Infiniti Q50 Complaints

514 consumer complaints on file.

#11538467August 14, 2023
POWER TRAIN
$2000+ to fix but not recalled for Yet Way too more than thousand Infiniti Owners has had the same issue with Valve Body Code:P0720
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11537944August 11, 2023
ENGINE AND ENGINE COOLING, POWER TRAIN, SEAT BELTS
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.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11534456July 25, 2023
POWER TRAIN, ELECTRICAL SYSTEM
The contact owns 2017 Infiniti Q50. The contact stated while driving 40 MPH, the vehicle lost motive power and shut off without warning. The contact was not able to restart the vehicle and had the vehicle towed to storage lot. The vehicle was not diagnosed. The dealer was contacted and stated that the VIN was not under recall. The manufacturer was contacted and stated that the vehicle was not under recall and did not provide any assistance. The failure mileage was 118,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11532224July 14, 2023
BACK OVER PREVENTION
The contact owns a 2018 Infiniti Q50. The contact stated that the back-up camera was flickering while in use. The contact stated that over time, the back-up camera screen had gone blank and failed to operate as needed. Upon investigation, the contact discovered NHTSA Campaign Number: 19V654000 (Back Over Prevention) which she linked to the failure. The dealer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 130,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530891July 7, 2023
VISIBILITY/WIPER
My vehicle's windshield washer sensor has malfunctioned as it regularly flashes a warning light indicating low washer fluid regardless of the actual washer fluid reservoir level. The persistent warning light on the dash is a constant distraction to the driver. Furthermore, a driver may become ambivalent to the warning light if another system actually malfunctions (or in the case of the washer reservoir actually being low or empty) thus creating a real safety threat. Infiniti vehicle forums as well as my independent mechanic note this problem to be fairly widespread and, according to my mechanic, is also prevalent in certain Nissan models. I brought this matter to the attention of Infiniti's Customer Care team but no action was taken to remedy the situation nor does it seem any action will be forthcoming. While this may seem to be a relatively small issue, such small issues can still result in significant negative outcomes if not addressed. Given the regularity in which this issue occurs, the manufacturer should be responsible for repairing this defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530744July 6, 2023
ENGINE, POWER TRAIN
The contact owns a 2014 Infiniti Q50. The contact stated that while driving at 45 MPH, the RPM inadvertently increased briefly before returning to normal. The check warning light was illuminated. The vehicle was taken to an independent mechanic, who determined a failure with the output speed sensor and transmission valve body. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528211June 21, 2023
AIR BAGS
Airbag sensor light stays on instrument panel due to an issue with passenger airbag sensor under passenger seat.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11525806June 7, 2023
AIR BAGS
The contact owns a 2016 Infiniti Q50. The contact stated that while the vehicle was parked, the air bag warning light illuminated. The contact related the failure to NHTSA Campaign Number: 16V244000 (Air Bags). The vehicle was taken to the dealer, and the contact was informed that the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 169,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11524450May 30, 2023
VEHICLE SPEED CONTROL, ENGINE, ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523891May 25, 2023
POWER TRAIN
My car has 60,000 miles on it and multiple mechanics as well as the Infiniti dealership tell me it needs a new transmission. $8,000. It will not shift above 2nd gear. I took the valve body and manifold out of the transmission and was surprised to find that the output speed sensor plug is actually a dumby plug that connects to nothing. I've had cars with hundreds of thousands of miles on them still driving with the same transmission they were born with. I've rebuilt a lot of engines, but never had to replace a transmission, especially not after 60,000 miles. Any, I searched the internet and noticed that it's a very common problem with this vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11522300May 16, 2023
POWER TRAIN, VEHICLE SPEED CONTROL
The speed sensor on car seems to have failed unexpectedly while driving over a bridge. The car would barely move and could have become a dangerous situation for multiple people had it been typical traffic. The issue seems to be that although the sensors are corrupted, the entire valve body or transmission must be replaced to solve the issue leaving the car inoperable. The car is currently at a repair shop. The engine light did come on shortly after. PLEASE ISSUE RECALL. https://static.nhtsa.gov/odi/tsbs/2019/MC-10168892-0001.pdf
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521720May 12, 2023
ELECTRICAL SYSTEM, HYBRID PROPULSION SYSTEM
The contact owns a 2014 Infiniti Q50 Hybrid. The contact stated while driving 50-55 MPH, the vehicle stalled inadvertently, and nearly collided with a semi-truck. Several messages indicating a malfunction, and a message indicating that the hybrid battery was overheating were displayed. Additionally, several unknown warning lights were illuminated. The contact was able to veer to the side of the road. The contact stated that the vehicle restarted but failed to respond upon depressing the accelerator pedal. The contact stated that unknown warning lights were illuminated, and several messages displayed. The vehicle was towed to the residence. The dealer was not notified of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure and advised the contact to take the vehicle to the dealer for a diagnostic tests. The failure mileage was approximately 139,362.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11519169April 26, 2023
UNKNOWN OR OTHER
