Problems · by component

2014 GMC Terrain electrical system problems

32 owner complaints to NHTSA about the 2014 GMC Terrain cite electrical system, 11% of all 302 complaints for this model year.

Complaints
32
11% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“ABS Brake problem and have tried to get it repaired for over 3 months and cannot seem to be able to get the part and call GM with no help. Can not tell me when or where to buy the part. Nobody seems to be able to get a new part and no help from GM. If there is this many problems that there is no part left available it should be a national recall.”
Owner complaint to NHTSAFiled Aug 21, 2025Electrical system, Service brakesODI 11682242
“Tensioner issues keeps breaking the timing chain. . Replaced twice at own cost. Fuel pump/ loss of power while driving. Back up camera doesn't work sometimes. Screen goes black. If key is left in the ignition it starts itself. If you try to use a car charger for a phone the AC shuts off and a "systems error" message pops up. This happens alot. It's an ongoing issue since I bought the car in Feburary this year.”
Owner complaint to NHTSAFiled Jul 1, 2025Power train, Electrical system, EngineODI 11670432
“The contact owns a 2014 GMC Terrain. The contact stated that the vehicle failed to start, and the steering wheel was locked. A tow truck driver was able to start the vehicle after several attempts. There was no warning light illuminated. The contact was able to drive to the residence. The vehicle was taken to an independent mechanic, where the failure recurred. The mechanic was able to restart the vehicle and the contact drove to the residence. The vehicle was not diagnosed or repaired. The vehicle was taken back to the mechanic and was diagnosed. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was unknown.”
Owner complaint to NHTSAFiled Apr 26, 2024Electrical systemODI 11585368
“The actuator that controls the blend door / recirculation door (moves the air from defrost to floor to vent) does not last more than a year in my vehicle. I see on the GMC Terrain forums that it is a common problem. It is a danger when defrost is needed on the windshield, and it doesn't work.”
Owner complaint to NHTSAFiled Sep 21, 2022Electrical system, Visibility/wiperODI 11485604
“My car had been needing at least 2quarts of oil in between oil changes which I have done every 3000 miles. The timing chain is bad which is caused by excessive oil consumption. The service power steering and stability track light comes on it its messing with the transmission until I disconnect the battery and reset it, and it also leaked inside my glove an f the passenger floorboards”
Owner complaint to NHTSAFiled May 26, 2022Electrical system, EngineODI 11466279
“Moved car to shovel drive way. Went to move it back and my car wouldn’t start. Garage says it is the ECM Garage says GM has a hold on the sale/install on f this part as there is a known issue involving all unit including my vehicle and newer. The only recall currently is for exams for 2018 GMC Terrain ECM. My car will sit at the garage indefinitely.”
Owner complaint to NHTSAFiled Feb 17, 2022Electrical system, EngineODI 11452446

Showing 6 of 32 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.