2023 GMC Acadia problems

“Vehicle Information: 2023 GMC Acadia VIN: [XXX] Description of Safety Defect: While operating the vehicle, a sudden and total loss of propulsion occurred without warning. The transmission completely disengaged from the drive gears while the vehicle was in motion. When depressing the gas pedal, the engine freely revved up to approximately 3,000 RPM, but no power or torque was transferred to the wheels, leaving the vehicle entirely stranded and unable to move. This severe mechanical failure matches the exact symptoms, hazards, and mechanical behavior detailed in NHTSA Campaign Number 23V172000 (General Motors Safety Recall N222389310) regarding a dimensionally incorrect transmission sun gear that causes driver-side half-shaft separation. My specific VIN is currently excluded from the active recall population, despite experiencing the identical manufacturing defect and catastrophic loss of motive power. This creates a severe highway safety hazard and a rolling/rollaway risk. I am requesting that the NHTSA investigate an expansion of the recall population for the 2023 GMC Acadia to include this vehicle.”

“The contact owns a 2023 GMC Acadia. The contact stated that while reversing out of the driveway at 2-3 MPH, the brake pedal became firm for 3–5 seconds. The contact was able to depress the brake pedal after several attempts. The messages “Low Engine Power” and "Service ESC" were momentarily displayed after the failure. The vehicle was shifted into park(P), and the check engine and traction control warning lights illuminated. The check engine warning light remained illuminated. An independent mechanic diagnosed the vehicle at the residence and retrieved DTC: C05CC. The dealer was notified of the failure via a voicemail message. The failure mileage was 80,606.”

“TELEMATIC CONTROL MODULE WENT OUT. ON RESEARCH, IT IS A COMMON PROBLEM AND THERE IS NO FIX BECAUSE THE MODULE IS BACK ORDERED. NO TIME GIVEN FOR WHEN AVAILABLE. WE WOULD LIKE TO ADD OUR NAME TO SEE IF IT CAN BE INCLUDED IN A RECALL. [XXX] [XXX] [XXX] [XXX]”

“My 2023 GMC Acadia has a toe link issue in the rear suspension. This is according to the GMC Service Department in Marquette MI. Is this a possible safety issue, I really don't know. It does make a horrible clunking sound when I steer sharply which vibrates the car. So I definitely believe this does affect the steering. No question I will have to get this fixed ASAP.”

“The car abruptly died in motion. Backing up it died and locked itself in park. I had no way to move it out of the road. There were no warning lights nor did the car stutter or seem any different. I was also nightime making me invisible to other drivers. There was no way to shift the car from park to neutral to get it out of the road. After the incident Onstar sent an email with an error code P023F. The fuel module. I realized the 2021-2022 were under recall but not the 2023 i have. I purchased my 2023 in 2022 it likley was fitted with same modules that were under recall. I loved this car but that was such a frigntening ordeal I will no longer have it nor will i Purchase a GM product. I was told by the dealer sales manager that it wasn't under warranty and roadside assistance would not cover towing nor would the dealer cover repair. I reach out to another dealer and got a totally different answer. They fixed it but could not gurantee or actually even be convincing that it was a fix. I wan't other owners to be more aware of this issue to avoid tragedy. I do realize things tear up. But, this was totally preventable knowing the issue was never corrected.”

“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…”