TireKick

Model-year record

2021 Acura RDX
Image: Wikimedia Commons contributor · See source file

2021 Acura RDX

See the complaints, recalls, crash rating, and fuel economy in the public record. Then check the mileage and history of the car you found.

This page shows records, not a buy or avoid call.

The same model year can include a well-kept car and a neglected one. Use these records to plan what to check. Use the specific-car check when you know the mileage.

Complaints filed

105

Reports to NHTSA, 2021

Safety recalls

3

NHTSA campaigns on record

NHTSA crash test

Overall NCAP rating

Combined MPG

23.5

EPA estimate

Known issues

Unknown Or Other issues lead owner complaints (21% of 105 reports), followed by air bags (10%).

Unknown Or Other21% · 22 reports
Air Bags10% · 10 reports
Service Brakes10% · 10 reports
Power Train9% · 9 reports
Structure9% · 9 reports
Visibility/Wiper9% · 9 reports
Electrical System7% · 7 reports
Vehicle Speed Control7% · 7 reports

+ 8 more component categories with fewer reports.

Share of all 105 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11751315, ODI 11728451, ODI 11711100, ODI 11704856, ODI 11704608.

Individual complaint reports(105)

Showing the 50 most recent reports
Unknown Or OtherJul 2026 · ODI 11751315Details +

While driving only at 35 miles per hour down the XXX in [XXX] my panoramic sunroof suddenly bursts. A loud pop sound. This would have popped all over my body if I didn’t have cover up. This is an extreme problem as someone can die from this. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Jul 2026
Incident date
Jul 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11751315 at NHTSA →
EngineJul 2026 · ODI 11751130Details +

Vehicle lost all coolant and could be smelled. Vehicle was towed to dealership before it could overheat. Diagnosed with a cracked cylinder head at 88,000 miles. Vehicle has never been modified, tracked, nor has it ever overheated. All service has been performed on time and at Acura dealership since I purchased the vehicle brand new. Vehicle is still at dealership. I've researched and found many other owners experiencing the same problem with the crack occurring in the exact same spot on the cylinder head.

Reported
Jul 2026
Incident date
Jul 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11751130 at NHTSA →
Vehicle Speed ControlJul 2026 · ODI 11750876Details +

On or about XXX, my 2021 Acura RDX, with approximately 121,078 miles, suddenly displayed multiple dashboard warning lights and system-failure messages while I was driving. These included the check-engine light, Road Departure Mitigation System Problem, steering, stability-control, braking-assistance and other driver-assistance warnings. Earlier, the tire-pressure monitoring system had also indicated a malfunction even though the tire pressures were correct. The vehicle initially continued to drive and the conventional brakes appeared to function normally. However, it then began hesitating when I attempted to accelerate. The vehicle would eventually gain speed, but the initial hesitation created a serious safety concern when pulling into traffic or attempting to accelerate. The check-engine light remained solid while the vehicle was stopped but flashed whenever I began driving and accelerating again. No crash, fire or injury occurred. The vehicle had undergone a full diagnostic inspection approximately two weeks earlier, and I was informed that everything checked out properly. There were no known drivability problems before this incident, and the vehicle has been maintained according to the manufacturer’s recommended service schedule. The vehicle was subsequently inspected by Elite Acura, an authorized Acura dealership in [XXX]. The dealership confirmed a head-gasket failure and a problem with the rear differential left-side actuator. The dealer recommended replacing the head gasket, four spark plugs, coolant, oil and filter, as well as replacing the rear differential left-side actuator and changing the differential fluid. The estimated head-gasket repair was $5,391.46, and the estimated rear differential actuator and fluid service was $813.85. The dealer also recommended rear brake pads and rotors. The head-gasket and rear differential actuator problems were confirmed by the authorized Acura dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Jul 2026
Incident date
Jul 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11750876 at NHTSA →
Power TrainJun 2026 · ODI 11746061Details +

A transmission fluid leak has been identified emanating from the passenger side output shaft seal, located between the transmission and the transfer case. This issue pertains to 2019–2023 Acura RDX and TLX models equipped with SH-AWD, specifically at the interface where the transmission connects to the front transfer case, which is responsible for power distribution to the rear wheels. It appears that the fitment tolerances at this connection point are problematic, suggesting a potential engineering deficiency that warrants a manufacturer-funded resolution..

