Infiniti Q50 Complaints

514 consumer complaints on file.

#11773407October 24, 2026
POWER TRAIN, STEERING
There’s something wrong with the steering and I believe something wrong with the powertrain that’s what it’s stating to contact the dealer
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771968October 18, 2026
STEERING
ISSUE 1: On [XXX], I was driving my vehicle ( License Plate [XXX], Vin# [XXX], Infinity 2017 Q50 Sedan, purchased in 2020 at Infiniti of Massepequa) on [XXX] ( a very busy highway on Long Island) traveling East.Suddenly the steering wheel locked and I could not turn the wheel. I was going straight on [XXX], and I tried to steer right and could not turn the wheel. Ater a minute I was able to force the steering wheel, against resistance, to the right and veered into the middle lane of the next cross street. I then had to back the car up at an angle in order to clear the next left turn. This enabled me to park on the right side curb while forcing the wheel to turn to the right. I needed to get my vehicle out of a busy street to safety. I turned the car on and off to check if the steering wheel unlocked and it remained locked. I was unable to drive the car so I called AAA and was towed to Infinity of Massepequa. I was told that I needed major work on the steering wheel system that will cost $5,605, parts and Labor. My car is a 2017 with only 50,000 miles on it. The 2014-2016 Infinity Q50's DAS systems were recalled for this exact steering problem. I asked the parts department about this recall and was told that my year car was not recalled. Given the frightening and dangerous incident and low mileage on the car, I think a recall is required on the 2017 model as well, given this harrowing experience. ISSUE 2: In December 2024 I paid $1,590 to repair the leaking sunroof on the Q50. When towed on [XXX], I mentioned ito the dealership that I still had leaking water in the car, again, a common problem with this infiniti model . I was told that they only repaired 2 of 4 drains originally at that time and repairing the other two was required and would cost an additional $1000-$2000. Again a product issue with this model Infiniti Q 50, on low mileage car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11766217September 22, 2026
AIR BAGS
Systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11766008September 21, 2026
ENGINE, POWER TRAIN, VEHICLE SPEED CONTROL
In August 2026, while driving, the vehicle suddenly lost acceleration and engine power and would only travel at a very slow speed. The check engine light came on. The driver had to safely stop, turn the engine off, and restart it. After restarting, the vehicle temporarily regained acceleration and normal speed. This problem has occurred more than once and creates a serious safety risk in traffic, especially when merging or crossing intersections. An INFINITI dealer inspected the vehicle and advised that the problem may involve the turbocharger system, with repairs estimated at approximately $4,000. INFINITI Consumer Affairs was contacted about the loss of acceleration but declined financial assistance because of the vehicle's mileage/warranty status. The vehicle was previously an Enterprise rental vehicle and had prior INFINITI service history. The vehicle is available for inspection. I am requesting investigation of this sudden loss-of-power condition.I am aware that NHTSA Recall 21V-234 / INFINITI Campaign R20C5 involved certain 2021 Q50 vehicles and an ECM software condition associated with a warning light, reduced power, and possible engine stall while driving. My VIN currently shows 0 unrepaired recalls, but I am requesting verification of whether this campaign ever applied to my vehicle and, if so, when and at what mileage the ECM reprogramming was completed. My vehicle is now experiencing a Check Engine Light and sudden loss of acceleration/power while driving, which temporarily improves after the engine is shut off and restarted. I am also aware of INFINITI TSB ITB22-038D/EM22-007D concerning turbocharger replacement procedures for 2016–2024 Q50 vehicles equipped with the VR30DDTT engine. I request investigation of whether my present loss-of-power condition is related to the ECM, turbocharger/boost system, or another safety-related defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11764255September 14, 2026
VISIBILITY:SUN/MOON ROOF ASSEMBLY
