GMC Terrain Complaints (2019)

187 consumer complaints on file.

#11486812September 27, 2022
SERVICE BRAKES
my vacuum booster pump for my brakes keeps needing to be replaced. i had to get it replaced twice now & every single time that it stopped working i was driving on the highway at 65 mph and my brakes just suddenly wouldn’t work and we’re very hard to push down. this has happened twice now
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11486817September 27, 2022
SERVICE BRAKES, ENGINE
I was exiting off the interstate and all of a sudden my brakes got hard and wouldn’t let me stop. I tanned thru a red light barley missing another vehicle. The dealership says my vaccines pump went out and caused it to strip my valve cover gasket to shreds and now has stripped the gears in the camshaft.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11484199September 13, 2022
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
When I place the vehicle in reverse, my backup camera is not working, resulting in a blue screen with a message to have the camera serviced. Per the GMC dealership, this is a common problem with many of the newer GM vehicles and is a safety item due to not having a clear view of what is behind me. I purchased this safety feature and it not working.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11481312August 26, 2022
SERVICE BRAKES
We were in the driveway thru lane at a fast food restaurant and all of a sudden the car shut off and the brakes got hard to push in. The car was able to be started at this time but the engine wasn’t working well. We were able to make it home, slowly and carefully. We had the vehicle towed to a Mechanic and this is what was told to us: Possible increased brake pedal effort due to mechanical engine vacuum pump failure. We had it sent to David's Auto Service 219-861-0666. This could’ve been a very dangerous accident if we were driving on the expressway or on a regular street going the normal speed limit. Thankfully we were in a drive thru lane.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11480509August 22, 2022
SERVICE BRAKES
After driving down around 40 miles, the brakes failed when pulling into a parking spot. There was no indication that the brakes were having issues. No sounds or vibrations were felt. I stopped at a stoplight before turning into the parking lot. Then when attempting to spot in a parking spot, the brakes were very difficult to press. Luckily there was not a vehicle or person in front of me. Had the vehicle taken to a dealer and was told it was the vacuum booster that failed. Upon researching, this has been an issue in past GMC models, but I was told there was no current recall for the vehicle. The vacuum booster was replaced for $540 and I drove the vehicle home. The vehicle showed no issues for the first day. On the second day, I went to pull into a parking spot at a park and the same issue with the brakes occurred. I nearly struck a child that was walking in front of the parking spot. Luckily I was able to slam the pedal to the floor and come to a stop. Took the vehicle to the mechanic and was told the same part had broke. That part has been fixed again and has been fine for 2 days so far. I'm scared that it will happen again and I will not be able to stop in time before I hurt someone else or my family. This needs to be addressed. And I believe I am owed compensation from the manufacturer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11480066August 18, 2022
SERVICE BRAKES, ENGINE
Our son and two daughters were driving on the highway at approximately 70mph when a message came up to say the engine was in "Reduced Engine Power". Although nothing seemed to change. The instruction for such and error message is to "get vehicle to a dealership within the next day." So they slowed to 60mph and continued on their way. About 8-10 minutes later another message popped up that said "Service Brake Assist", at which point they immediately tested the brakes and they worked. But 2-5 minutes later they tested the brakes again and the brakes had completely failed! Zero brakes on the highway! No matter how hard the driver pushed the brake pedal there was 0.0% response. So luckily they were able to coast down to about 10 mph with hazard lights on. But at that point they lost everything. No power steering, no engine, and zero brakes. Thank the lord that they were able to have enough room to slow down and get over to a shoulder prior to the loss of power steering and that they had enough room to coast to a stop. Please help, as we were extraordinarily lucky that day that 3 of our children were able to walk away from such a catastrophic vehicle failure. I just do not want that to happen to anyone else.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11474320July 17, 2022
POWER TRAIN
Transmission slips from cold start No. Have not taken to Dealer No. No. Warning lights or messages