Reported
Jun 2026
Incident date
Nov 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11746061 at NHTSA →
Electrical SystemJun 2026 · ODI 11743690Details +

The contact owns a 2021 Acura RDX. The contact stated that while at a complete stop at a stop sign or traffic light, the engine auto stop-start system was inoperable upon depression of the brake pedal. The vehicle was taken to the dealer, but the failure could not be duplicated. The dealer initially suggested that the battery might require replacement. However, another dealer determined that the battery was functioning properly and exhibited no defects upon inspection. The manufacturer was not notified of the failure. The failure mileage was unavailable.

Reported
Jun 2026
Incident date
Oct 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11743690 at NHTSA →
Electrical SystemMay 2026 · ODI 11737515Details +

The Auto High-Beam system activates the high beams inappropriately during operation. The system triggers the high beams directly into the eyes of oncoming traffic and activates during early dusk conditions. The sudden, intense illumination blinds oncoming drivers. This creates an immediate glare hazard and significantly increases the risk of a head-on collision. I reported this specific failure to the authorized dealership on three separate occasions, engaging three distinct service advisors during the active warranty period. The service department omitted these complaints from the formal repair orders. The first advisor stated the system was functioning normally. The second advisor stated the technicians completed an inspection and verified the system as fully operational. The third advisor acknowledged experiencing the exact same malfunction on their personal vehicle and instructed me to manually disable the safety feature. The system fails silently, displaying zero warning lamps or error messages prior to or during the malfunctions. The attached service invoices document a severe, underlying instability within the vehicle's electrical and Advanced Driver Assistance Systems (ADAS) network, culminating in a complete VSA modulator replacement. These records establish a confirmed administrative pattern of the dealership dismissing intermittent safety faults, officially logging statements such as "unable to verify issue" and "no problem found" on subsequent visits. This evidentiary paper trail substantiates the dealership's systemic suppression of my specific, repeated verbal reports regarding the Auto High-Beam safety hazard. The vehicle and the Auto High-Beam system remain available for inspection upon request.

Reported
May 2026
Incident date
Oct 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11737515 at NHTSA →
Unknown Or OtherApr 2026 · ODI 11728451Details +

On March 20th, my husband and I went out to dinner with three friends. We arrived around 6:50 PM and left our car with the valet. When we returned later that evening to pick up the vehicle, a valet employee approached us and asked us to walk with him to the car. The police were already present at the scene. The employee explained that when he entered the vehicle on the driver’s side to return it to us, he closed the door and immediately heard the sound of glass shattering. When we reached the car, we saw that the entire rear window had been shattered. The police later reviewed the surveillance footage and confirmed that the incident occurred exactly as described by the valet employee.

Reported
Apr 2026
Incident date
Mar 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11728451 at NHTSA →
VisibilityMar 2026 · ODI 11725540Details +

The contact owns a 2021 Acura RDX. While driving at an undisclosed speed, there was an abnormal gunshot sound coming from the vehicle. The vehicle was driven to the residence. The contact inspected the exterior of the vehicle but found no failure. The contact stated that the following day, while driving at an undisclosed speed, the panoramic roof glass shattered, and glass shards fell inside the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.

Reported
Mar 2026
Incident date
Feb 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11725540 at NHTSA →
Visibility/WiperFeb 2026 · ODI 11720321Details +

Got in my vehicle as usual, started the vehicle shortly after I heard cracking thought nothing of it and all of a sudden the rear tailgate window shattered completely.