I was parked in my garage getting ready to start my car and the glass in my moonroof spontaneously shattered. There was no object that hit it because I was in my garage. It sounded like a gunshot. The glass flew upward and the glass looks like it shattered into a little volcano on the edges.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762666September 8, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2021 Infiniti Q50. The contact stated that while driving approximately 70 - 80 MPH and attempting to accelerate, the vehicle would accelerate but failed to exceed 10 MPH. The accelerator pedal had to be depressed to the floorboard for the vehicle to accelerate; however, the vehicle still failed to exceed 10 MPH. During the failure, the check engine warning light was temporarily illuminated. The contact intended to have the vehicle towed to the dealer, which was called and informed of the issue. The dealer informed the contact that the VIN was not included in NHTSA Campaign Number: 21V234000 (Engine and Engine Cooling). The failure mileage was approximately 82,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761550September 2, 2026
STEERING
I took my car in for a steering problem to the dealer. The car is weaving out of the lane when it hits uneven pavement. They looked at the car and did a wheel alignment. After that I noticed that the car was still weaving on uneven pavement. After some months I took it back to another dealer. They again tried to do an alignment. I told them to look deeper because that didn't fix it last time. After I pushed them to keep looking a senior tech came back and said it was the steering assembly and that he just fixed one like that. My car was just out of warranty but the dealer would not honor it. So I started looking for the part at a cheaper rate then they quoted me and i found one. I asked the dealership if they would do the labor if I get the part. When talking to another service representative at the dealer he said that he had the same exact car and it almost takes him out the lane. So, I was informing this guy about the problem he had with his car and he worked at the dealer. There needs to be a recall on these cars before someone is hurt badly. It is definitely a manufacturing problem and probably why they stop making the car. Infinity needs to be held accountable for selling people these cars with this defect. I bought my car used and during that process i saw many cars that had rim rash probably cause people are losing control of the cars and hitting curbs. The is a nationwide safety hazard that needs to be rectified.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11756528August 12, 2026
POWER TRAIN, UNKNOWN OR OTHER
While operating the vehicle, the transmission suffered an abrupt failure resulting in Diagnostic Trouble Code (DTC) P0720 (Output Speed Sensor Circuit). Further diagnostic inspection revealed a complete internal failure of the integrated valve body assembly, which houses the Transmission Control Module (TCM), solenoids, and output speed sensors. The failure caused an immediate loss of gear selection, restricting the transmission to 3rd gear ("limp mode"). Attempting to accelerate beyond 3rd gear causes violent vehicle shaking, severe hesitation, and an inability to maintain traffic speeds due to the TCM losing signal input from the speed sensors and solenoid circuits. This total valve body/TCM failure creates a critical safety hazard. Sudden restriction to 3rd gear without warning on highways or during turn movements leaves the vehicle unable to match surrounding traffic speeds, creating an immediate risk of a rear-end or side-impact collision. The vehicle has been strictly maintained according to manufacturer schedules. Because Nissan/Infiniti designed the TCM and speed sensors as an integrated unit inside the hydraulic valve body, a sensor failure requires replacing the entire valve body/TCM unit—a repair quoted at over $3,000, with complete transmission replacement exceeding that cost. This valve body/TCM failure mode is widely documented among Infiniti Q50 owners sharing the RE7R01A 7-speed automatic transmission platform, indicating a widespread electronic and mechanical defect that threatens driver safety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753934July 31, 2026
AIR BAGS
The contact owns a 2017 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with air bags failure. The contact was informed that the air bag needed to be replaced. The vehicle was not repaired. The contact was informed of an unknown recall; however, the VIN was not associated with a recall related to the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The contact stated that the vehicle failed to pass State Inspection due to the failure. The manufacturer was not made aware of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753215July 28, 2026
STEERING, SUSPENSION
