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Model-year record

2018 Infiniti Q70
Image: Wikimedia Commons contributor · See source file

2018 Infiniti Q70

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

4

Reports to NHTSA, 2018

Safety recalls

1

NHTSA campaigns on record

NHTSA crash test

Not rated

Overall NCAP rating

Combined MPG

20

EPA estimate

Known issues

Air Bags issues lead owner complaints (75% of 4 reports), followed by electrical system (25%).

Air Bags75% · 3 reports
Electrical System25% · 1 report

Share of all 4 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11575017, ODI 11718998, ODI 11694676.

Individual complaint reports(4)

Showing the 4 most recent reports
Electrical SystemMay 2026 · ODI 11736425Details +

Component/system failed: Passenger seat occupant classification/seat weight sensor associated with the Supplemental Restraint System (SRS). Repair facility stated moisture or prior moisture intrusion likely affected the sensor. The failed component should be available for inspection upon request. Safety risk: The airbag/SRS system may not properly detect or classify a passenger, which could affect passenger airbag operation and occupant protection during a crash. The airbag warning light remained illuminated. Problem reproduced or confirmed: Yes. The issue was diagnosed and confirmed by the repair facility/dealer. Inspected by manufacturer, insurance, or others: The vehicle was inspected by a repair facility/dealer service department. Warning lamps/messages/symptoms: The airbag/SRS warning light illuminated. The repair facility identified the passenger seat weight sensor as the likely cause and noted prior moisture exposure affecting the sensor.

Reported
May 2026
Incident date
Jan 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11736425 at NHTSA →
Air BagsFeb 2026 · ODI 11718998Details +

The Passenger Occupant Classification System in the passenger seat is showing an airbag code of B00A0-02 on my 2018 Infiniti Q70L . The dealer cannot clear that code. The only solution is to replace the entire seat bottom (leather/foam/all electronics for raising the seat) all integrated. That part number is 87300-6ar3a and sells for $2800 plus labor to replace, over $600. My 2018 Infiniti Q70L only has 10300 Miles, garage kept. This integrated design has been problematic for the Q70 and Q50. Cost to repair is enormous. Infiniti should acknowledge this issue. It is a MAJOR SAFETY ISSUE, because if not repaired the passenger airbag is permanently turned off and for a failure for a car with so few miles and meticulously kept, this is unacceptable. I have 2 of the Q70's and its a matter of time before the other vehicle show the same issue.

Reported
Feb 2026
Incident date
Feb 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11718998 at NHTSA →
Air BagsOct 2025 · ODI 11694676Details +

I have an immaculately maintained 2018 Infiniti Q70L, but the OCS system began having issues at under 75k miles. Originally, the problem was the passenger seat sensor not detecting someone in the seat, so airbags were disabled. This occured sporadically for a year, but no codes were detectable by dealership. Now the airbag sensor light flashes continually, which began happening a few weeks ago. The dealership has now informed me that the OCS system has internal faults and the entire system must be replaced at a price of nearly $10K. Other years of Infiniti vehicles have already been recalled for the same issues with airbags and sensors, yet the problem persists. Message boards are full of Infiniti owners dealing with this same issue on their vehicles that are also excluded from the recall. This is a known safety issue, and a major defect in manufacturing, due to no fault of the owners of the vehicles. THIS NEEDS TO BE A RECALL.

Reported
Oct 2025
Incident date
Oct 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11694676 at NHTSA →
Air BagsMar 2024 · ODI 11575017Details +

seat belt and air bag warning light on, had dealer check stated problem in the passenger seat cushion and notofied factory but no satisfaction.

Reported
Mar 2024
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11575017 at NHTSA →

Recalls(1)

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.

Power Train · 24V470000Details +

Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.

Risk: A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied. Both scenarios can increase the risk of a crash.

Remedy: Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.

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

2018 Infiniti Q70 4 DR RWD NHTSA source

Overall
Not rated
Frontal
Side
Not rated
Rollover

2018 Infiniti Q70 4 DR AWD NHTSA source

Overall
Not rated
Frontal
Side
Not rated
Rollover

Source: NHTSA New Car Assessment Program (NCAP).

Fuel economy by trim

TrimEngineDrivetrainCityHwyCombined
Q703.7L 6-cylRear-Wheel Drive182521
Q705.6L 8-cylRear-Wheel Drive162419

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

Before you buy

Useful next checks

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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.

2018 Infiniti Q70: frequently asked

What does the complaint record show for the 2018 Infiniti Q70?

Owners filed 4 NHTSA complaints about the 2018 Infiniti Q70. 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 2018 Infiniti Q70?

The most-reported problem areas are Air Bags (75% of complaints) and electrical system (25%).

How many recalls does the 2018 Infiniti Q70 have?

1 recall has been issued that affect the 2018 Infiniti Q70, covering components such as power train. 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 2018 Infiniti Q70 get?

The EPA rates the 2018 Infiniti Q70 between 19 and 21 mpg combined, depending on trim and drivetrain.