2023 GMC Acadia Driver assistance Problems

While driving my 2023 GMC Acadia, I experienced intermittent abnormal brake pedal behavior. When applying the brakes normally, the pedal would travel partway and then suddenly encounter resistance/catch accompanied by a click, causing the vehicle to brake abruptly and unexpectedly. The vehicle remained straight, but the braking action was significantly harder than intended. This problem has created a serious safety concern. On one occasion, the unexpected braking behavior nearly resulted in my vehicle being rear-ended. I had the vehicle inspected at a GMC dealership, as well as by the dealer that I purchased the vehicle from. The problem was initially intermittent and was not reproduced during the first two inspections. I recorded a video of the braking behavior to document the issue. The vehicle has now been evaluated by GMC for a second time, which states that a failure has been diagnosed and that the vehicle requires replacement of GM part number 85718957. The estimated total repair cost is approximately $3,030. I contacted General Motors regarding assistance with the repair, but GM declined to provide goodwill assistance despite this sounding like a broader issue. I am concerned that this may represent a safety defect involving the vehicle's braking system and/or brake assist system. I am submitting this complaint so NHTSA has a record of the failure and can consider it along with other reports involving similar braking-system issues.

NHTSA ID

11768312

Incident

Sep 30, 2026

I find the location of the lower gear shifters + and - to be physically far away from a driver's normal reach, making a driving hazard. If you want to change gears as is typical in mountain driving in steep descents, the driver has to lean awkwardly away from all mirrors and standard driving position making it a potentially hazardous situation for the driver and occupants to be in. It has nothing to do with comfort, but rather normal functionality, keeping the driver and their attention unadjusted on the road, all surroundings with minimal, if any changes to their physical posture while in the drivers seat. The location of the gear shifters are in a totally unorthodox location, nearer to the passenger, rather than the driver.

NHTSA ID

11753346

Incident

Jul 28, 2026

Infotainment system freezing, screen shaking, touch screen not working, disconnecting from android auto, unable to connect to phone.

NHTSA ID

11726886

Incident

Jan 12, 2026

While driving under normal conditions, the vehicle experienced a sudden, violent deceleration. The emergency braking and collision avoidance systems activated spontaneously, as if the vehicle had struck or was about to strike an object. There was no obstacle, impact, or external threat present. This uncommanded braking caused significant physical stress and injury to the occupants. Critically, multiple safety systems failed during the event: The seat belts did not lock, failing to restrain the occupants; The airbags did not deploy, despite the severity of the deceleration; no warning indicators or diagnostic alerts were present before or after the incident. These failures directly contributed to physical injuries, including TBI (concussion, spinal trauma, etc.) which required emergency medical treatment and ongoing care.

NHTSA ID

11681063

Incident

Aug 7, 2025

The contact owns a 2023 GMC Acadia. The contact stated that on several occasions while driving at various speeds, the vehicle began jerking with the "Service Stabili-trak" message displayed. The vehicle was taken to a dealer but was not diagnosed; however, the dealer tightened the battery terminal. The contact stated that the failure persisted. The manufacturer was notified of the failure. The failure mileage was 31,000.

NHTSA ID

11627581

Incident

Nov 1, 2024

Mileage

31,000 mi

Car's back up camera screen has gone black on several occasions. The vehicle has been in the repair shop , this is my fourth time trying to get it repaired. The screen goes black with a red circle and triangle on the screen when the car is put in reverse. This makes backing up difficult because of the vehicle size and blind spot . This problem developed in the first month of having the vehicle and again the vehicle is back in for repair the fourth time for the same issue I've had the vehicle in service for eleven months.

NHTSA ID

11608665

Incident

Oct 2, 2023

When approaching on coming traffic with bright light on high beam, my car will not change from high beam to low beam , nor can I manually. change. also Right mirror has indicator of on coming traffic approaching comes on for no reason

NHTSA ID

11584011

Incident

Apr 17, 2024

Shortly after leasing the vehicle in December of 2022 I noticed the transmission would slip when accelerating. It also jumps when down shifting as I'm slowing down - as well as after place the car into drive. I did bring the vehicle back to GMC in early 2023 explaining the aforementioned. I was told that there was too much transmission fluid which was the causing the issues I was experiencing. They reduced the fluid levels and sent me on my way. Unfortunately their assessment and solution did not remedy the problem. I intend to bring the vehicle in again, but based on past experience, I will be told nothing is wrong. Lastly, I've done some research and it appears I'm not the only person experiencing the same issue. I'm hoping that reporting this issue will lead to an investigation of potential safety issues.

NHTSA ID

11548177

Incident

Apr 7, 2023