The Steering Assembly is faulty in the vehicle. I purchase this vehicle as a used Certified preowned vehicle from Hart Infinity in Connecticut. I looked at several one year old Infiniti's as I had an accident in my 2019 and it was totaled. As I was looking, I notices that several of the vehicles had curb rash on the front rims as well as the one I purchased. After I bought mine in July 2024 I noticed that on uneven pavement the vehicle would pull left and right an I had to fight the steering wheel to keep the car in my lane. My safety was at risk because if I didn't maintain control I could crash into someone. I did some research on some sites and there was several people talking about the same issue. Some thought it was the run flat tires. I replaced my tires and still had the problem. Others thought it was the sway bar. I replaced mine with an after market to try to fix and that didn't fix it either. So then I went to the dealership and they checked it and did an alignment. It didn't fix the problem. After doing more research I found that a lot of people was having this issue. Since I had the rim rash on the rim when I purchase I thought maybe someone had an accident and something else was wrong like the lower control arm. I took it back again to another dealer and they said the control arm was fine and that I they did an alignment. I told them that it wasn't the issue that they did that last time and asked them to keep looking. They service rep said he talked to his head mechanic and he said that he just fixed that issue on another car and it was the steering assembly. Now the dealership is trying to charge me $5000 to repair the steering assembly and it was an issue with the car from purchase. After doing more research I found that they had issues with the steering assembly in previous models and there have been recalls. Please hold Infiniti responsible for putting people safety in jeopardy. They should repair a major flaw with there vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11753148July 27, 2026
STEERING
After starting the car the steering wheel jumps off center and the steering is all over the place. have to start the car again and the steering wheel jumps the other direction. I strongly suggest this is exactly what the June 13, 2016 NHTSA campaign number 16V43000 the software may reduce steering ability and increase risk of crash.the direct steering system my experience an error at vehicle start up altering the vehicle steering responsiveness and turning radius. Exact problem with this car. This car has been recalled for the driveshaft break NHSTA 24V470000
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751944July 21, 2026
STEERING
DIRECT ADAPTIVE STEERING EXPERIENCEING AT START UP ALTERING THE VEHICLES STEERING AND RESPONSIVENESS AND TURNING RADIUS DOES NOT WORK AND IS INCREASING THE RISK OF A CRASH. VERY UNSAFE TO DRIVE. THERE IS A RECALL 16V430000 ON THIS VERY PROBLEM. HAVE BEEN TOLD BY DEALERSHIP AND NISSAN MOTORS THAT MY CAR IS NOT ON THE RECALL AND I WILL HAVE TO PAY MY SELF TO GET FIXED AND TO SEE IF THAT IS THE PROBLEM. READING THE NHTSA CAMPAIGN NUMBER:16V430000 THIS IS THE EXACT PROBLEM WITH THE DIRECT ADAPTIVE STEERING SYSTEM ON THIS CAR. I BELIEVE THIS SHOULD BE COVERED BY THE RECALL!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751616July 20, 2026
ENGINE
My 2016 Q50 was driving strangely, but no indicator light came on the dashboard. I took the vehicle to the dealer where I purchased it and was told that the engine is dying. No other information was given to me. I called the service advisor asking what in particular was wrong with my car, but he said he wasn't sure. I took issue with the fact that my engine died, and no warning lights what-so-ever showed on the dash. I would only take my car to the dealer for repairs, maintenance and oil changes. I also learned that cars should not go beyond 3,000 miles for an oil change, but for some reason Infiniti oil changes were 10,000 miles in between. I believe this could be a reason the engine died...there was never an oil change indicator light illuminated as well. I feel that Infiniti is responsible for an engine dying on a vehicle with less than 100,000 miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11751084July 17, 2026
AIR BAGS, SEAT BELTS
I am reporting a potential safety defect involving my leased 2023 Infiniti Q50, VIN [XXX]. In 2024, I brought the vehicle to the dealership because the passenger seatbelt warning activated even when the passenger seat was unoccupied. I was told the condition was caused by objects triggering the passenger seat sensor, and no further repair was performed. On XXX, I returned to the dealership for a routine oil change and again reported that the seatbelt warning problem was continuing. I was initially informed that a component in the passenger seat required replacement and that the defect affected the passenger-side airbag system. I was later informed by the dealership that the defect affects both airbags, not only the passenger-side airbag. The dealership advised that the required replacement part must come from Japan. As of XXX, the part has not arrived, the repair has not been completed, and the vehicle remains awaiting the necessary part. My concern is that the airbags may have been inoperative or compromised for an extended period after I first reported the related warning issue in 2024. My wife and daughter drove and rode in this vehicle believing its safety systems were functioning properly. Had the vehicle been involved in a collision, they could have faced a substantially increased risk of serious injury. I am submitting this complaint so NHTSA can investigate whether this is an isolated defect, a dealer diagnostic failure, or part of a broader safety problem affecting other 2023 Infiniti Q50 vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11750490July 15, 2026