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11474103July 15, 2022
ELECTRICAL SYSTEM, POWER TRAIN, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The car failed to shift into gear. Message displayed, "transmission unable to shift" ,"2 gears selected " or "service transmission". Issued started in June 2022 while in drive thru line, when shifting from park to move the car would not shift. Had to turn car off for about 10 minutes and car was able to shift and drive normal. Check engine light came on about a week later and had checked for code p07b5. A couple of days later, light went back off. About 3 days later getting ready to leave home and car would not shift into gear again but turn car off and back on a couple of times and car shifted and drove normal. On July 13 2022 was driving in traffic and message displayed, unable to shift and service transmission. When I changed lanes and released the gas petal, the car went into park, stopped, and set the parking brakes, but did not turn off, jerking me forward and throwing things around in the car. Cars behind me had to slam on brakes to keep from hitting me because there was no initial brake light. I put on the flashers and turned the car off. Parking brake was stuck so I pressed it about 5 times before it finally released. I restarted the car 3 times and it finally shifted and drove as normal. I called gm to inquiry about a recall and was told there were none. I called for a diagnostic test and schedule is in about 2 weeks. The car has not been inspected by anyone listed above?⁸
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473648July 13, 2022
ELECTRICAL SYSTEM, ELECTRONIC STABILITY CONTROL (ESC)
The contact's wife owns a 2019 GMC Terrain. The contact stated that upon making a left turn, the steering wheel would forcefully jerk to right, thrusting the vehicle into the opposite direction. The contact stated that the service ESC and service brake assist warning lights were illuminated. The warning lights would disappear soon after the failure as well as upon restart. The contact had taken the vehicle to the dealer on multiple occasions where he was repeatedly informed that unless the service light was illuminated upon arrival to the dealer, they would be unable to service the vehicle. The vehicle remained in the possession of the dealer and was not repaired. The manufacturer had yet to be notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11473569July 12, 2022
SERVICE BRAKES, HYDRAULIC
The contact owns a 2019 GMC Terrain. The contact stated while approaching an intersection, he depressed the brake pedal to the floor however, the vehicle failed to stop immediately. The contact stated no warning light was illuminated. The contact stated that the brake assist activated and stopped the vehicle. The contact was able to continue driving to his residence at a slower speed. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the vacuum pump to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 84,400.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11466888June 1, 2022
SERVICE BRAKES, ENGINE, POWER TRAIN
Brakes quit working after service light came on. Vehicle will not stop
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11467061June 1, 2022
ELECTRICAL SYSTEM
A COUPLE WEEKS AGO I GOT IN MY 2019 GMC TERRAIN AND SHIFTED INTO REVERSE AND MY BACK-UP CAMERA WAS NOT WORKING. IT WAS A BLUE SCREEN THAT SAID "SERVICE REAR VISION SYSTEM". A COUPLE DAYS LATER IT STARTED WORKING AGAIN. MY CAR SAT FOR A WK AND I GOT IN IT ON MAY 28 TO HELP MY DAUGHTER MOVE AND IT WASN'T WORKING AGAIN. THIS IS A SERIOUS SAFETY ISSUE NOT ONLY TO ME, BUT TO ANYONE (LIKE MY GRANDKIDS) OR ANYTHING BEHIND MY CAR AS I'M BACKING UP, ESPECIALLY IF I CANNOT SEE THEM.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11461559April 20, 2022
UNKNOWN OR OTHER
Rear camera turned to blue screen at 37,000 miles. Module died.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11457162March 17, 2022
SERVICE BRAKES
I have been notified that my brake vacuum pump EXPLODED in to my engine, leaving me with limited braking ability. I was driving through a school zone when the brakes went out, I noticed as I was not able to stop at an intersection. This could have led to multiple injuries, including children being in harms way. I had no warning this was coming and now look towards a hefty repair bill. GMC has recalled vacuum pumps in other models but for some reason the terrain is not included. I wonder if there just haven't been enough deaths caused by faulty brake systems for them to cover this model too.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11453140February 20, 2022
ELECTRICAL SYSTEM, POWER TRAIN, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The autoshutoff of the vehicle should be optional this vehicle goes on and off so many times and after it starts is acting up on braking and transmission deeler says no dtc all good but still doin it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11447797January 17, 2022
