Most common 2015 Infiniti Q50 problems
Share of the 126 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Infiniti Q50 complaints by model year
Best Q50 years: 2021, 2016, 2023. Years to avoid: 2014, 2015. Compare all years →
2015 Infiniti Q50 recalls (3)
Power train › Driveline › Driveshaft
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.
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.
Steering › Automated/adaptive steering
Nissan North America, Inc.'s (Nissan) is recalling certain model year 2014-2016 Infiniti Q50 vehicles manufactured December 26, 2012, to December 11, 2015, and Infiniti Q50 Hybrid vehicles manufactured December 10, 2012, to December 17, 2015.
Remedy: Nissan will notify owners, and dealers will reprogram the Direct Adaptive Steering ECU software, free of charge. The recall began on August 12, 2016. Owners may contact Nissan customer service at 1-800-647-7261.
Air bags › Sensor › Occupant classification
Nissan North America, Inc. (Nissan) is recalling certain model year 2016-2017 Nissan Maxima, 2013-2016 Nissan Altima, NV200, LEAF, Sentra, and Pathfinder, 2014-2016 Nissan NV200 Taxi, Infiniti QX60, QX60 Hybrid, and Q50 Hybrid, 2014-2017 Nissan Rogue and Infiniti Q50, 2015-2016 Nissan Murano, Murano Hybrid, and Chevrolet City…
Remedy: Nissan will notify their owners. Chevrolet City Express owners will be notified by General Motors. Dealers will reprogram the Air Bag Control Unit (ACU) and OCS Electronic Control Unit (ECU) in Altima, Maxima, Murano,…
What 2015 Infiniti Q50 owners say
Transmission & drivetrain all 39 →
The contact owns a 2015 Infiniti Q50. The contact stated that while driving approximately 50 MPH, the vehicle began to overheat and smoke was present coming from under the hood. After stopping to inspect the vehicle the contact opened the hood and flames were present in the engine compartment. The contact immediately extinguished the flames using water. The vehicle was later towed to the local dealer. The cause of the failure was not yet determined. The contact indicated that prior to the fire the vehicle had also experienced transmission shifting failures and the front driver's side and passenger side seat belts were locked in the retracted position and could not be used. The cause of the failures was not determined. The manufacturer was not notified of the failures. The failure mileage was 80,000.
The contact owns a 2015 Infiniti Q50. While driving at various speeds, the transmission was slow to shift. The vehicle failed to properly accelerate while depressing the accelerator pedal, and the check engine warning light remained illuminated. The vehicle was taken to a local transmission mechanic to be diagnosed, and it was determined that the gear ratio and speed sensor inside the transmission valve body were faulty, and that the valve body needed to be replaced. The valve body was replaced, and the failure was repaired; however, one week later, the failure reoccurred. The vehicle was taken back to the mechanic, and it was informed that the transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were not contacted. The failure mileage was 99,000.
Steering all 28 →
I was driving and tried to turn but had lost complete control of the steering and hit the curb infront. Luckily i was only going 5-10 MPH so the impact was not terrible. My biggest concern is a lot of times my mother drives that car who is permanently disabled in one hand so I can only fear what might happen if she was the one driving the car.
It seem as the chassis control system continues to fail even after I had the entire system replaced at Austin Infiniti. It seem as it is electrical that doesn't occur all the time but occurs randomly even while driving. It make the steering lock up after a stiff pull at random times then cause all the other system to act up such as the collision or lane departure. It states error code chassis control system and Infiniti each time after taking it back for a warranty job they decline after having footage that I take when the error occurs with my steering wheel in a different angle for forward driving. This is why I am writing this if it can resolve others who have ran into this occurrences when Austin Infiniti has told me they have ran into this before for another customer but luckily they car was under the manufacturer warranty and mine carshield. …
Speed control & acceleration all 21 →
The contact owns a 2015 Infiniti Q50. The contact stated that while driving at highway speeds, the vehicle inadvertently slowed down. The vehicle failed to accelerate. The check engine warning light was illuminated. The vehicle was towed to the local dealer where it was diagnosed that a valve body replacement was needed. The vehicle was not repaired. The manufacturer was contacted, and the contact was informed that the vehicle was not covered under warranty. The failure mileage was approximately 56,000.
When on the highway my transmission slipped then went out and wouldn't accelerate, without any warning or sign of trouble beforehand. I scrambled to pull over and it started to accelerate again. It struggled to shift in 1st gear and second but despite going over 40 mph it would not shift to third gear. I could feel it slipping/sputtering when letting up on the accelerator and jerk when I press on the brakes. The engine will continue to rev high at lower speed. My check engine light came on and gave two codes, P0720 and P0500. I took this to my mechanic and he advised the valve body that houses the AT speed sensor be replaced and I likely need a new transmission. …
2015 Infiniti Q50 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.5L 6-cyl hybrid | 7-speed automatic | RWD | 29 / 36 / 31 |
| 3.5L 6-cyl hybrid | 7-speed automatic | AWD | 28 / 34 / 30 |
| 3.7L 6-cyl | 7-speed automatic | RWD | 20 / 29 / 23 |
| 3.7L 6-cyl | 7-speed automatic | AWD | 19 / 27 / 22 |
EPA ratings. Class: Compact car.
Frequently asked questions
Is the 2015 Infiniti Q50 a good car?
Based on 126 owner complaints filed with NHTSA, the 2015 Q50 rates use caution: 1.5× as many complaints as a typical year of the Q50 at the same age. It is one of the Q50 years we suggest avoiding. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2015 Infiniti Q50?
The transmission & drivetrain — 39 complaints, 31% of all complaints for this model year, most often about automatic transmission. Next are the steering (28) and speed control & acceleration (21).
How many recalls does the 2015 Infiniti Q50 have?
There are 3 recalls for the 2015 Infiniti Q50, the most recent from June 21, 2024 (driveshaft). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Infiniti Q50?
The best years by complaints, compared at the same age, are 2021, 2016 and 2023. Years to avoid or approach with caution: 2014 and 2015. See the full Infiniti Q50 years comparison.
At what mileage do 2015 Infiniti Q50 problems happen?
The median mileage reported in complaints is about 28,000 miles; 67% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.