Reported
Feb 2026
Incident date
Feb 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11720321 at NHTSA →
StructureFeb 2026 · ODI 11717087Details +

- Rear window shattered without impact or any signs of stress. - Safety at risk if driving and breakage occurs. In this case I was away from the parked vehicle when the shattering occurred. - There are quite a few reports of this issue online in Facebook Acura owner groups and in published news stories such as this: [XXX] - In my case, it was inspected by the repair company and confirmed to be a common occurrence they are called to repair. - There were no warning lights or any signs of damage or stress to the glass. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Feb 2026
Incident date
Feb 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11717087 at NHTSA →
Electrical SystemJan 2026 · ODI 11713768Details +

Infotainment system fails on occasions. Sceen goes completely blank causing distraction while driving. There is currently a recall for this issue for 2019-2020 RDX.

Reported
Jan 2026
Incident date
Jan 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11713768 at NHTSA →
StructureJan 2026 · ODI 11713052Details +

Sudden breaking of panoramic glass on sun/moon roof. I believe this is related to the clicking noise that is caused by the improper bolting in this model. There is an active service bulletin for the improper bolting/flexing in the panoramic glass. I called the Acura dealership where this was bought and they didn’t acknowledge that. I had my two children, toddler and infant, in the back. They like the panoramic open. If this broke on top of them this would be a very serious injury.

Reported
Jan 2026
Incident date
Jan 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11713052 at NHTSA →
Unknown Or OtherJan 2026 · ODI 11711100Details +

Warmed car before driving, once I got in car and shut drivers side, Rear window shattered. Common issue with other owners of same car. Reached out to Acura dealerships and they claim it’s not an issue that is happening and will not replace it.

Reported
Jan 2026
Incident date
Jan 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11711100 at NHTSA →
VisibilityJan 2026 · ODI 11710918Details +

The contact's sister owns a 2021 Acura RDX. The contact stated that the rear glass had shattered while the vehicle was parked in the driveway. The dealer was contacted and advised that the earliest availability to replace the glass was in 3-4 days. The manufacturer was notified of the failure and a case was opened; however, the manufacturer later informed the contact that the model year was not covered under TSB: 22-014 (Rear Windshield Glass Shattering). The failure mileage was approximately 60,000.

Reported
Jan 2026
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11710918 at NHTSA →
Service BrakesDec 2025 · ODI 11705948Details +

After dealer (worldwide motors Ltd also call (Paragon Acura) 33-40 57th street, Woodside, NY 11377)replaced front and rear brake pads and rotors, my vehicle experienced unintended acceleration while stopped. While idling at a red light with my foot firmly on the brake pedal, the vehicle suddenly moved forward approximately 10 feet on its own. This was a serious safety concern and nearly caused a collision or pedestrian injury. I immediately returned the vehicle to the dealer. The dealer stated they could not duplicate the issue and said the vehicle was operating normally. No warning lights were present. The incident occurred immediately after brake service. I am concerned this may involve the braking system, brake booster, brake switch, or electronic throttle interaction. This behavior is not normal and poses a safety risk.

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11705948 at NHTSA →
Unknown Or OtherDec 2025 · ODI 11704856Details +

Back windshield glass exploded with no impact. Car was not moving. There is shattered glass everywhere and the car cannot be driven until it is repaired. This appears to be a well known issue but there is no official recall at this time. My Acura dealer said this was covered in warranty that expired in November. The incident happened December 13, 2025.

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11704856 at NHTSA →
Unknown Or OtherDec 2025 · ODI 11704608Details +

Back windshield shattered and blew out with zero impact. Car was parked Manufacturer denies responsibility . Independent company repaired because dealer was booked and needed fixed quickly. No one injured glass all over back of car and trapped in base of doo now because of faulty design. No warnings at all.