SERVICE BRAKES
GMC Corporate Office General Motors Company300 Renaissance Center Detroit, MI 48265 To Whom it May Concern, Been a customer with GMC for a good while despite the issues and troubles we were still loyal to the company. October 31,2021 Sunday, I had sudden lost of my brakes/stalled on my 2019 Terrain SLE while driving to the store close to my area on top of that having less than 30,000 miles in it. Despite the horrible and devastating event I was able to have the truck without any scratch , hit , or had any accident on this event but instead still safely stopped the car down a hill from where I lost my brakes/stalled. Fast forward Nov 2nd had the truck towed to the Milea Pontiac Buick GMC Service And Parts at 3281 E. Tremont Bronx New York 10461. Towing company both from picking up the truck and dropping off Milea had a hard time since the truck was not starting or even able to be placed in neutral to be able to have the truck roll of the flatbed. Nov 2nd Tuesday 2019 GMC Terrain was dropped off at Milea Service and Parts. 1st issue identified by your crew (sort of technical experts) was a bad battery and needs to be replaced, 2nd problem was the computer need to be replaced, 3rd problem was that I had put BAD gas into the tank and the fuel pump need to be replaced after 9 days so fast forward now to Nov 9, 2021.Now finally spoke to a mechanic now stating pistons doesn’t seem to be firing but does not have proper tools to do the test is trying to get from another dealer to be able to diagnose the problem. Nov 20, 2021, still no news as to what is the real issue on the truck we again visited the Milea to find out what is the deal and still without a truck from Nov 2nd to Nov 20 still yours truly has no loaner and no written nor verbal confirmation of what really cause my lost of my brakes/stalled truck. Linda Cuomo the Milea representative has nothing to inform us regarding the cause and instead waiting for a specialist from out of town which claims to be the e
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11446015January 3, 2022
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
The Back Up Camera System is not working properly. When Vehicle is put into reverse a blue screen appears. This can be dangerous as one could back up into someone or something. This is a 2019 vehicle and the NHTSA made them mandatory in May of 2018. This has been confirmed by a dealership. Many others have posted this online as an issue and GM has put out this service bulletin: https://static.nhtsa.gov/odi/tsbs/2019/MC-10160418-9999.pdf
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11445662December 30, 2021
TIRES, TIRES:TREAD/BELT
BOTH FRONT TIRES SHOWING HEAVY CHIPPING OFF OF TIRE TREAD
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11443629December 13, 2021
TIRES
The contact owns a 2019 GMC Terrain equipped with Hankook Tires, Tire Line: Ventus S1 Noble 2 Tires, Tire Size: 235/50/R19, DOT Number: (N/A). The contact stated that while her daughter was driving approximately 45 - 50 MPH, the low-pressure tire warning light was illuminated. The contact's daughter pulled over and noticed that there was tread separation on the front passenger's side tire. The contact's daughter replaced the affected tire with the spare tire. The vehicle was later towed to the dealer. The dealer was awaiting approval from the manufacturer to replace the tire. The tire manufacturer was not made aware of the failure. The failure mileage was not available. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11442967December 7, 2021
SERVICE BRAKES, POWER TRAIN
I received a "service brake assist" message which came on then off. Took the car to a local mechanic who looked it over and said to see dealer as they saw nothing obvious. internet search revealed that many people with terrain said this warning came on when battery was low. Made a service appt for NJ dealer for 12/6/21. on 12/3/21, began a 1200 mile drive from Florida to NJ, after 2 hours, check engine light came on. Took the exit ramp from I 75 and at end of ramp, there was a total braking failure. I had to press very hard to eventually stop. Shut off car, attempted to restart but it would not. Towed to a mechanic who found fluid leakage and a repair bulletin on GM site involving vacuum seal camshaft. #pip5598A diagnostic tip. Internet search reveals many anecdotal instances of same problem. On Monday, 12/6/21, I received an email from GMAC saying that the on board diagnostics had shown a "low battery" concern. The catastrophic loss of braking seems to be connected to a low battery situation. This needs to be looked into by NHTSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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