2025 GMC Acadia problems

“On October 23, 2026 at about 7:25 AM, while my wife was driving our leased 2025 GMC Acadia (20,773 miles) with our son in the car, the vehicle displayed 'Brake assist failure. Press hard to brake. Speed limited.' The ABS and traction control warning lights came on and the brake pedal became very hard to press due to loss of brake assist. No crash or injuries occurred. This failure matches the eBoost electronic brake control module issue under NHTSA Engineering Analysis EA26006 covering 2024-2026 GMC Acadia. My wife is afraid to drive the vehicle. The vehicle is currently at the dealer for repair. I am requesting that NHTSA record this incident and that GM be required to remedy this safety defect and release us from the lease.”

“Dropping my children off at school, 4 lights came on on the dash. Two messages came across my dash as well. Service esc service abs. EBCM master cylinder needed to be replaced at local GMC dealership.My brakes were failing…This is a known safety issue by GMC and there’s no recall!”

“Engine cooling system malfunction, Ive had to receive maintenance on my Acadia 2025 elevation 3 times in the pass 2 months for the same issue, The coolant system. This is becoming a reoccurring issue that needs to be investigated thoroughly. Ive had to get a rental car all 3 times, and this is becoming frustrating and financially draining. My biggest concern is what is to happen once my warranty expires? guess I'll be paying a note and repair cost until a recall is opened on this issue and then will have to wait for reimbursement. This is horrible to say this car was made 2 years ago. Attention is needed on this defective part. I'm so frustrated to I might just trade in this vehicle. I pay for dependability and reliability in the amount of 1300.00 monthly, but only receiving a financial headache.”

“The center console infotainment system is too dim to see during the day leading to distracted driving during daylight hours trying to use it's controls that are very difficult to see especially while driving.”

“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…”

“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.”