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11704608 at NHTSA →
StructureDec 2025 · ODI 11703939Details +

1:Sunroof frame shifts creating a popping noise during certain driving conditions. Turning and going up a drive way. 2:Distracting for the driver and passengers stay concerned the whole time. 3:There is a service bulletin with Acura 23-004 but no recall to the matter. 4: Unknown 5:No warning lamps

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11703939 at NHTSA →
Unknown Or OtherDec 2025 · ODI 11703819Details +

I had found a leak coming from my 2021 Acura RDX early November. I took it into the dealership December 1st to get it diagnosed and they stated that the transmission and transfer case needs to get replaced. du The problem has been confirmed by the Bloomington Acura dealership on December 1st 2025. After doing research online it looks like this has happened to multiple people with different Acura Models, including newer models of RDX, TLX and MDX. No warning lamps, messages or failures appeared. Just oil leaking beneath the vehicle. It looks like Acura is aware of the issue. The metal shavings from the splines between the transmission and transfer case is destroying the seal. Causing the oil leak hence a new transmission and transfer case.

Reported
Dec 2025
Incident date
Nov 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11703819 at NHTSA →
Visibility/WiperDec 2025 · ODI 11702647Details +

I closed my driver door and the back window just shattered. The glass just exploded.

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11702647 at NHTSA →
Visibility/WiperDec 2025 · ODI 11702676Details +

My car was parked in my driveway. After starting it up and closing my driver’s side door, the entire rear windshield spontaneously shattered without warning or any external manipulation/force. There was no way of knowing of whether or not this would happen. I fear that if I had my dogs in the car (or a child) someone could have been seriously hurt. Shards of glass went everywhere - in the trunk, all over the cargo area, and all over my driveway. I am now stuck without a car while I try to get this repair figured out. Acura/Honda needs to place a recall on this ASAP after seeing how common of an issue it is for many RDX (and other models) owners.

Reported
Dec 2025
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11702676 at NHTSA →
Power TrainNov 2025 · ODI 11697855Details +

The transfer case began leaking between the transmission and transfer case. Upon taking it to a mechanic I’ve been told the entire transfer case needs replacement because it has prematurely failed. The repair cost is $5533.00. Through research I’ve seen there are many failing transfer cases on acuras with the SH all wheel drive systems. I believe Acura has a design flaw in the system and should be responsible for the repair.

Reported
Nov 2025
Incident date
Nov 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11697855 at NHTSA →
Visibility/WiperOct 2025 · ODI 11696079Details +

Rear window spontaneously shattered

Reported
Oct 2025
Incident date
Oct 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11696079 at NHTSA →
Unknown Or OtherSep 2025 · ODI 11688888Details +

Complaint Summary I am filing this complaint regarding American Honda Motor Corp’s handling of a warranty claim on my 2021 Acura RDX. Despite being within the 4-year/50,000-mile warranty, I was denied full coverage for a well-documented defect: condensation/moisture in both headlight housings with no external damage. •Dealer (Rick Case Acura, Sunrise FL) confirmed the condition. •Technician Francisco documented internal moisture, no external damage. •Service Manager Wade Bell submitted goodwill request [XXX], which was approved at 70% only. •My out-of-pocket responsibility was ~$1,400. •I requested full coverage from American Honda, consistent with Acura’s warranty obligations and known issues with these headlight assemblies. On a recorded call, American Honda repeatedly stated my request was denied, refused to provide a written denial, and declined to issue a case reference number directly. Only after reviewing an email did I locate the case number ([XXX]). This refusal to document their denial is highly concerning. ________________________________________ Timeline of Events •[XXX]: Moisture first observed after rain; confirmed by dealer technician. •Dealer Request: Goodwill [XXX] approved at 70%. •Repairs Completed: Both headlights replaced; repair order available. •Sep 2025: American Honda denied my appeal verbally on recorded call; refused written denial. ________________________________________ Manufacturer Guidance Ignored Importantly: American Honda’s own dealer service bulletin (2023) regarding 2019–2021 Acura RDX headlamps explicitly instructs dealers to: •“Create an iN case number (via AcuraLink/Dealer iN) when moisture or condensation is observed inside RDX headlamp housings with no external damage present.” •“Submit for goodwill/warranty replacement of the affected headlamp assemblies.” This vehicle falls squarely within that guidance: a 2021 RDX, <4 years old, <50k miles, with moisture documented by the dealer. Despite this, A INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Sep 2025
Incident date
Aug 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11688888 at NHTSA →
StructureJun 2025 · ODI 11668795Details +

While driving over a bump or curb to enter parking lot, I hear a popping noise coming from the sunroof at the front passenger and rear driver side of the car.

