Infiniti Q50 Complaints (2015)

130 consumer complaints on file.

#11663166May 27, 2025
POWER TRAIN
Transmission intermittently will not shift to the next gear. Sometimes will not shift from first gear, other times will not shift from 3rd gear. Sometimes no issue at all. It is intermittent and no warning to when the issue might happened. It happens when trying to accelerate and has put me in an unsafe situation trying to accelerate on the highway or around town.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655792April 21, 2025
AIR BAGS, POWER TRAIN, STEERING
Air bag light suddenly said “passenger airbag off”. Don’t have to brake to switch gears. Steering at times feels a bit off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655236April 17, 2025
POWER TRAIN
Transmission failure without warning!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649578March 20, 2025
POWER TRAIN, VEHICLE SPEED CONTROL, STEERING
Transmission, Transmission Valve body, speed sensors. After transmission shifting issues while traveling the interstate I had to have the car towed to the dealership. After the multi point inspection was performed serveral recommended itmes related to the ongoing performance and SAFETY of the vehicle listed below: Transmission $10,446.65 Transmission Valve Body $3693.92 The diagnostic code P0720. Attached is the service bulleting stating they know this will happen and when it does here's how to fix it. Yet they have never recalled the defective transmission. When I contact Infiniti consumer affairs they simply say that they cannot help me because the vehicle does not have warranty. If i had warranty then I would not be reaching out to them for assistance in replacing the transmission.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649291March 19, 2025
POWER TRAIN, VEHICLE SPEED CONTROL
While driving on the interstate and coming over an overpass there was unavoidable debris located in the road. Immediately after passing over the debris there was a loud noise followed by jerking and the RPM's revved up almost like the car was in neutral. I let up off of the accelerator and then tried to accelerate again. The car would not go faster than 30mph and will not shift out of 3rd gear. I had the car towed to the dealership and the diagnostic codes reflected vehicle speed sensor and there was no physical damage that was visible under the car. I was told that the problem was in the transmission and that it would need to be changed and given an estimate that totaled over $10,000. I was also told by the service advisor that this is a known issue with the Infiniti Q50. After doing researching this a common problem and the consumer is having to pay out of pocket if the warranty has ended. This incident could have ended badly while doing 70mph on the interstate and the car just quits moving. With all of the complaints that I have read over in regards to the transmission issues yet no action has been taken to investigate this problem. It is obliviously a manufacturing issue and the consumer should not have to pay out of pocket for defective transmissions. This luxury car was not a cheap purchase. Very disappointed that with so many cases an investigation has never been done. Infiniti should be held accountable and a recall should be issued for this problem. I will not stop until I can get through to someone that can help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647122March 8, 2025
POWER TRAIN
Valve body goes bad after a few hundred miles every time. fluid enters the tcm causing it to go bad. the tcm could be welded back on but dealer just replaces the whole transmission
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628333December 2, 2024
POWER TRAIN
I received a recall notice (folded information card) from Infinity in the mail in about August 2024 regarding Recall NHTSA 24V-470-R24A7. I also received an email from Infinity on August 28, 2024 with Subject "Your Q50 is due for Important recall repairs " and noted it stated Recall Code R24A7/R24A5: NHTSA 24V-470: Recall Description Q50/Q70 Prop Shaft. I contacted Infinity to schedule the repair and received a confirmed email service appointment for October 4th 2024. When I arrived at the dealership the service department told me they did not have parts but would change my oil and do other service for a fee. All I wanted was the recall fixed. In total I've been to the dealer 3 times and been always told that they have not received parts from the manufacturer. Today I called Infinity Consumer Affairs Department at 1-800-662-6200 and spoke to "Dennis". He did little but talk in circles and did nothing to provide information and when the recall would be fixed. Since I was getting no information and he was not listening or helping I told him I was ending the call and calling the NHTSA, which I did and spoke with Tyronda. Confirmation number for call she gave me is [XXX] for our call. After my repeated efforts and complaints, Infinity appears to have no interest on fixing the vehicle recall they first advised me of in August, only seemingly "going through the motions" as slow as possible. My car is not fixed after about 4 months and they have done nothing to contact me as to when it will be repaired. That is my complaint 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
#11625116November 14, 2024
STEERING
Sitting in parking lot when a malfunction warning popped up with the dashboard lit up. Steering wheel, traction control, front and rear collision control and chassis system control system error. Had car towed to the dealership to find out it was DAST Steering control units. EPS/DAST 3 DTC C13D5-00 Control module, Chassis Control DTC C1B90-00 DAST System, DAST 1 DTC C13E9-00 Booting Angle Processing, DAST 1 DTC C13EB-00 Booting Angle Processing, DAST 2 DTC C13EB-00 Booting Angle Processing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621458October 23, 2024
AIR BAGS
Upon driving when purchased the Engine Light for the Air Bags illuminated. Upon researching the issue the problem seems to be a common problem for vehicles of this make and problem. 90% of the time requiring the owner to take the vehicle to the dealership.Since it is a trend and ongoing I wanted to report the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11616077September 23, 2024
AIR BAGS
