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Electrical systemPart report

2024 GMC Terrain Electrical system Problems

Complaints
8about this part
Share
15%of 54 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 8 complaints about the electrical system of the 2024 GMC Terrain, 15% of the 54 complaints for this model year.

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.

“Vehicle every other morning shows issue with blind spot assist. It keeps popping an error message and it has happened since I purchased it new. Took it multiple times to dealership and they cannot recreate issue. So it's been an issue since I bought it now.”

NHTSA complaint #11658040, filed 2025-04

“Bought new car August 16th 2024. Few days later, I was turning left at a light and the car lost power as I was turning and error messages came up on the dash screen saying service transmission. I also observed that the cars gear indicator went to Park by itself even though the car was still moving. Pushed the engine start button and car came back on and I switched the gear to Drive. Took car in on the 19th to get looked at. …”

NHTSA complaint #11612288, filed 2024-09

“I am reporting a recurring backup camera malfunction in my 2024 GMC Terrain AT4. Since purchasing the vehicle, I have experienced repeated instances in which the rearview camera display goes completely black when the vehicle is shifted into reverse. This prevents me from seeing the camera image while backing up. The malfunction presents a safety concern because the rearview camera is an important aid in identifying pedestrians, children, objects, and other vehicles behind the vehicle. …”

NHTSA complaint #11768559, filed 2026-10

“a little over two weeks ago we were going to sidney to get groceries. it was hot that day so we turned the a/c on. fog started coming out of the vents, it looked like we turned on a fog machine! a few days later we were going to town, my daughter got in and the whole driver's side floor was full of water. there was so much of it we had to get the shop vac out to suck it up. I called the dealer where we purchased it from because it still under warranty. their shop guy was out for the week so they scheduled me an appt for the following week. …”

NHTSA complaint #11679365, filed 2025-08

“Vehicle was running but transmission was in PARK. Suddenly on screen in front of driver this message appeared: BRAKE SYSTEM FAILURE 43MPH TOP SPEED WARNING SERVICE ESC. Vehicle was not moving. Engine was running but vehicle was in PARK. I had to drive it home. Very difficult to stop. Brake pedal vibrated violently. Very long stopping distance even at 20MPH. I had the vehicle towed to the dealership from which I had purchased it. I bought this vehicle on 25 Nov 2024. Right now its mileage is 3757. Obviously my safety and that of others was put at risk. …”

NHTSA complaint #11653803, filed 2025-04

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026515%
2025431%
2024815%
2023717%
2022712%
2021719%
20202714%
20193921%
20183515%
201797%
201696%
20153110%
20143110%
2013226%
2012329%
2011298%
20104817%

Other parts of the 2024 GMC Terrain

Transmission and drivetrain
23 complaints
Other or unknown
13 complaints
Engine
11 complaints
Fuel system
10 complaints
Brakes
3 complaints
Forward collision avoidance
3 complaints
Vehicle speed control
3 complaints
Air bags
2 complaints
Steering
2 complaints
Back-over prevention (rear camera)
1 complaints
Lane departure
1 complaints
Body and structure
1 complaints

← All problems reported for the 2024 GMC Terrain

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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