Reported
Jun 2025
Incident date
Jun 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11668795 at NHTSA →
Air BagsJun 2025 · ODI 11668941Details +

The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (AIR BAGS); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Reported
Jun 2025
Incident date
Mar 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11668941 at NHTSA →
SteeringJun 2025 · ODI 11667398Details +

At start up, my car displayed 4 errors: Lane Keeping Assist System, Collision Mitigation Braking System, Road Departure Mitigation System, and Electric Power Steering. As a result, my car could not steer and had to get it towed to the dealership.

Reported
Jun 2025
Incident date
Jun 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11667398 at NHTSA →
Electrical SystemJun 2025 · ODI 11666634Details +

AcuraLink App was used to attempt to remote start car while at a store, however, the app reported a failed notification and car was never started through the app and only turned on manually. Two hours later, when at home, the car remote started suddenly with no prompt while it was inside of a closed garage. Our dog heard the car go off and alerted us. Had he not heard it, the car would have been running in a closed garage putting us at risk for carbon monoxide poisoning. I have done no other reporting, but I did look this up and found threads online about the same issue and was recommended to report here. There were no other warnings or messages to say that the car turned on.

Reported
Jun 2025
Incident date
Jun 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11666634 at NHTSA →
Vehicle Speed ControlJun 2025 · ODI 11665825 · crashDetails +

Drove into parking lot and as I was pulling into the parking spot next to the building, the vehicle started to surge forward as if I had my foot on the gas instead of the brake. The sudden surge caused the vehicle to plow into a brick building causing about $10K damage to the vehicle and $5K to the building. This was not the first time this sudden surging occurred. It happened at least 3 times previously, and one time since. Fortunately, the other occurrences did not lead to any damages, but just some anxious moments. I took the vehicle to the dealership to get checked out after the last occurrence, but they said they couldn't duplicate it. I thought it might be some sort of "unknown" problem, until I started reading on Facebook and other internet websites of other people having the same scary "surging" engine issues. I believe there's more to it now, and an investigation is warranted.

Reported
Jun 2025
Incident date
May 2024
Mileage
Not provided
Outcome flags
Crash
Open ODI 11665825 at NHTSA →
Service BrakesJun 2025 · ODI 11664195Details +

I have a 2021 Acura RDX A-spec AW and ever since I had a brakes problem, when applying brakes will not take break promptly kept slipping like going I address this to the dealer numerous time and what they said is that they haven’t had a recall in order to know what really the problem is I think is due to my calipers and probably rotors, but I think is the cut for defect on these 2021 Acura RDX . Also my engine been leaking oil from the top rear side and rear the valve cover this need to be addressed and I have made a complaint to Acura Honda The Corp. and they said they haven’t been a recall for this. Also, I would like someone to look at this matter break And engine problem due to a leak that could cost a fire.

Reported
Jun 2025
Incident date
May 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11664195 at NHTSA →
Electrical SystemMay 2025 · ODI 11659951Details +

It was raining and I was sat at a stop light. The brakes started to slip a little no matter how much I pressed then all of a sudden the entire car started shutting down. Engine, Transmission, Power Steering, Lane Keep Assist, Collision warning, all the lights started flashing. The car was put into Limp mode.

Reported
May 2025
Incident date
May 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11659951 at NHTSA →
Air BagsApr 2025 · ODI 11654551Details +

The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Reported
Apr 2025
Incident date
Feb 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11654551 at NHTSA →
Exterior LightingApr 2025 · ODI 11653202Details +

The contact owns a 2021 Acura RDX. The contact stated that while operating the vehicle, the front headlights and instrument panel lights started blinking off and on. The vehicle was later towed to the local dealer, who diagnosed the vehicle and determined that the body control module had malfunctioned due to water intrusion from the moon roof seals. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 30,000.