I have repeated incidents of the car losing power while driving. The first time this happened was in 2018. Under the manufacture warranty both air sensors were replaced. The incident occured again in 2021. I had it towed to a dealership in Jacksonville. They were unable to repeat the failure.In 2022 it occured again. I drove the car to a Nissan dealership in Brunswick Ga. They reset some codes and the car drove ok. Today while driving I lost power again. I pulled into a parking lot and turned the car off. Once I restarted the car it drove ok. This has also occured on other occasions and seem to self correct if the car is turned off and restarted. There is no rhyme or reason to when this problem will present itself and could cause severe harm if driving in heavy traffic on the interstate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11518218April 21, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
A short in the hybrid system's fuse relay caused the air conditioning control unit and compressor to fail. This further shorted out the hybrid junction box causing the hybrid battery recharge and power management system to malfunction. Gas mileage was very adversely affected and the hybrid system would have eventually failed causing a potential safety issue where the vehicle could lose propulsion suddenly while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11517360April 17, 2023
ENGINE, UNKNOWN OR OTHER, VEHICLE SPEED CONTROL
4/16/2023 Sunday 5pm With my wife and daughter in the car, I started the vehicle in my driveway and selected Sport mode as usual. Selected reverse and backed into our turnaround then forward to the end of our driveway. Driveway is approximately 4 car lengths long with a 20 ft long apron turnaround. Almost immediately after braking at the end of the driveway while waiting for passing traffic to exit drive, vehicle suddenly accelerated and I immediately pressed the brake as hard as I could to prevent driving into passing vehicles. I could hear the tires trying to grip/spin while I was fighting to press the brake harder to hold it t back. I then panicked and selected the gear shifter to anything other than drive and it immediately did the same in reverse. After getting in into park, I immediately selected Standard mode and the vehicle performed normal afterwards. There were no warning lights or anything to indicate any issues. Previously I had noticed minor intermittent issues of high RPMs when slowing or braking while in Sport mode but it would immediately correct itself. I have not had a chance to take it for inspection as it's now Monday morning April 17. We were all very shaken. Please advise.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11517540April 17, 2023
ENGINE
My coolant reservoir kept on going empty, I took to dealer for service they replaced the radiator fan module and told me my engine was not porous. I was driving and my engine ended up stalling, turned off while I was driving in the freeway at a high speed cause me to almost lose control of my vehicle because everything stopped working. It looks like an inner rod failed possibly because of the coolant going into engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11514856March 31, 2023
POWER TRAIN
I was driving perfectly fine and i stopped at a red-light. I went to accelerate and the car wouldn't shift out of first gear and then check engine light came on. I pulled over and scanned the codes, it showed code p0500. After bringing to shop and reading thousands of different things from people who own the car online all said the same thing. Transmission valve body is shot. I almost got rear ended when i let off the gas because the engines rpms were so high casuing quick engine braking.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11513781March 25, 2023
ENGINE
2/1/2023 we took our 2018 Q50 to the Infiniti dealership and service center. The engine was having issues, increased RPMs while simultaneously experiencing loss of power/stalling. This was experienced by both my wife and I. Infiniti's determination was the Mass Air Flow Sensor and told us the issue was not covered by the platinum, bumper to bumper extended warranty they sold us due to the warranty only covering mechanical issues, not electrical. The service tech was able to get costs waived as factory warranty covered such events to 75k miles. We picked the car up on 2/8/2023. On 3/18/2023 the car was again towed to the dealership. The intermittent issue that was thought to be the Mas Air Flow Sensor and electrical, hit suddenly and with such force the car would not run whatsoever and stalled out on a very busy 50 MPH Parkway and my wife had to maneuver her way to safety with cars flying all around her. No obvious sign of electrical mass failure, lights still on, etc. On 3/24/2023 I received a call and was told the engine needed to be replaced, the cost was $32k, and that the warranty’s fine print says that the warranty will only cover up to the fair market value of the car, which they determined to be about $21k. I’m responsible for their faulty engine & poor mechanical workmanship? I was sent pictures of debris and springs sitting in the bottom of the dropped oil pan and a separate photo clearly showing a disintegrating cam shaft / lower engine area adjacent to the oil pan. Catastrophic and very avoidable failure (this is not an engine in a military vehicle or motorsports vehicle). I believe the problem was never the Mass Airflow Sensor, it was the alloys used in this area of the engine that were failing. This failure is not the first for Infiniti (have been reading forums)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11512493March 17, 2023
VEHICLE SPEED CONTROL
Speed sensor Is faulty on infiniti q50...had it replaced 9/28/22 for 3700.00 now on 3/03/23 I was told I need to replace the transmission for 7300.00 I research speed sensor it seem 2014 to 2015 infiniti q50 are having issues with speed sensor. I have read multiple complaints about this issue. It should be a recall on the speed sensor. Infiniti/Nissan know it I will never purchase a another Infiniti/Nissan vehicle again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11510930March 9, 2023
ENGINE
vehicle has porous block and lead to engine failure. many other VR30DDTT engine equipped vehicles are having the same issue some are being replace and others are not. this needs to be a major concern for nissan/infiniti as they are a fantastic brand but some of the customers of these vehicles are being left high and dry with no options
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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