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Electrical systemPart report

2018 Infiniti Q50 Electrical system Problems

Complaints
6about this part
Share
14%of 44 total for the year
Median mileage
30,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the electrical system of the 2018 Infiniti Q50, 14% of the 44 complaints for this model year. Where a mileage was given, the median is 30,000 miles. 1 recall campaign on record is filed under a similar system.

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.

“Odometer Fraud. The contact purchased a 2018 Infiniti Q50. It was discovered that there were three separate mileage discrepancies. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 50,370; however, at the time of registration, it was discovered that the mileage had been rolled back from 54,000 to 28,630 miles. The mileage before the vehicle was purchased was 47,650.”

NHTSA complaint #11725568, filed 2026-03, 54,000 miles

“I am submitting this complaint regarding a safety defect in my 2018 Infiniti Q50, which was manufactured prior to May 1, 2018. Despite matching the make, model, and production timeframe associated with an existing Infiniti recall for backup camera failures, my specific vehicle is not included in the recall population. The backup camera in my vehicle intermittently fails to display an image or presents a blank or distorted screen when the vehicle is placed in reverse. …”

NHTSA complaint #11735910, filed 2026-05

“The locks on the car automatically keep locking all day long and drain my battery, I have had to have my car jump started and recently towed to Infiniti dealer and they are stating there have been known issues with this electrical problem with rain getting into the sunroof and deteriorating the lines that short out the other systems. I have a bumper to bumper warranty that I took out with the Infiniti Dealership but they are stating only part of the repairs will be covered by the warranty and not the sunroof part and that will cost me $1,300 to fix. …”

NHTSA complaint #11621012, filed 2024-10

“The airbag passenger light is illuminated causing air bag system to remain off until resolve. The vehicle was taken in for inspection and dealer confirmed diagnostic results found Occupant sensor malfunctioning. Under warranty, the sensor was covered, but after installation the system also found that wasn’t the only thing to replace. It’s a handful of sensors and harness that is integrated within the seat frame with the ONLY solution to replace the entire chair/seat frame. This item does not fall under warranty. My concern is the safety of my family riding in the vehicle. …”

NHTSA complaint #11567612, filed 2024-01

“The contact owns a 2018 Infiniti Q50. The contact stated that the back-up screen would not display while the gear was in reverse. The cause of the failure was not determined. Nissan of athens (4735 atlanta hwy, athens, ga) and the manufacturer were notified of the failure, but no assistance was offered. The contact was informed that the vehicle was not included in NHTSA campaign number: 19v654000 (electrical system). The contact stated that the vehicle experienced the same failure listed in the recall. The failure mileage was 30,000.”

NHTSA complaint #11292527, filed 2020-01, 30,000 miles

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2019620%
2018614%
2017813%
2016821%
20151713%
20144225%

Other parts of the 2018 Infiniti Q50

Engine
17 complaintsAir bags
9 complaintsFuel system
6 complaintsOther or unknown
6 complaintsBack-over prevention (rear camera)
3 complaintsBrakes
3 complaintsTransmission and drivetrain
3 complaintsWheels
3 complaintsEngine cooling
2 complaintsVehicle speed control
2 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaints

← All problems reported for the 2018 Infiniti Q50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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