GMC Complaints

When placing the vehicle in reverse, the infotainment screen goes to full brightness on the reverse camera, making it difficult to see at night by lighting up the cabin causing interior reflections when trying to see out the windows at mirrors or behind the vehicle. There is no way to adjust the brightness setting. This is a pointless feature as the camera becomes the required visual point and is sometimes obscured by dirt or water so the driver is forced to fight the bright useless screen to see out the windows.

The electric power steering failed while accelerating into a turn from a stop at an intersection. The wheel was jerked from my hands, and the engine stalled, all electrical failed momentarily. Within a couple of seconds everything returned to normal. This has happened several times since I purchased this vehicle. Also the electrical power steering drops out quite often at low speeds, such as in parking lots. No warnings have ever been given. In May of 2021 the dealer replaced the steering rack, the problem has continued intermittently to this date. I have researched for recalls on this problem and found that GMC issued a recall for years 2014-2017, and am amazed that they could just declare the problem fixed, and leave such a dangerous problem unresolved!

Code P0128. While driving the vehicle gives a "steering assist reduced drive with care" the engine coolant temperature gage goes to 0 and the cooling fan runs until you turn off the car, and the a/c stops working. After replacing the engine coolant temperature sensor and harness the vehicle still does it. There are hundreds of reports of this happening online in forums. This is a safety issue when the vehicle is being driven.

"Service parking brake" "steering assist is reduced drive with care" comments showed up on screen…check engine light on, truck shaking/ vibrating completely as if wanting to turn off this all happened while driving on the road and randomly happened…please help..very Concerned

Service Trailer Brake System keeps coming on while driving. Dealership says nothing wrong although they replaced fuse. Still happening. Only thing that seems to work is pulling off road and restarting vehicle. That is only a,temporary "fix". Comes back a few days later. This is a safety issue as 1) distracts me while driving 2) I pull an 8,000lb travel trailer with the vehicle.

This vehicle has a severe water leak after rain event from body. Leaks into electrical, floor boards, roof. Dealership not able to locate water leak location. Have been working on it going on a month. We recently purchased the vehicle used.

On Monday, 10/23/23 I was driving up a mountain to go on a leisurely hike at Fremont State Park, CA. While I was ascending up the mountain the "Service Power Steering and Service Stabilitrack" warning dash alert came on. From then on, I lost power steering and had to struggle driving up the mountain. After my hike and having restarted my vehicle, Power Steering returned. However, while I descended down the mountain, I lost Power Steering again and had to struggle steering my vehicle down the mountain (this scared me quite a bit and placed my safety at risk). It's been five days since I had this problem. I haven't had any issues since then. I primarily drive on Highways, but now I'm nervous driving up hills or mountains with switchbacks. No. Right now, I don't have the means to pay for a scan or fix. I'm not planning to drive up a mountain anytime soon. However, before I drive up mountains or hills with switchbacks, I plan to get it checked and fixed if possible. There weren't any warning or messages before this incident.

I have a 2016 GMC Terrain, garage kept and seldom driven, with ONLY 53,260 miles on it. Last night while leaving the movie Theatre in the RAIN my WIPERS stopped working while in motion. I had to drive home in the rain unable to see!!! Looked on NHTSA.gov site and saw where recalls were issued for 2015’s but not 2016’s, although I’m reading numerous complaints for the same occurring on my model suv. Can GMC provide some insight into this?

When turning right or left from a stop, the steering wheel jerks sharply in the opposite direction as soon as the car starts to accelerate. Diagnostic tests and inspection determined that the steering gear is loosing voltage causing the jerk in the steering wheel. The gear has the latest calibration and needs to be replaced. Cost estimate to replace is $2035.63

Dashboard is severely cracked & rattles so badly that it interferes with hearing outside & inside noises & communication. Has gotten worse over past year. Dealer confirmed that the problem was prevalent among several GM models, including my model. I was also told that a class action suit was filed against GMC for this problem, but was dismissed by judicial system.