VEHICLE SPEED CONTROL, POWER TRAIN
While driving my 2015 Infiniti Q50s, the transmission suddenly suffered a catastrophic electronic failure, causing the vehicle to immediately drop into "limp mode." This resulted in a sudden and dangerous loss of acceleration while operating in traffic. A diagnostic scan revealed trouble codes P0500 and P0720 (Output Speed Sensor circuit). However, following Infiniti's official Technical Service Bulletin (TSB ITB19-040), the actual failure was the Transmission Control Module (TCM), which is permanently integrated into the transmission control valve body inside the transmission. Because the speed sensor cannot be replaced independently of the integrated module, I was forced to pay out-of-pocket to replace the entire transmission control valve body assembly and have a dealership program the new unit. This is a widely documented, premature failure on this vehicle platform that creates an immediate highway safety hazard when the vehicle drops power without warning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11749209July 8, 2026
ENGINE, VEHICLE SPEED CONTROL
Early turbo failure should be extended to newer vehicles not only up to 2018. I am experiencing turbo failure and there is no extended warranty for this repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11748898July 7, 2026
AIR BAGS, SEAT BELTS
The contact owns a 2018 Infiniti Q50. The contact stated while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to the dealer, where the contact was informed that the front passenger seat and passenger seat belt needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 34,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746343June 24, 2026
STEERING
steering feels loose and jumpy. dealer said it was mis-aligned, but that didnt fix the issue. car feels disconnected from road at times and making it hard to keep straight.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745913June 23, 2026
STEERING
DAS issue that I have been dealing with for two months now, issue is still not resolved even after taking out a personal loan for 6k to fix the modules at Douglas Infiniti, waited weeks for the modules, they replaced the modules, did the calibration but a new issue is happening where I'm losing control for a split second and the car would either pull to the left or right egregiously. I took it to back to Douglas Infiniti for the issue, they found code C13E9-00, cleared the code and did the calibration again only for the issue to happen again once I was close to getting home. Spoke with Martin the advisor and he is saying that he thinks its an issue with the rack and pinion and not a software issue. I bought the rack and pinion from infiniti's wholesale direct website, the rack and pinion came from Infiniti of Winston Salem, so it's an OEM rack and pinion, he said I should take it back to the shop where I got it installed and have them check their work, even though they were able to calibrate the system once the new modules were installed, certify their work and give me back to the keys to the car only for the issue to happen again. Took it back to DriveWorks Auto Center in Union, NJ and they couldn't find any issue with the rack & pinion, said I need a wheel alignment thought, went and got a wheel alignment. Driving home from work yesterday on [XXX] going down the hill and the car steering went out momentarily and the car started pulling to the right, straightened the wheel and now I was swaying to the right. I have a case open with Infiniti Consumer Affairs INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11746066June 23, 2026
AIR BAGS
Air bags failed. Auto has 28,000 miles and has no accidents. Warning light showed that airbags were not working June 2026. Auto brought to dealer, and it is a very costly job to fix. Auto just out of warranty in years not miles. Infiniti in previous years has had a recall on their cars, but not my VIN number for failing airbags. This is a manufacturing defect, and it should not have to cost me. Infiniti has offered a partial discount.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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