Reported
Apr 2025
Incident date
Apr 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11653202 at NHTSA →
StructureMar 2025 · ODI 11646812Details +

Panoramic sunroof pops under stress Acura TSB 23-004

Reported
Mar 2025
Incident date
Nov 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11646812 at NHTSA →
Air BagsFeb 2025 · ODI 11643177Details +

I have been trying to get my vehicle repaired for over a year in response to recall number 24V-064 with no success. The vehicle manufacturer is not providing the required parts to the dealership to address this recall from early 2024. I think additional action needs to be taken against the manufacturer to drive improved behaviour to address safety recall issues in a timely manner

Reported
Feb 2025
Incident date
Feb 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11643177 at NHTSA →
Service BrakesJan 2025 · ODI 11639629Details +

The front brakes and possibly the rear as well judder when applied at moderate and higher speeds. The sensation is disconcerting as though the brakes are prematurely failing. Malfunctioning brakes are obviously a safety issue. This is an ongoing problem and shouldn't be happening on a gently used, well maintained vehicle. It has been happening consistently and worsening for at least the past year. It is very reproducible but when I contacted the closest Acura dealer, they denied any known issues affecting this vehicle. No warning lamps or other errors were set but I doubt this issue is monitored by the vehicle's sensors.

Reported
Jan 2025
Incident date
Jan 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11639629 at NHTSA →
Unknown Or OtherJan 2025 · ODI 11639766Details +

While accelerating off the entrance ramp onto the highway, The engine randomly slows down automatically…the car reduced speed drastically without applying brakes and without cars around me or in front of me.

Reported
Jan 2025
Incident date
Jan 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11639766 at NHTSA →
Unknown Or OtherJan 2025 · ODI 11639203Details +

Rear window shattered without any certain impact due to a manufactured known defect. While I was driving the window shattered and all glass when flying every where. I contacted the dealer and the Acura corporate and they don’t want to know anything about it. I have my car sitting in my parking g lot because I don’t have $1000 to pay to replace my rear window. Right now there is a class action lawsuit to Acura due to this issue but nobody is taking responsibility for this incident. I will appreciate if you can look into this because it is very dangerous and it can cause a big accident.

Reported
Jan 2025
Incident date
Jan 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11639203 at NHTSA →
Service BrakesJan 2025 · ODI 11637752Details +

On July 21st, 2024, the electronic parking brake on our 2021 Acura RDX seized and would not release. The vehicle had not sustained any damage and only had 63,270 miles on the odometer. The vehicle was in the garage but the brake seizure rendered the otherwise functioning vehicle unusable. The vehicle is available for inspection. There was nothing to indicate a problem prior to failure on the 21st. An Acura dealer replaced the gear unit motor that actuates the parking brake but the brake did not disengage as per the repair invoice attached. It was determined the parking brake switch circuit connection did not match specs and the parking brake switch was replaced. The parking brake worked at the time we retrieved the vehicle from the dealership but currently do not engage the brake as we are unsure if this will fail again. This issue put us and owners of like vehicles in danger due to the fact that a simple switch malfunction seizes the rear brakes of the car. Fortunately the vehicle was in our garage at the time but if failure occurs at speed, rear locked brake(s) could no doubt lead to a serious crash. At best, a parked disabled vehicle leads to very costly inconvenience as it did for us. Whether a failed switch or a poor connection my concern is the problem replicates while in motion while driving and losing control of the vehicle. From internet searches it appears failed switches are a growing problem with Honda vehicles equipped with electronic parking brakes. There exists no override ability to disengage the parking brake apart from the electronic switch. Again, an otherwise functioning vehicle can be disabled as the rear wheel(s) are seized.

