2024 GMC Terrain

infotainment system safety issues. I have video. Multiple times per week when starting the car and backing the rear camera engages. When placing car in drive the rear camera never shuts off, the sound volume doesn't work, the entire infotainment system completely malfunctions. The safety is when attempting to function the controls the volume will turn up and not able to turn it down, the screen flashes and the infotainment systems controls on the steering wheel do NOT function. I've had it to the dealer and they indicate PIC6591A from March 3rd 2025 is logged. When contacting GMC corporate they refuse to give any information. The PIC spans across many GMC vehicles including 2019 models. Why hasn't this been addressed? My son drives a 2024 Chevy Trax and this car has no issues like the my car does. His car also doesn't have the transmission/gear shift buttons like the 2024 terrain does. Anyone else having issues with the GMC infotainment systems, black screen, malfunction? I have video.

The contact owns a 2024 GMC Terrain. The contact stated that while driving at an undisclosed speed, the "Service Vehicle Soon" message was displayed, and the air bag warning light was intermittently illuminated. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 10,000.

Unintended acceleration in forward and reverse: the vehicle experiences unintended acceleration both in forward and reverse. While driving in heavy traffic, the vehicle continues to maintain throttle position for approximately two seconds after releasing the throttle, creating a dangerous situation where the vehicle continues to accelerate towards other cars. This defect requires emergency braking to prevent a collision. In reverse , the vehicle also holds throttle position after the accelerator is released. This results in the vehicle unintentionally accelerating in reverse at a rapid pace. This requires the driver to depress the brake moderately to control the reverse speed. During this event the driver is fighting against the motor with the brake pedal until the vehicle decided to stop accelerating on its own.

The contact owns a 2024 GMC Terrain. The contact stated that while driving at various speeds, the vehicle was hesitating while accelerating. The contact stated that the vehicle was stalling, and the brake pedal was spongy. The vehicle was taken to the local dealer on several occasions, but the failure was not duplicated. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 10.

Driving on slightly uphill 55 mph highway, vehicle started jumping & losing engine power. Engine light came on, I made it to the top as it was slowing down. Pulled off to the side. Put it in park for a minute. Message showing on dash read - acceleration power reduced. Drove it on home (engine light stayed on) parked it & had it towed to dealership the next morning. Got a call from dealership the same afternoon saying the vehicle was ready to be picked up. Picked up later in evening from dealership. They left keys & paper in car for pick up. We still tend the paper left it in the box showing we picked it up. The vehicle drove good back home. Drove it the next day, As I was pulling out from a stop sign, it started jumping again for a few seconds. Got home & had my husband to drive it, as we were coming up a small hill, it started jumping & losing power again engine light was blinking at this point. Dash board read engine power reduced. My husband kept on the accelerater & when we got on top of the hill engine light went off & we drove it back to the dealership & left it to be checked again. They kept the vehicle for 7 days & said they were not able to find concern. We picked it up again. Drove it back home without any incident. It has been parked since we got it home.

The contact owns a 2024 GMC Terrain. The contact stated that while driving at an undisclosed speed and preparing to complete a left turn, there was an abnormal pop coming from underneath the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the driveshaft had fractured. The vehicle was repaired. The contact stated that several days later the contact heard a loud pop, prompting the contact to take the vehicle back to the dealer, who was unable to duplicate the sound. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 1,200.

Vehicle was running but transmission was in PARK. Suddenly on screen in front of driver this message appeared: BRAKE SYSTEM FAILURE 43MPH TOP SPEED WARNING SERVICE ESC. Vehicle was not moving. Engine was running but vehicle was in PARK. I had to drive it home. Very difficult to stop. Brake pedal vibrated violently. Very long stopping distance even at 20MPH. I had the vehicle towed to the dealership from which I had purchased it. I bought this vehicle on 25 Nov 2024. Right now its mileage is 3757. Obviously my safety and that of others was put at risk. The service department at the dealership has not communicated with me at this time. There was NO prior warning nor were there any prior symptoms of this problem. It occurred VERY suddenly.

When accelerating, the engine revved up, switched itself from drive to park, resulting in complete loss of control and the vehicle coming to a sudden stop. The car behind narrowly avoided a rear-end collision by swerving around me. The malfunction indicator light came on for the first time, and the vehicle would not switch out of park. After turning the ignition off and on again, the vehicle would switch out of park. The GMC service inspector ran diagnostics and found fault codes related to the transmission valve components that must be replaced.

The contact owns a 2024 GMC Terrain. The contact stated that while the vehicle was parked, the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed and merging onto the highway, the vehicle experienced a loss of automotive power. The vehicle was taken to a local dealer where the vehicle was diagnosed. The contact was informed that an undisclosed faulty sensor was the cause of the failure. The contact was informed that the sensor needed to be replaced. The contact stated that the vehicle had remained at the dealer for two weeks unrepaired. The manufacturer was not notified of the failure. The approximate failure mileage was 22,000.