2015 Infiniti Q40 Other or unknown Problems
- Complaints
- 3about this part
- Share
- 38%of 8 total for the year
- Median mileage
- 25,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2015 Infiniti Q40, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 25,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The car when parked on a steep slope with the emergency brake/parking brake on will start to roll on its own. Infiniti was contacted and blamed my driveway as the problem but I have 6 cars and the Infiniti is the only car that cant stay parked and rolls when parked. Was told id have to pay 3 thousand dollars if I wanted my car to get checked.”
NHTSA complaint #11325245, filed 2020-05, 25,000 miles“While in motion on a highway the vdc (auto hydroplane correct function) is suspected to have caused increase loss of control of vehicle. I was able to observe that the vdc light was flickering on and off. It did initially come on to auto correct but then abruptly the vehicle started to hydroplane, despite the function being on and caused me to have to divert into a guardrail...”
NHTSA complaint #11240262, filed 2019-07, 52,000 miles“I bought this new 2015 Infiniti Q40 awd from Infiniti dealer on feb 28, 2015. After driving this noisy car for three months(3000miles), I started having ringing in both ears (tinnitus). I have trouble to sleep and start losing my hearing in both ears. I have contacted the Infiniti dealer in june 2015, the first time I noticed the tinnitus caused by the low frequency noise( range from 100-400hz according to the analysis from adobe audition cc software). The noise became noticeable when reach 35 MPH on both local and highway road. …”
NHTSA complaint #10816881, filed 2015-12, 3,000 milesRelated service bulletins
- 10208932Feb 7, 2022EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 3 | 38% |
Other parts of the 2015 Infiniti Q40
3 complaintsElectrical system
1 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsBody and structure
1 complaints
← All problems reported for the 2015 Infiniti Q40
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