I was in a car accident during the summer, I was driving at speed limit when I came out the curve the car started sliding, and I went off the road and roll over at 4 times and ended up in a ditch upside in some water, but NO AIRBAGS went off I have pictures showing so, I try to tell the dealer I bought it from Car Max and even my insurance but no one seem to care but now I found this page. I also had a police on site and no ticket was issued to me since no proof of me driving recklessly I did have a police report but I can’t find it since it was back in the summer
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11613558September 9, 2024
VEHICLE SPEED CONTROL
P0500 vehicle speed sen/cir P0720 a/t veh speed sen/ circuit-or- output speed sensor P1574 ascd vhcl apps sensor - or lcc vhl spd sen (icc models) My safety was put at risk when the vehicle hesitated and stop changing gears while traffic was behind me. The vehicle was inspected by a local dealership which was Nissan and also Infiniti including a transmission shop named ammco. There were no warning lights that would indicate the vehicle was failing until April the 5th
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11606992August 7, 2024
ENGINE
Valve body on my car and friends have gone bad, it’s a known issue within the Infiniti vq37 community
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11606710August 6, 2024
VEHICLE SPEED CONTROL
The valve body went bad at 164k miles. Im not the only one. On all the forums and fb groups im on, there are hundreds of valv bodys going bad on the q50s for this general area of the year. On my facebook group i have seen 4 people in the past 2 days with theirs going out. Code p0720. Mine is being hauled to the shop right now so i dont have paperwork of replacement at this time for a few days
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11606722August 6, 2024
POWER TRAIN
Transmission valve body failed and is a common problem for 2014-2016 I was on a busy road and the car threw check engine light and wouldn’t accelerate any more. I risked my safety and others because I was stopped in the middle of the road and lots of commuters passing by and the vehicle was fully registered and inspected by the state prior that happened but it’s a common problem that you’ll never know when it will fail.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11606745August 6, 2024
POWER TRAIN
Valve body went out with 89k miles and had to get transmission replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586096April 30, 2024
POWER TRAIN
The valve body/TCM shorts out on the car unexpectedly and can happen at any time causing the car to be unable to go past third gear. This is an known problem with 2014-17 Infiniti Q50 & there is a service bulletin issued by Infiniti associated with this problem published in November 2019. This vehicle was inspected by Infiniti dealership and they confirmed the issue. There was no warning light or prior to this event. After the failure this codes popped up P0720. Repair was ~$3500
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586114April 30, 2024
POWER TRAIN
The contact owns a 2015 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The contact was able to drive the vehicle off the highway and park the vehicle. The contact stated that the failure occurred while the contact was driving on a busy highway. The vehicle was towed to the dealer where it was diagnosed with transmission valve body failure. The contact was informed that the transmission valve body needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 74,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583692April 17, 2024
STEERING, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Power steering failed while driving in parking lot looking for parking spot. Unable to turn wheel without hitting parked car. I was able to drive to end of the lot where there were less cars. Noticed that I was able to turn wheel so long as didn’t step on brakes. The steering wheel was also off alignment. This happed on a Saturday evening, next day car was fine all the warning were off. Spoke to service person explained what happened. He basically said if the car is running fine they can check it out but may not find the problem. Since the car was running fine until it wasn’t. Car was parked in garage turned on the car all warning lights go on. Made appointment for 4/3/24 drove car to dealership which is not to far. The warning lights still on and no power steering. Analysis many DTC codes found related to this system:B2512 4WAS SIG: C1B9000 DAST SYSTEM: C1138 4WAS CIRCUIT & C1A04 ABS/TCS/VDC CIRC. Correction Recommended to perform DAST calibration first before performing further diagnosis. COST $539.15 . They also did Multi-Point Inspection items requiring immediate attention Engine Air Filter COST $94.99 GRAND TOTAL $641.64 out of pocket. 4/3/24 picked up car. On that evening drove the car and as I’m pulling up on drive way power steering goes out again. I managed to get the car in garage. Once I’m in push button to close garage doesn’t work and car dies no power at all. Able to get car started by playing with battery cables. On dealership notes car was there 30 miles ago. Now they say wrong battery size. That battery was replaced by them on 2/28/22. Also the battery just past Multi-Point 2 days ago.New battery cost $232.78 now out of pocket $874.42.This is now 4/10/24. Drove that evening and front splash guard fall off had to tie wrap to hold whatever pieces are left. Took it to dealership they took no responsibility. I will need to replace it. I have all my receipts from them they are the only ones who have worked on my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11582897April 14, 2024
POWER TRAIN
My engine light came on at 115,946 miles causing my vehicle not to accelerate or shift properly which could have resulted in a accident. The vehicle was diagnosed at local Nissan dealership with code P0720 and P0500 stating vehicle need a transmission. Prior to this diagnose this vehicle was diagnose twice by a Nissan and Infiniti dealership concerning the shifting and acceleration issues but could not duplicate the issue at the time. I see where numerous car buyers are stating they’re having the same issues with the Infiniti brand at low miles and high miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11580954April 3, 2024
STRUCTURE:BODY
the miles on the car were changed and trying to sell without the information aswell as the car is trying to get sold as a salvage title car without dealer license on facebook but they tempered with the miles on the car making it look like it only has 30k when in reality it was last reported to have 180k
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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