GMC Terrain Complaints (2019)

187 consumer complaints on file.

#11645845March 2, 2025
SERVICE BRAKES, ENGINE
Vacuum pump failed causing hard brake pedal and the inability to properly stop the vehicle. Thankfully I made it to a safe area and had the vehicle towed. No warning light or engine service lights ever illuminated. Once it was taken apart the bearings were disintegrated and metal shavings are in engine components.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640760February 4, 2025
SERVICE BRAKES, ENGINE, ELECTRICAL SYSTEM
Service parking brake comes on, steering reduced. Problem reoccurring often, but intermittently. Actuators malfunctioning causing many sensors to fail off and on. Huge safety concern for myself, my riders, and anyone else on the road. When this happens my car has to “think” to move unless you clear the pop up message. Check engine light comes off and on at its leisure. When steering reduced comes on the car will not move until ready. This is clearly affecting electrical things as when I shut power off to other supplies it sometimes becomes more frequent as well as less frequent. The car does not understand what to do as its computers are confused at what the problem is, as the problem does not consistently happen. I have print outs of one time I caught it with failing actuators. I refuse to go to the dealership as I’m told “oh the problem isn’t happening now.” Which negates safety of all people on the roadways. You’re more than welcome to inspect. Though I will be present as I refuse to be told there’s no problem. As previously stated this happens when it wants to happen, but again I’ve caught the issue and can supply information.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640766February 4, 2025
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
Headlights flicker when auto stop releases and clicks back on to move the vehicle. This happens when it wants too but usually at the same time service parking brake will pop up, followed by steering is reduced, drive with care.. Lets see what else. Carplay no longer works. No sound. sd card error pops up. Car will not play music through a cord but will via bluetooth, but charges a phone. OnStar light flickering between green and red until I turned off power to the liftgate. (manually clicking over knob to disable) Headlights flickering can cause accidents. Sure hope there's no epileptics out. Yes, orielly. I have documentation, photos, videos, take your pick I'm here to help. Not evaluated at dealer or mechanic, who can afford labor rates? This has been happening for months and I will continue to report till something is done or lives are cared about.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636398January 16, 2025
ENGINE, POWER TRAIN, SERVICE BRAKES
Driving home from dropping my daughter off at school. When slowing down at stop sign, car locked up brakes completely, almost went through stop sign, car shut down engine and placed vehicle in park. Diagnosis is a vacuum pump failure, causing reluctor wheel to spin freely from camshaft. This happened without warning at 70k miles. Diagnostic report from three weeks prior showed no bad diagnostics with engine or drivetrain components, or brake components. Had to have car towed from intersection where i was impeding traffic due to sudden failure. Garage is concerned regarding potential for debris and engine damage, as well as timing issues due to sudden failure of vacuum pump. GM has authorized vacuum pump recalls on other makes from prior years, not Terrain for some reason. This is how becoming highly reported failure among GMC/Chevy vehicles with shaft driven vacuum pump design between 2019-2022. GM has stopped using this design on 23 and newer models. They should absolutely recall these older models for this issue. Sudden vacuum pump failure can lead to unrepairable engine damage due to design.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634605January 7, 2025
BACK OVER PREVENTION
The contact owns a 2019 GMC Terrain. The contact stated while reversing the vehicle, the display screen failed to display an image and was instead displaying a blue screen. The backover prevention system warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 55,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633432December 31, 2024
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
The contact owns a 2019 GMC Terrain. The contact stated that while reversing, the rearview camera displayed a blank image. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630894December 16, 2024
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
Blue screen with the message "Service Rear Vision System"
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630357December 12, 2024
BACK OVER PREVENTION
The contact owns a 2019 GMC Terrain. The contact stated that while in reverse(R), the back-up camera failed to operate as needed with the display screen displaying a blue image. The "Service Rear Vision System" message was displayed on the instrument panel. Neither the dealer nor the manufacturer was notified about the failure. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The vehicle was not repaired. The failure mileage was approximately 88,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629553December 9, 2024
SERVICE BRAKES, ELECTRICAL SYSTEM, STEERING
My ESC randomly comes on. Service parking brake message comes on intermittently. Messages pop a up saying steering wheel assist limited, drive with care. Again, all of these are intermittent but when they happen my steering wheel locks up. Even mid turn. Being intermittent it doesn’t always happen and weather seems to affect when it happens, or that’s a coincidence.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629781December 9, 2024
ELECTRICAL SYSTEM
Backup camera stopped working, giving me a blue screen
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11629176December 6, 2024
BACK OVER PREVENTION
