GMC Terrain Complaints (2018)

226 consumer complaints on file.

#11458766March 29, 2022
SEAT BELTS
The contact owns a 2018 GMC Terrain. The contact stated that while driving, the seat belt restraint warning light illuminated continuously while the driver’s and passenger’s seat belts were fastened. The dealer was informed of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 21,700.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11457661March 21, 2022
SERVICE BRAKES
The contact owns a 2018 GMC Terrain. The contact stated that while her husband was driving 50 MPH, the brake pedal was depressed and went to the floorboard. The service brake assist warning light was illuminated. The vehicle was not taken to a dealer nor independent mechanic to be diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11451293February 9, 2022
SERVICE BRAKES
The brakes are extremely hard to engage while driving. All 4 rotors are pitted with less than 30k miles. Doing some online research this is a common problem and should be addressed. I just did my first set of brakes at 100,000 miles on my truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11447628January 15, 2022
POWER TRAIN
11/24/2021 buy 2018 GMC Terrain, before leaving the dealership I told the seller that the engine light was on he said it was because they removed the alarm which I didn’t want to buy and the light was going to be off later and told me to take the car to service on Monday 11/29 so my husband took the car they repair a detail on the handle door and he said the engine light it’s off so we tough what he said about the alarma, we trust the seller but on 12/26/2021 I left California to Texas, I was about 4 and a half hours away the car began to lose speed and a very strange noise was heard, I stepped on the accelerator and did not raise speed, I had to step aside the freeway and the car turn on but It did not go forward or backward and NO warning light was on dashboard, nothin ! The car broke down in Arizona in the middle of nowhere, it’s was freezing and almost got hit by a semi truck, it was a very frustrated experience.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11444179December 17, 2021
ENGINE, FUEL/PROPULSION SYSTEM
Catalytic converter failed when driving damaging the engine. Vehicle undrivable and waited for repair at shop for over 90 days. Engine warning light keeps coming on with error code P1186 that the GMC dealer can not fix.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11444181December 17, 2021
ENGINE
Beaverton GMC did repair work on my vehicle. During the inspection they said they found the radiator leaking from a number of spots and it needed replaced. It has never leaked and did not need replaced. Why did they do it? I as for the parts but they tossed them and would not give them to me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443338December 10, 2021
UNKNOWN OR OTHER
Auto-Stop feature does not have a button to disable the feature.2019 model has the disable feature and GM needs to provide a means to disable it, even if on a temporary basis.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11440697November 16, 2021
ELECTRICAL SYSTEM, STEERING
Multiple warning lights are appearing at once (Automatic brake assist, forward collision assist, parking brake released) When the car is put in reverse, the radio turns off for a brief moment and the steering assist warning shows on the dash. The steering wheel snatches back in the opposite direction causing a safety concern. The car also completely cuts off after the auto-stop takes effect at red lights causing me to have to pump the brakes at least twice to re-ignite and be able to accelerate.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11438481October 28, 2021
STEERING
Car gives a "Power Steering Reduced, Drive With Care" message after turning the wheel one direction and braking simultaneously. After message is displayed, power steering is no longer available, and this can happen while driving around a curve. Once car is powered off for longer than 1 minute, can turn back on with no problem, but problem can come back just the same. Took to GMC dealer. They recalibrated my car, but problem came back 1 month later. They said they can replace the whole electric steering system, but that may not fix the problem, as they do not know what the real problem is. Vehicle was purchased used with 50K miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11437064October 17, 2021
SERVICE BRAKES
The vehicle experienced a sudden loss of braking and displayed a “brake assist “ fault message. The check engine light has illuminated. The sudden loss of braking was in a residential neighborhood traveling at 35 mph. I was turning during the loss of braking and was able to narrowly avoid collision with the cars at the intersection because I could not slow to a safe speed. The fault codes have not been read by the dealership yet nor has the repair been completed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11435997October 8, 2021
FUEL/PROPULSION SYSTEM
Yesterday morning I noticed a smell of gas around my car. I looked and didn’t see anything. I drove to work. Once I got back to my vehicle after work I could smell gas as I approached my vehicle. I looked under my car and noticed a puddle of gas. I went to the gas station to put enough fuel for me to make it home in my vehicle and as I was putting the gas I noticed a drip under the vehicle. Once I got home and parked my vehicle I looked under the car and there was a rapid and steady drip coming from the fuel tank. The same make, mode and year of my vehicle has been recalled for this.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11429863August 20, 2021
