2025 GMC ACADIA Complaints

We filled a report on 04/04/2026 with NHTSA at 12:16 pm but can't find a copy of the whole report. My husband John Chandler was driving our 2025 GMC Avadia Elevation. He was backing out of a parking place when he noticed it wouldn't stop while putting his foot on the break. He was able to put it into drive and it lundged forward and wouldn't stop. He kept pushing with both feet on the break and wouldn't stop. I tried pushing the start button to stop but because his feet were on the break it would restart so then pushed the park button and it stopped as we hit the building. The air bags did not depoy so not going that fast. I pushed the button for 911 and they came on to assist and call police. They asked if everyone was al right and other questions. Lucky no one was hurt and thank God for that. Tow truck was called and taken to local tow yard. The 2025 Acadia was transported to the repair shop but has not been inspected by the insurance company or GMC yet. After repairs are complete it will be taken to the local GMC dealer Ron Smith in Merced, CA for inspection. We did not notice andy warning messages prior to the accident.

I got into my car to leave, I placed my phone on the wireless charging pad. When I got to my location about 10 minutes later, I grabbed my phone and went to put the wrist band attached to my phone around my wrist. The wrist band is a metal chain and it burned me on the side of my wrist and top of hand. I took the wrist band off as fast as I could, then touched it with my fingers to make sure that is where the sting was coming form, and it was. The passenger in the car also confirmed that the wrist band was dangerously hot. I took pictures of the burn marks it left on my wrist and hand.

The contact owns a 2025 GMC Acadia. The contact stated that while driving 70 MPH, the sunlight reflecting off the dashboard chrome onto the windshield was blinding, forcing the driver to use a cardboard to protect their eyes. The contact stated that the failure had been recurring while driving. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was notified of the failure via an online chat. The failure mileage was approximately 10.

While backing out of a parking place my husband noticed he couldn't stop the 2025 Acadia and almost hit restraunt behind us, while pusing on the break. He then started to go forward and kept saying "I can't stop it, it won't stop, I'm pushing on the break." The vehicle then went forward and couldn't stop even pushing on the break. I tried pusing the button to turn off the 2025 Acadia a couple times (possible turning back on and because he foot was on the break restarted the vehicle) and then pushed park to see if that would stop. We hit the building in front of us and stopped. The air bags did not deploy so not going that fast. I pushed the button for 911 and they came on to assist and call police and asked if everyone was all right and other questions. Lucky no on was hurt and thank God for that. Tow truck was called and taken to local tow yard.

I purchased my 2025 GMC Acadia on March 26, 2025. // My vehicle began to have electrical/communication/system issues in August 2025. // I took my vehicle to the dealer to address these issues at this time. When I got to the dealership, a representative performed diagnostics, and said "I can't even get a read on this. There is no signal coming from your module. You need to contact OnStar about this." // I called OnStar, and they ran a test, and stated that it is a manufacturing defect that needed to be handled with GMC. //No one informed me of the severity of the safety implications involved. // In March 2026, my vehicle was inoperable. The module controls everything, and was draining the battery at a severely high rate. I had my vehicle towed to the dealership. They tried to deny all liability and said that they weren't the dealership that sold me the vehicle. // I had my battery jumped so I could take it from the dealership have a new battery installed. My vehicle stalled and shut off while I arrived at the Auto Parts store. *** Answer to Questions: Q1: Yes. My vehicle is available for inspection. It is at the dealership. // Q2: My safety and others were put at risk because the brand new batteries were constantly draining and making me stall out in mid-traffic without having any control. // Q3: Yes. The problem has been confirmed by the dealer. They tried (and still are trying) to avoid responsibility. Other reports show that this is a significant safety issue with many GMC vehicles. // Q4: Yes. The vehicle was inspected by the GMC dealership. This is day-16 with no solution. // Q5: Yes, there were issues with the car, as stated above. But absolutely no indication that it would be safety issue. My engine was running normal the night before. No signs that the battery was low or dead and prohibit me from driving safely or that it would shut off.

