Electrical complaints by model year
Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
What owners report
Vehicle was purchased December 2021 upon purchasing the vehicle I noticed the horn was not functioning, vehicle was taken back to dealership, they corrected the issue, then months later horn isn't functioning at all. Nor is Lane Departure Warning, Lane Keeping Assistance, Parking Collision Warning, Rear Cross Traffic Warning functioning on car. The automatic rain sensor isn't working at all.
I have 3 issues with the car. The braking issue presented itself last in time but is most important relative to safety. Around mid January 2022, my car, while I was driving, and without any notice, began to decelerate/brake for no reason. My car is equipped with front driver assist but there were no cars, hazards, in front of me. It was a clear, dry day and the car was warm. It was momentary and fortunately no one was behind me. The car beeped, but there was no other warning. The second time this same event happened, however, the accelerator pushed back against my foot. Again, no one was in front of me and it was a clear, dry day. The third time this happened, the car beeped and what I know now is the cruise control indicator, appeared on the display. I did not touch the cruise control to activate. …
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.
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. This issue was happening to 2016 and 2017 models that were recalled for the same issue. Unfortunately this vehicle may have been manufactured in 2017, but holds the 2018 year on paper found through carmax.
The contact owns a 2017 Infiniti Q50. The contact stated while driving 50 MPH and depressing the accelerator pedal, the vehicle hesitated to respond. The check engine warning light was illuminated. Additionally, the contact stated that the vehicle was experiencing inaccurate fuel gauge reading. The contact stated that the failures had been recurring while driving. The vehicle was taken to the dealer several times, and the dealer diagnosed that the fuel pump had failed. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 17V476000 (Fuel System, Gasoline, Electrical System). The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 70,000.
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.
The contact owns a 2016 Infiniti Q50. The contact stated that the vehicle was taken to the dealer for an oil change. The contact stated while driving to the residence, the RPMs and the speedometer were intermittently dim, and the daytime running lights were intermittently inoperable. Additionally, the contact stated that the front passenger's side seat belt light indicated that the seat belt was not buckled even though the front passenger's seat was unoccupied. The contact stated that upon buckling the front passenger's side seat belt, the seat belt warning light turned off. The vehicle was taken to the dealer to be diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 93,000.
I'm reporting a safety issue with my 2016 Infiniti Q50. Last Friday [redacted], my the car wouldn't crank and there was minimal dashboard power, but the engine wouldn't start. After receiving a jump, I had the battery replaced assuming it was the issue. However, six days later, while driving, the vehicle suddenly lost all electrical power mid-drive with no warning or dashboard alerts. The engine shut off, the brake pedal became stiff, and I was unable to use any power-operated functions, such as rolling down the windows (98 degree day in Texas) or opening the trunk, which contained my emergency tools. A police officer had to assist and the vehicle was towed. Upon inspection, the issue was traced to corroded battery terminal cables, which were blocking the signal from the new battery and causing the full shutdown. …
Related recalls (2)
Electrical system › Software
Nissan North America, Inc. (Nissan) is recalling certain 2016-2018 Infiniti Q50 and 2017 Infiniti Q60 vehicles equipped with a 2.0L engine. Incorrect Fuel Pump Control Module (FPCM) software may allow the fuel level in the main tank to be too low to supply fuel to the engine, causing the engine to stall while driving.
Remedy: Nissan will notify owners, and Infiniti dealers will reprogram the Fuel Pump Control Module (FPCM) with corrected software, free of charge. The recall began August 29, 2017.
Electrical system › Software
Nissan North America, Inc. (Nissan) is recalling certain model year 2013-2014 Altima, LEAF, Pathfinder, and Sentra, model year 2013 NV200 (aka Taxi) and Infiniti JX35 and model year 2014 Infiniti Q50 and QX60 vehicles.
Remedy: Nissan will notify owners, and dealers will update the OCS software, free of charge. The recall began on April 14, 2014. Owners may contact Nissan at 1-800-647-7261.
Frequently asked questions
Which Infiniti Q50 years have electrical problems?
By NHTSA complaints, the 2014 (42), 2015 (17), 2016 (8), 2017 (8) and 2018 (6) model years. Electrical complaints make up 25% of all complaints for the 2014.
Is there a recall for Infiniti Q50 electrical problems?
Yes — 2 recalls, including 17V-476 (software, Jul 27, 2017); 14V-138 (software, Mar 25, 2014). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Infiniti Q50 electrical problems start?
Across all years, half of the complaints with a recorded mileage happened before about 35,000 miles; 59% happened before 50,000 miles.
What part fails most often?
Owners most often name the software (1 mentions), followed by the instrument panel › speedometer/odometer (1).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.