Reported
Jan 2025
Incident date
Jul 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11637752 at NHTSA →
Air BagsJan 2025 · ODI 11635833Details +

The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (AIR BAGS); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Reported
Jan 2025
Incident date
Mar 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11635833 at NHTSA →
Seat BeltsJan 2025 · ODI 11635432Details +

Complaint about failure to execute recall and lack of solutions from the official dealer I, [XXX] , owner of a 2021 Acura RDX, VIN: [XXX] , am filing a complaint regarding the inadequate execution of a recall and the lack of solutions from the official dealer. What component or system failed or malfunctioned? The issue concerns the seat weight sensor, which is supposed to be replaced as part of the recall. How was your safety or the safety of others put at risk? Due to the malfunction of the mentioned component, the safety of passengers could be compromised, especially in the case of an emergency, where this component plays an important role in the safety system. Has the problem been reproduced or confirmed by a dealer or independent service center? The official dealer confirmed the need for the recall, but refuses to perform the replacement, citing the unavailability of necessary parts and offering no alternative solutions. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle was registered for the recall, but a specific inspection by the manufacturer has not taken place. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure? At the time of contacting the dealer, there were no prior warning lamps or messages, but the situation requires immediate attention. Description of the incident and cause: Despite the recall being in place and the notification for the required repairs, the official dealer refuses to take the necessary action, citing the lack of parts, and does not offer any alternative solutions or specific timelines. This situation creates uncertainty and poses a potential safety risk. I kindly ask for prompt action to resolve this issue and ensure the recall is executed as soon as possible. Sincerely, [XXX] Contact information [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Jan 2025
Incident date
Jan 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11635432 at NHTSA →
Visibility/WiperDec 2024 · ODI 11630581Details +

I shut my driver door and my rear window shattered. I’ve called the dealer and they said this happens a lot. Our neighbor across the street also had this happen to them last week. The car was not even on.

Reported
Dec 2024
Incident date
Dec 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11630581 at NHTSA →
Service BrakesDec 2024 · ODI 11630484Details +

I bought this car from a Honda dealership 1 month ago and my brakes are squeaking very loud when reversing my car. It happens every morning and is very frustrating. I would like this fixed for it being such an expensive car.

Reported
Dec 2024
Incident date
Dec 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11630484 at NHTSA →
VisibilityDec 2024 · ODI 11630198Details +

The contact owns a 2021 Acura RDX. The contact stated that while attempting to open the trunk, the rear window glass shattered. No warning lights were illuminated. The local dealer was contacted, and the contact was informed that the shattered glass was not covered under warranty and suggested that a local glass specialist be contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000.

Reported
Dec 2024
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11630198 at NHTSA →
Air BagsNov 2024 · ODI 11623495Details +

The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Reported
Nov 2024
Incident date
Nov 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11623495 at NHTSA →
Visibility/WiperSep 2024 · ODI 11616244Details +

Windshield washer pump has failed due to washer nozzles being clogged. Washer pump replaced, but still will not work as the nozzles are clogged. Nozzles are on back order, so therefore unable to clean windshield while driving. No idea when the nozzles will be in stock as this item is on critical back-order.

Reported
Sep 2024
Incident date
Sep 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11616244 at NHTSA →
Electrical SystemSep 2024 · ODI 11616293Details +

Acura RDX 2021.Faulty seat weight sensor front passenger seat. My wife is petite, [XXX] " and weighs [XXX]. When she sits in front passenger seat, at times, the seat weight sensor doesn't register that she's sitting in the seat and the air bag is not engaged. intermittently, the SRS light illuminates but many times it doesn't. I've taken the vehicle into the dealer (Chevy Chase Acura, Bethesda, MD) and they say there is nothing they can do when the SRS light is not on. I've brought the vehicle into the dealership several times. They say that parts are limited and not generally available and are expedited only when the SRS light is illuminated. I've called and spoken with American Honda Customer service and they refuse to help stating the same thing the dealer says. But this is definitely a safety issue. NHSTA Recall # 24V-064. Service Bulletin # 24-015. Please help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Sep 2024
Incident date
Oct 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11616293 at NHTSA →
StructureJul 2024 · ODI 11598342Details +

The panoramic sunroof makes popping sounds when I drive the car up or down ramps or curbs at angles that twists the chassis. This could potentially break and shatter the glass on top of the driver and passengers or worse dislodge from the mounting bracket and fall into the cabin of the car.