POWER TRAIN
The turbine shaft in the transmission broke without warning. The part could have failed in an intersection leaving the vehicle in the middle of the road and potentially causing an accident as the vehicle was unable to move under its own power. Luckily it failed going down the interstate and my wife was able to safely coast to the shoulder. Yes, the vehicle was disassembled by the dealer and the broken part discovered. There was no warning that this would happen. The ironic part was that the vehicle was in to the dealer the day before for a emissions recall, a check engine light (emissions related) and a routine maintenance front end alignment and left my wife stranded the next day.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11419173June 1, 2021
SERVICE BRAKES, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The "Service Brake Assist" issue in other 2018 GMC SUVs is happening in the 2018 GMC Terrain, but it is not part of the recall. Our brakes became EXTREMELY difficult to press right as we were turning onto the on ramp of an expressway. Thankfully we were smart enough to pull over and not get on the highway. Had we done so, I may not have been here to type this complaint. The brakes be come extremely difficult to press and that message shows. Dealership is going to charge me $400 to replace a vacuum pump - they were not interested in the information I have around this issue in other GMC SUVs since it isn't a formal recall on the Terrain. I could have died yesterday due to this braking issue. I've owned this car for 3 months.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11405404March 29, 2021
ENGINE, POWER TRAIN, UNKNOWN OR OTHER
MY AUTO STARTED LEAKING SOME KIND OF OIL.NOT SURE WHAT KIND BUT I CAN SEE ACCUMULATION ON DRIVEWAY CONCRETE PAD. HAD MOTOR OIL & FILTER CHANGED IN CASE IT WAS A O-RING OR NOT TIGHT ENOUGH. IT CONTINUES TO LEAK.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11404574March 23, 2021
POWER TRAIN
MY 2018 GMC TERRAIN SLE HAS 41668 MILES AND HAS BEEN SERVICED AS NEEDED. ANYHOW, SOMETIMES WHEN I AM DRIVING, I CAN FEEL THE POWER TRAIN STALL OUT WHEN DRIVING INTERMITTENTLY. THIS CONCERNS ME AS A SINGLE PARENT WITH A 10 YEAR OLD CHILD THAT GOES EVERYWHERE WITH ME. I JUST WANT MY VEHICLE TO BE SAFE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11404085March 21, 2021
SERVICE BRAKES
BRAKING ASSIST MESSAGE IS APPEARING AND BRAKING IS EXTREMELY HARD AT LOW SPEED. YOU HAVE TO PUSH DOWN HARD ON BRAKE TO GET CAR TO STOP.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11400104March 10, 2021
POWER TRAIN
TL* THE CONTACT OWNS A 2018 GMC TERRAIN. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED INTERMITTENTLY WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE CONTACT HAD TAKEN THE VEHICLE TO HILLSDALE BUICK GMC (99 W CARLETON RD, M-99, HILLSDALE, MI 49242) ON MULTIPLE OCCASIONS TO HAVE MULTIPLE REPAIRS PERFORMED ON THE VEHICLE INCLUDING THE REPLACEMENT OF THE ECM, SEVERAL FUEL INJECTORS, AND MULTIPLE COMPUTER UPDATES PERFORMED HOWEVER, THE FAILURE PERSISTED AFTER EACH VISIT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND REFERRED THE CONTACT TO NHTSA FOR ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 90,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11397836February 25, 2021
SERVICE BRAKES, ELECTRICAL SYSTEM
WHEN RESTARTING AFTER VEHICLE "AUTO STOP" I AM GETTING "SERVICE BRAKE ASSIST" AND OCCASIONALLY "SERVICE ESC" WARNINGS. THESE WARNINGS WERE ASSOCIATED WITH BRAKE FAILURE IN GM SUV'S AND PICKUPS AND WERE SUBJECT TO A RECALL. NO SUCH RECALL EXISTS FOR THE TERRAIN. I HAVEN'T YET EXPERIENCED A BRAKE FAILURE BUT GM SEEMS TO WANT TO WAIT UNTIL I DO TO FIX THE PROBLEM.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11390858January 31, 2021
SERVICE BRAKES
MY 2018 GMC TERRAIN BRAKES DID NOT WORK WHEN COMING TO A STOP AT STOP LIGHTS WHICH CAUSED ME TO REAR END THE CAR IN FRONT OF ME. THERE WAS NO WARNING ON MY SUV NOR DID I RECEIVE A RECALL ON THIS MATTER. THIS HAPPENED TWICE TO ME IN THIS SAME VEHICLE WHERE THE BRAKES DID NOT RESPOND AT A LOW SPEED CAUSING AN ACCIDENT. THIS ACCIDENT JUST HAPPENED TO CAUSE DAMAGE TO MY VEHICLE AND THE CAR IN FRONT OF ME.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11386875January 6, 2021
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, UNKNOWN OR OTHER
THE SERVICE STABILITRAK LIGHT CONTINUES TO COME ON. WHEN IT DOES, ALMOST ALL OF THE LIGHTS ON THE DASH LIGHT UP AND THE CAR PUTS ITSELF IN NEUTRAL AND SHUTS OFF. THIS HAS HAPPENED 5 TIMES IN THE PAST TWO WEEKS. TWICE WITH MY [XXX] IN THE CAR. PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). THE CAR WAS PURCHASED 12/23/2020 AND IT FIRST SHUT OFF WITH THE SERVICE STABILITRAK WARNING 12/31/2020. I'VE TAKEN IT TO THE DEALERSHIP FOR REPAIR. THEY REPLACED THE FRONT RIGHT WHEEL SENSOR TODAY AND IMMEDIATELY AFTER LEAVING THEIR LOT, IT SHUT OFF TWICE. I DID A SEARCH ON THE VIN AND FOUND THAT THIS VEHICLE HAD ISSUES AT 11K MILES AND 27K MILES. NOW AGAIN AT 55K MILES. THE CAR JUST SHUTS ITSELF OFF WHILE DRIVING. FIRST TIME IT HAPPENED, I WAS ROUNDING A CORNER IN HIGH TRAFFIC AND IN MID TURN, THE CAR SHUT OFF. I WAS ALMOST HIT BY SEVERAL CARS. THIS VEHICLE IS DANGEROUS. IT HAPPENED ONCE WHILE ON THE HIGHWAY WITH MY 15 MONTH OLD IN THE CAR AND TODAY IT HAPPENED TWICE WITH HER IN THE CAR.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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