of Bang from my mdx. I suspect that the loud sound must be from the gears conflicting in the transmission when automatic transmission shifts. Moreover, the car jerks at around 45 mph speed sometimes. Acura must recall fixing this issue.

Reported

Nov 2024

Incident date

Nov 2024

Mileage

Not provided

Outcome flags

None reported

American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear subframe may corrode at the suspension mounting points, which can result in rear suspension component failure.

Risk: Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.

Remedy: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk are expected to be mailed July 7, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning June 10, 2026.

Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura MDX and Honda Pilot vehicles and 2019 Acura RLX, RLX Sport Hybrid, TLX and Honda Odyssey and Ridgeline vehicles. The timing belt teeth may separate from the belt.

Risk: Teeth separation from the timing belt may result in an engine stall, increasing the risk of crash.

Remedy: Honda will notify owners, and dealers will inspect the vehicle and replace any affected timing belt free of charge. Vehicles receiving a replacement timing belt will also have the engine inspected and any damaged components will be replaced for free. The recall began June 7, 2019. Honda owners may contact customer service at 1-888-234-2138. Honda's number for this recall is L4M. Acura owners may contact customer service at 1-888-234-2138. Acura's number for this recall is Z4L.

Honda (American Honda Motor Co.) is recalling certain 2017-2019 Acura MDX, 2017-2018 Acura MDX Sport Hybrid, 2018-2019 Honda HR-V and Honda Odyssey, and 2016 Honda HR-V vehicles. The rear brake caliper pistons may have an insufficient coating, causing gas pockets to form, reducing brake performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."

Risk: A reduction of braking performance increases the risk of a crash.

Remedy: Owners will be notified, and Honda or Acura dealers will bleed the brakes, free of charge. The recall began December 11, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are C31 and L30.

Honda (American Honda Motor Co.) is recalling certain 2014-2019 Acura MDX and 2017-2019 Acura MDX Sport Hybrid vehicles. Moisture may enter the tailgate lid lights, possibly causing a loss of the tailgate lid lights and the taillights.

Risk: Loss of the taillights reduces the vehicle's visibility, increasing the risk of crash.

Remedy: Acura will notify owners, and dealers will modify the tailgate lid lights and install updated gaskets and a wiring sub-harness or will replace both tailgate lid lights. The repairs will be performed free of charge. The recall began May 7, 2019. Owners may contact Acura customer service at 1-888-234-2138. Acura's number for this recall is M49.

Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic Coupe Si, Civic Sedan, Civic Sedan Si, Civic Type R, Fit, HR-V, Odyssey, Passport, Pilot and Ridgeline, and 2018-2019 CR-V vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed May 18, 2021. Owners may contact Honda customer service at 1-888-234-2138. Note: This recall is an expansion of recall 20V-314.

Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.

Risk: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.

Remedy: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

Honda (American Honda Motor Co.) is recalling certain 2014-2020 Acura MDX vehicles. Moisture may enter the tailgate lid light assembly and wiring harness, which can cause the interior and exterior lights to fail, including the lid lights, position lights, license plate lights and taillights.

Risk: Vehicle lights that fail to illuminate can decrease visibility and increase the risk of a crash.

Remedy: Dealers will inspect the wiring and install a fuse harness, replace the lid light, and repair the body dust sealer, as necessary, free of charge. Owner notification letters were mailed May 30, 2025. Owners may contact Acura's customer service at 1-800-382-2238. Acura's number for this recall is FLI. Vehicles included in this recall that were previously repaired under NHTSA recall number 19V-256 will need to have the new remedy completed.

Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.

Risk: Air bags that deploy unintentionally during a crash increase the risk of injury.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.