The vehicle has a serious transmission/drivetrain defect that repeatedly occurs when accelerating from a complete stop, especially onto an incline. The vehicle sometimes does not respond at all when the accelerator is pressed and fails to move, even though acceleration is being requested. In one recent incident, it remained stopped for about one minute before finally responding. During these events, the vehicle jerks and shakes severely and fails to gain speed as expected. This creates a major safety risk at stop signs, intersections, and uphill starts because the vehicle may not move when needed and cannot keep up with traffic. The problem has worsened, and during one of these incidents the check engine light came on. I have video evidence showing the loss of response to accelerator input, severe jerking/shaking, and the check engine light illuminating during the same event. The issue has been reported to dealers and GM customer service but has not been properly resolved.

This is ongoing from the purchase of the car. 1) Infotainment computer screen daytime illumination is so dark as to be a major safety issue as it causes too much time looking away from the road to operate the system. If you wear sunglasses you cannot see the screen at all. The dealer says nothing can be done to improve the problem. 2) Right rear tail light stopped working after 500 miles. Replacement requires dropping the rear bumper and quarter panel. The dealer actually damaged the body of the car while replacing the light. Where are the days of changing out a light bulb? 3) At 1200 miles the transmission torque converter is chattering and slipping on cruise control at 50 MPH. 4) Engine noise is very loud during acceleration. Seats seem flat with no bolsters and little cushioning.

The vehicle experiences a transmission/drivetrain defect involving delayed gear engagement, hesitation, and apparent slipping. When accelerating from a complete stop (especially onto an incline) the engine RPM increases but the vehicle fails to accelerate as expected. The vehicle jerks and shakes violently and is unable to gain speed. This issue is intermittent but highly repeatable and occurs almost every time when there is a slope immediately after a stop sign. It results in loss of acceleration, violent shaking, and inability to maintain or build speed, creating a serious safety risk in traffic. It first happened around 1 year (early 2026) after the new car purchase (Nov 2025). There are no warning lights or messages. The dealer claimed they were unable to reproduce the issue during a brief test drive without me present and incorrectly attributed it to a bulletin without performing a detailed diagnosis or repair or looking at the video we recorded on the issue. The issue persists and affects safe operation of the vehicle. No inspection has been done by police or insurance. In one instance, this occurred while other vehicles were approaching from behind, creating a dangerous situation where I could not accelerate to match traffic flow. This resulted in a high risk of being rear-ended due to the unexpected loss of acceleration. I am aware of other consumer reports describing similar transmission-related symptoms such as slipping, hard shifting, and hesitation in this model. Some complaints describe transmission issues occurring at low mileage without warning lights.

Automatic brake engaged unnecessarily/ unexpectedly while driving forward at a low speed. There was no reason for the brake to engage. There were no objects or people infont of us. This has happened twice in less than a month. Both times we were in a forward motion. It could have been a serious situation if the car behind us had been any closer when we suddenly breaked for no reason.

The contact owns a 2025 GMC Acadia. The contact stated that while driving 35 MPH at nighttime, there was an abnormally loud explosion and the contact became aware that the sunroof had exploded unexpectedly, causing shattered glass to fall inside the vehicle onto the contact's head, face, and body. The contact stated that two of her children were occupying the third-row seats when the failure occurred. The contact stated that a larger quantity of shattered glass fell near or in the car seat of the contact's son, who was not occupying the vehicle during the failure. There was no reported injury. The vehicle was taken to the dealer, where the contact was informed that the sunroof needed to be replaced; however, the repair was not covered under warranty. The contact was referred to the insurance company for assistance. The dealer informed the contact that an engineering inspection had been requested. The vehicle was not yet repaired. The manufacturer was contacted and informed that the vehicle could be repaired under warranty at the discretion of the dealer. The failure mileage was approximately 9,000.