2020 GMC Terrain driver assist problems

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

Backup camera stopped working and displays a blue screen stating “service backup camera.” This was an issue when the vehicle was under 3 year manufacturer bumper to bumper warranty and was fixed by dealer at no cost. Now this same issue has occurred again approximately 3-4 years later. I thought at first this was an issue specific to my vehicle but now after doing research I see this is an issue across several GMC Terrian vehicles and other GM vehicles. This issue should be fixed by the manufacturer for all vehicles affected. Vehicle owners should not be responsible to fix faulty parts from the manufacturer.

NHTSA complaint #11745463 — an unverified report by a vehicle owner.

BACK OVER PREVENTION: WARNINGS

Backup camera stopped working and displays a blue screen stating “service backup camera.” This was an issue when the vehicle was under 3 year manufacturer bumper to bumper warranty and was fixed by dealer at no cost. Now this same issue has occurred again approximately 3-4 years later. I thought at first this was an issue specific to my vehicle but now after doing research I see this is an issue across several GMC Terrian vehicles and other GM vehicles. This issue should be fixed by the manufacturer for all vehicles affected. Vehicle owners should not be responsible to fix faulty parts from the manufacturer.

NHTSA complaint #11745463 — an unverified report by a vehicle owner.

BACK OVER PREVENTION

The contact owns a 2020 GMC Terrain. The contact stated that upon shifting to reverse(R), the rear-view camera image was blue, and the parking sensor beeping sound was inoperable. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the rear-view camera needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 71,000.

NHTSA complaint #11701734 — an unverified report by a vehicle owner.

BACK OVER PREVENTION: WARNINGS

My backup camera in my 2020 vehicle has failed twice. Once was covered under manufacturer's warranty, and it then failed again 14 months later, which is not covered under warranty. As explained by the dealer, a parts warranty is 12 months if covered under manufacturer warranty and 24 months if paid for by the owner. Different warranties for the same part? Additionally, there is a service bulletin out about this issue as MANY other owners are reporting the same issue. The camera parts are being damaged by "water intrusion". There is NO rust or damage that would be contributing to this, thus it appears to be a manufacturing defect. There is no way I should have had to replace this part twice with only 40,000 miles on the vehicle. (first time at 24,000 miles, second time at 38,500 miles). I feel that the manufacturer should be fixing these as they know it is a widespread problem.

NHTSA complaint #11658372 — an unverified report by a vehicle owner.

BACK OVER PREVENTION

The contact owns a 2020 GMC Terrain. The contact stated while reversing, the rearview camera screen displayed a blue image. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 104,000.

NHTSA complaint #11639943 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

my vacuum pump went out. my brakes went out at 86k miles. very pour design.

NHTSA complaint #11635979 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: WARNINGS

My Terrain has a light that has been coming on for a couple months. Service Brake Assist. I took it to the dealer after my brakes locked up and about $800 after getting it fixed the light continues to come on. The forward collision light comes on every time I start the car. More the check engine light came on and says engine electrical system. What the heck is going on? I love this car and take very good care of it but I feel like the $800 that I just spent was a waste. I fear that I will get in a wreck like when the brakes totally locked up and I couldn't press on them.

NHTSA complaint #11628017 — an unverified report by a vehicle owner.

BACK OVER PREVENTION

The contact owns a 2020 GMC Terrain. The contact stated while in reverse(R), the back over prevention camera displayed a blue image on the screen. The dealer was notified of the failure but offered no assistance. The manufacturer was also notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 58,000.

NHTSA complaint #11623429 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

This GMC I just purchased in October 22 2022 and have been complaining since December 9,2022 the vehicle emergency braking will activate when I'm driving down the interstate or local roads I could be doing 70 and brakes will just lock up throwing me and my son forward , this has happened 4x , Gas Pedal when taking off at red light or pulling out the vehicle is hesitant and will not go this has happened on 3 different occasions. I called roadside on star they said there is a problem with the on star saftey feature will not work properly this was towed 2x to different shops, Also while driving this vehicle it will just ingage itself in park while driving called on star they did diagnostic there was all kinds of Coded for Transmission and Engine as well as Emissions this vehicle is a safety hazard.. And I have tried to take back to dealership where I purchased they keep making excuses to not see this CPO with lifetime Warranty and still under warranty from GMC vechle Mileage was at 29k when problems stared vehicle only has 31k I can't drive this vehicle due to my son's and myself along with others saftey this is ridiculous and also GMC just informed me the Vin # they have for my vehicle and whats on it are two different numbers! Yet nothing is being done I'm paying for a vehicle that I can't drive I have proof GMC knows about the fraud from dealership but GMC says its a sales thing This vehicle has been flooded two mechanics have confirmed and GMC is aware so why not do something I don't know exactly the history and GMC doesn't either please someone contact me GMC this is crazy and you know it's a safety issue with this 2020 GMC Terrain you even said so

NHTSA complaint #11524133 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

None of these features have ever worked

NHTSA complaint #11501918 — an unverified report by a vehicle owner.

LANE DEPARTURE: BLIND SPOT DETECTION

None of these features have ever worked

NHTSA complaint #11501918 — an unverified report by a vehicle owner.

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

None of these features have ever worked

NHTSA complaint #11501918 — an unverified report by a vehicle owner.

LANE DEPARTURE: ASSIST

UNKNOWN...ACTS AS IF ITS A SMART CAR THAT'S NOT REALLY A SMART CAR

NHTSA complaint #11458704 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Not long after I bought my 2020 GMC Terrain my adaptive cruise started disengaging. There are never any warning lights, except the noise and vibration of the seat before it shuts off then tells you it's disengaging. I didn't think anything of it until it's became a regular occurrence in the last month or two. I tell my dealership about it and they drive it but it never disengages on them, so they say nothing is wrong with my vehicle. I have a picture of the "adaptive cruise disengaging" and video of where I can't reset it until after about 15 or so minutes or letting my car set for a while or turning off the engine then it works again. I also have noticed that my auto start/stop hasn't been turning on & off anymore.

NHTSA complaint #11432173 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

On fairly level ground, reduce speed hill descent control msg has activated (12 mile and maxwell area 2x, Rochester Hills Kohls parking lot exit) and once entering river bend dr. vehicle has also has had activated brakes on oak hill street in rochester. the vehicle has less than 4100 miles. very concerning about activated brakes.

NHTSA complaint #11422295 — an unverified report by a vehicle owner.