10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
42,591 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 GMC Terrain brakes problems

brakes problem

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2012 GMC Terrain Owner Comments

problem #5

Jun 172022

Terrain

  • miles

A D V E R T I S E M E N T S

The check emissions light for the engine light came up on the dashboard. Without prior warning or other signs the vehicle lost engine power in the middle of the road. The entire electrical power and engine stopped working and the brakes jammed. This causes the vehicle to become unstoppable in the middle of the road causing a safety hazard to the vehicle, driver, passengers and fellow vehicles on the road. The only way to stop the vehicle is somehow use the gears to shift to parking position, turn the engine again on and try to remove the vehicle from the middle of the road.

- Paducah, KY, USA

problem #4

Sep 042020

Terrain

  • 136,000 miles
The contact owns a 2012 GMC Terrain. The contact stated while driving 35 mph, when two vehicles in front of him crashed. The contact stated he depressed the brake pedal but the vehicle failed to stop and rear ended the vehicle in front. The air bags did not deploy. The contact sustained a fractured sternum due to the seat belt and was taken to the hospital and stayed over night. A police report was filed. The vehicle was not drivable. The vehicle was towed to impound lot. The vehicle had not been diagnosed or repaired as of yet. A dealer was not contacted. The manufacturer had not been informed of failure. The failure mileage was approximately 136,000.

- Porum, OK, USA

problem #3

Mar 012018

Terrain 6-cyl

  • miles
The contact owns a 2012 GMC Terrain. The contact stated that the brake pedal traveled to the floorboard when it was depressed. The contact had to apply force to the brake pedal to ensure the vehicle made a complete stop. The dealer (hardy Chevrolet, 2115 browns bridge rd, gainesville, ga 30501, (770) 532-4389) diagnosed that the brake master cylinder needed to be replaced. The manufacturer issued 20 tsbs on the brake system, but had not issued a recall. The manufacturer was notified of the failure. The failure mileage was not available.

- Powder Springs, GA, USA

problem #2

Jun 072017

Terrain 4-cyl

  • 59,000 miles
The contact owns a 2012 GMC Terrain. While driving 60 mph, the contact attempted to tap the brakes to slightly slow down the vehicle; however, the vehicle stopped abruptly. The failure recurred. The contact found that whenever he would lightly tap the brake pedal, the vehicle would abruptly stop. The contact found that the vehicle was equipped with a brake assist system and believed it was activating prematurely. The contact took the vehicle to the williamson Cadillac dealer who stated that the system was performing normally. The manufacturer was made aware of the failure and opened case number: [xxx], which was now deemed a closed case. The approximate failure mileage was 59,000. The consumer stated at approximately 40-50 mph as the brakes were applied rapidly and lightly the brakes system engages causing a sudden stop. Updated 09/11/2017 the consumer stated the vehicle was partially repaired. The consumer stated after the repair the system activated for 2 seconds, causing a jerk, then continued normally. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).'

- Miami, FL, USA

problem #1

Feb 072013

Terrain 6-cyl

  • 17,956 miles
The vehicle has been in the shop for 10 to 12 times due to failure with the engine misfiring as well as traction control lights and stability trac as well as transmission not shifting right and loss of power while driving on major highways and brought into the dealership where they tell me they can find or make the problem reappear. But have shown the dealership service department video and have had 3 general motor techs that they hired from hp and been told the vehicle is safe and that there will be no more problems but have been in the vehicle while the problems have happened and have it on video to the point where I almost lost my life yesterday night. The vehicle is a death trap and many customers including myself on GMC Terrain forum as well as online have had the same problem and have been told the same thing that it is nothing to worry about but it is. Please help have been told by GM to keep my mouth shut they would offer me 5,000 dollars for my troubles and that my kids are worth that much from a legal advisor at General Motors legal. Have ask to be taking out of the vehicle for something safe and still I'm being told no......please help

- Easton , PA, USA

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