The contact owns a 2019 GMC Terrain. The contact stated that occasionally while the vehicle was shifted into reverse, the back-up camera failed to display an image behind the vehicle as intended. The contact stated that the display screen turned blue. The local dealer was contacted, but the vehicle was not diagnosed or repaired. Upon further investigation, the contact related the failure to Technical Service Bulletin: 19-NA-076. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627379November 25, 2024
STRUCTURE:BODY
While I was driving on a highway, my sunroof suddenly imploded, causing shattered glass to fall all over myself and my car. The outside temperature was 50° and my car’s internal temperature was set to 68°. I reported this to the GM dealership and they told me to just report it to insurance. I am making a claim with insurance now. There were no warning or signs of this happening, just a sudden extremely loud noise and glass falling. No inspections have been done.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11624984November 13, 2024
ENGINE
Driving on the interstate and got to a Toll the automatic stop start stopped the car and the car never came back on. The battery and starter started smoking and the engine has gone out. No explanation no nothing and the Mechanics at the Gmc Dealership stated it just happens with these engines they just go out! I purchased the vehicle on April 9th before I purchased it I had the dealership send it to a Gmc certified dealership to have it serviced. I've attached the paperwork from the dealership as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11623202November 1, 2024
SERVICE BRAKES
The brake vacuum pump failed. I am extremely fortunate this happened at a rest stop after being on interstate 80 for numerous miles. Had this happened at highway speeds it would have been catastrophic for myself and most likely others. I do not have the part. The problem was confirmed and the psrt was replaced by Mavis Discount Tire in Mountain Top, PA There were no warning lights, signs, or symptoms prior to the malfunction. It is my understanding that GM has recalled the part on other models, but did not include the Terrain in the recall. I believe it should be before someone is seriously injured.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11623207November 1, 2024
SERVICE BRAKES
At 86,000 miles information board on dashboard alerted “Service, Brake Assist” upon braking from coming off of interstate. Diagnosed to a failed cam shaft driven Vacuum pump for power brake booster, next to no braking power with little to no warning what so ever. Terrible design from GM. Near miss collision due to brake failure with no warning. This needs an immediate attention through the engineering department to create a redundancy within the system. Nearly caused a very bad accident with my [XXX] and [XXX] daughters in the vehicle while fiancé was coming to pick me up from being on the road as a OTR truck driver. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11621716October 24, 2024
SERVICE BRAKES, ENGINE
I was riding on the freeway when my brakes failed. i was not able to press down on my brakes with zero warning. I had to swerve to miss cars and pull on the shoulder of the freeway and my car still would not slow down. I finally got from 65 to 35 and pressed on my emergency brakes. I stopped the vehicle then my engine light came on and I got my car towed to the car shop where my car would not stop and suffered internal damage to my engine from the brakes and vacuum pump
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11618883October 9, 2024
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM, ENGINE
The contact called on behalf of her husband who owns a 2019 GMC Terrain. The contact stated that while her husband was driving approximately 50 MPH, the brakes seized, and the contact veered off into a lot to park the vehicle. The vehicle was towed to an independent mechanic where the vehicle was diagnosed. The contact was informed that the brake vacuum pump and the timing chain needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 72,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11618554October 7, 2024
ENGINE
Turbo Charge Engine
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615813September 22, 2024
ENGINE
I bought a car from Boone Chrysler Dodge Jeep Ram dealership in North Carolina on [XXX] and by [XXX] my engine was out before I purchase my car I made sure they serviced my vehicle at a GMC Dealership and there's a warranty on the service of my engine I did not buy the warranty on my car because they couldn't guarantee that the warranty transferred over to West Virginia shop's and that they would cover issues they stated they could deny service cuz it was out of state. So my car went to Moses Cadillac GMC in downtown Charleston on [XXX] they literally just randomly dropped it back off to me two Wednesdays ago. I've been working with GMC to try to purchase a new vehicle and get mine bought back, but it's been a whole process but I'm trying to work with Moses so I can purchase a new vehicle but they won't call me back and i feel like its because they know something is defective. The engine had a Regen done before i purchased it and now all of a sudden the cars engine is Done. Now when this happened the battery got so hot my car started smoking we originally thought it was the starter. Because when it stopped working we were at a Toll booth and pressed the break and the stop start kicked the engine off and it never came back on. Even now if you try to start it the battery gets hot and the starter smokes. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11609485August 19, 2024
POWER TRAIN, SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Break booster pressure sensor and engine underbooster causes the car to slam on breaks or not break at all.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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