Reported
Jul 2024
Incident date
Jul 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11598342 at NHTSA →
Air BagsJun 2024 · ODI 11597488Details +

The contact owns a 2021 Acura RDX. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags); 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 made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. Parts distribution disconnect.

Reported
Jun 2024
Incident date
Feb 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11597488 at NHTSA →
Unknown Or OtherJun 2024 · ODI 11596265Details +

I took my 2021 Acura RDX to Pohanka Acura Service, Chantilly, VA 20151 after I noticed broken rear door weather strips on both sides which is very unusual for a new car. Dealer said it is not covered under warranty. Then I got them replaced by paying the full price for this to the dealer. I contacted the corporate HondaUSA for reimbursement for this issue and they said it would not cover under warranty. Even after they replaced the old weather strips with the new ones, I noticed same issue but at other location (weather strips were not attached to the doors at the corner). I took it back to the dealer again to fix and they said they cannot fix it as all RDX have same thing and they showed me some new RDX and I found the same issue in that car also. I am concerned whether these gaps will cause any problem due outside rain, wind, dust etc.

Reported
Jun 2024
Incident date
Jun 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11596265 at NHTSA →

This page shows the latest 50 reports to keep it usable. The count above includes every complaint NHTSA has returned for this model year.

Recalls(3)

Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.

Air BagsJan 2024 · 24V064000Details +

Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.

Risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.

Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.

Open full NHTSA recall record →
Power TrainFeb 2021 · 21V939000Details +

Honda (American Honda Motor Co.) is recalling certain 2021 Acura RDX and 2022 CR-V Hybrid vehicles. A component in the right or left front driveshaft may have been improperly heat-treated, which could result in driveshaft failure.

Risk: Driveshaft failure can cause a sudden loss of drive power, or cause the vehicle to roll away when parked if the parking brake is not applied. Either condition can increase the risk of a crash or injury.

Remedy: Dealers will replace the right or left front driveshaft as necessary, free of charge. Owner notification letters were mailed January 24, 2022. Owners may contact Honda customer service 1-888-234-2138. Honda's numbers for this recall are BBY, NBW, and OBX.

Open full NHTSA recall record →
Air Bags · 26V332000Details +

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.

Open full NHTSA recall record →

A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.

Investigations

0 NHTSA investigations on record

No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.

Crash-test ratings

2021 Acura RDX SUV AWD NHTSA source

Overall
Frontal
Side
Rollover

2021 Acura RDX SUV FWD NHTSA source

Overall
Frontal
Side
Rollover

Source: NHTSA New Car Assessment Program (NCAP).

Fuel economy by trim

TrimEngineDrivetrainCityHwyCombined
RDX FWD A-SPEC2.0L 4-cylFront-Wheel Drive222724
RDX FWD2.0L 4-cylFront-Wheel Drive222824
RDX AWD A-SPEC2.0L 4-cylAll-Wheel Drive212623
RDX AWD2.0L 4-cylAll-Wheel Drive212723

EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.

Before you buy

Useful next checks

Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.

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Compare the year-by-year record

Open another year for its own evidence-gated decision. TireKick does not crown a best year from raw complaint totals.

2021 Acura RDX: frequently asked

What does the complaint record show for the 2021 Acura RDX?

Owners filed 105 NHTSA complaints about the 2021 Acura RDX. This is raw owner-reported complaint volume with no production or exposure normalization, so it is not a reliability score or a best/worst-year ranking.

What are the most common problems on the 2021 Acura RDX?

The most-reported problem areas are Unknown Or Other (21% of complaints) and air bags (10%).

How many recalls does the 2021 Acura RDX have?

3 recalls have been issued that affect the 2021 Acura RDX, covering components such as air bags. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.

What gas mileage does the 2021 Acura RDX get?

The EPA rates the 2021 Acura RDX between 23 and 24 mpg combined, depending on trim and drivetrain.