2015 Infiniti Q50 Transmission and drivetrain Problems
- Complaints
- 39about this part
- Share
- 31%of 126 total for the year
- Median mileage
- 80,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 39 complaints about the transmission and drivetrain of the 2015 Infiniti Q50, 31% of the 126 complaints for this model year. Where a mileage was given, the median is 80,000 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The transmission speed sensor has failed needs a new valve body. It seems like a very common problem with this car and it’s a $3000 fix according to my mechanic. I think there needs to be a recall issued considering everybody on this website is reporting the same problems.”
NHTSA complaint #11731441, filed 2026-04“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.”
NHTSA complaint #11606722, filed 2024-08“My car would not accelerate over 40 mph randomly after work. Once i noticed and tried to shift to a lower gear the car did not shift gears at all. When these things first happened there was no indicator lights on. The next morning the check engine light came on and the code pulled was P0720. After finding a repair shop to look further into the issue I was advised the car needed a new transmission to fix the issue. …”
NHTSA complaint #11548342, filed 2023-10“i’m reporting issues with the valve body on a 2015 Q50. I have had to replace the valve body already at cost of $1700. Many others have had same issue as this is a common defect with the TMC part. This needs to be addressed as a recall.”
NHTSA complaint #11681660, filed 2025-08“My car pause and jerks then stops. This is the second time this has happened after being fixed. The mechanic said they had a recall on the 2016 models for this but not the 2015 but had to correct many of the 2015 models. The check engine light came on after it stopped. I was on the interstate the last time when it stopped. I am afraid that it might happen again without any warning. This is a life threatening defect that Infiniti needs to correct asap.”
NHTSA complaint #11405283, filed 2021-03Related recalls
- 24V470000Jun 21, 2024Nissan 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…Covers: Infiniti Q50 2014–2018, Q70 2014–2019, Q70 Hybrid 2014–2018 +3 more
Related service bulletins
- 10168892Nov 22, 20192014-2015 Q50; MIL ON WITH DTC P0720 AND MAY HAVE HARSH SHIFTING AND/OR LACK OF POWER SERVICE INFORMATION If DTC P0720 OUTPUT SPEED SENSOR is stored, follow the diagnostic…
- 10149806Oct 12, 2018TRANSMISSION & ENGINE AUTOMATED DATA COLLECTION AND DIAGNOSTIC REPORTING SERVICE INFORMATION To support proper diagnosis and to promote Fixed-Right-First-Time ? Infiniti may…
- 10192640Sep 15, 2015SERVICE INFORMATION If the glove box is removed for any reason (for example, installing an accessory kick plate, replacing an in-cabin microfilter, etc.), verify the trunk…
- 10192630Aug 20, 2015SERVICE INFORMATION For QX60 Hybrid Vehicles, go to page 4. Q50, Q70, and M35 Hybrid Vehicles The internal combustion (IC) engine in the Q50, Q70, and M35 Hybrid vehicles is…
- 10192616Aug 6, 2015SERVICE INFORMATION The information in this bulletin is provided to help ensure correct diagnosis and repair of fluid leaks. All fluid leaks, when properly diagnosed, should be…
- 10192611Jul 29, 2015IF YOU CONFIRM All of the following: The FCW (Forward Collision Warning) malfunction is ON or reported to have been ON, and DTC C1A27 (ECD POWER SUPPLY CIRCUIT) is stored (Past…
- 10192523Feb 2, 2015IF YOU CONFIRM A power window auto-up does not work for one or more power windows. ACTION Replace the left front (driver) door finisher with the new one listed in the Parts…
Transmission and drivetrain: other model years
Other parts of the 2015 Infiniti Q50
28 complaintsVehicle speed control
21 complaintsAir bags
19 complaintsOther or unknown
18 complaintsElectrical system
17 complaintsBrakes
12 complaintsEngine
9 complaintsExterior lighting
3 complaintsFuel system
3 complaintsSeat belts
3 complaintsSeats
3 complaintsElectronic stability control
2 complaints
← All problems reported for the 2015 Infiniti Q50
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology