2022 GMC Acadia electrical problems

Filed Sep 14, 2026 · Electrical, Visibility · IN

What failed & is it available? The infotainment/radio module failed entirely due to an OTA software update (Codes: U18B4, U0184, B1325). The vehicle and component are fully available for inspection upon request. How was safety at risk? The federally mandated backup camera is now too faint/dim to read, destroying rearview visibility. Bluetooth/hands-free phone pairing is completely disabled, increasing driver distraction risks and preventing compliance with hands-free driving laws. Is it confirmed by a dealer? Yes. A local GMC dealership inspected the vehicle and confirmed the module is bricked, quoting $2,286.00 for a hardware replacement. Inspected by manufacturer/others? It has been inspected and confirmed by the local GMC dealer network, but GM corporate has refused to physically inspect or resolve it. Prior symptoms? No prior warning lamps or symptoms occurred. The system functioned perfectly until it instantly crashed during the remote update on August 10, 2026, at 9:00 PM.

Filed May 28, 2026 · Electrical, Transmission · TN

This vehicle was bought brand new and has received proper maintenance from one dealership since purchasing. I had to replace the thermostat and radiator before owning the vehicle three years. Within two years of owning the vehicle, my battery went out, which I thought seemed a little early. Then shortly after, I noticed that my locks weren’t engaging when I took my car out of park. Then my car wouldn’t even lock. When I tried to do it on the door control, nothing happened, then when I used my key to do it, it caused the alarm to go off and I couldn’t get it to stop. This resolved after a day, and then it rained again, and it started again. This time, my car wouldn’t unlock and I was trapped in my vehicle and had to open the trunk to get out. This is a known issue according to GMC with no fix. I took it to the dealer, and the codes were saying BCM and told it was being replaced but instead was “serviced”. This issue has begun again, and now I’m being told the locks are the issue and not the BCM, and that may not be covered under warranty. Not being able to get out of your vehicle or not being able to lock your car is a safety issue for passengers leaving them vulnerable to theft, someone entering their car while they’re in it and hurting them. I have had so many issues out of this vehicle and I do not believe I should have to pay for a repair that is a safety issue KNOWN TO THE COMPANY. I feel unsafe driving this vehicle now and it doesn’t even have 60k on it. So I’ve estimated on the date of the first incident and the new one just Happened this week. The information about this issue can be obtained from my dealership and GMC as it is a known issue with no real fix.

Filed Jan 11, 2026 · Brakes, Electrical · CA

purchased the vehicle in good faith, unaware that the check engine light was illuminated at the time of purchase and not informed that this indicated a serious mechanical or emissions-related issue. After purchase, the dealership repaired an emissions-related problem, and the check engine light was no longer present when the vehicle was returned to me. However, within three days of having the vehicle back in my possession, I began experiencing additional issues, including electrical malfunctions and abnormal noises coming from the front wheels. These problems caused the vehicle to feel unsafe to operate and raised serious concerns about its reliability and overall safety. Due to these concerns, I returned the vehicle to the dealership immediately.

Filed Jan 9, 2026 · Brakes, Electrical · 28,000 miles · CA

The contact owns a 2022 GMC Acadia. The vehicle was recently purchased, and at the time of purchase, the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the emissions system had failed. The vehicle was repaired. The contact stated that on a separate occasion, three days after the vehicle was picked up from the dealer, there was an abnormal sound coming from the vehicle. The vehicle was taken to the dealer, where it was determined that the rotors and brakes had failed, and the lining for the front two wheels was damaged. In addition, the contact informed the dealer that all four windows failed to function as intended. The contact stated that the buttons to roll up or down the windows failed to operate as needed. Additionally, while depressing the brake pedal, the vehicle vibrated abnormally. The contact stated that when the radio was turned on, there was an abnormal sound coming from the radio. The vehicle remained at the dealer unrepaired. The contact was provided a loaner vehicle. The contact sent an email to the manager at the dealer regarding the vehicle. The contact was offered assistance. The following day, an employee from the dealer reached out and informed the contact that no assistance would be provided and that if the rental was not returned, it would be reported as stolen. The contact stated that she was threatened after the employee realized that she had thought about filing a Lemon Law complaint. The manufacturer was not made aware of the failure. The failure mileage was approximately 28,000.

Filed Nov 28, 2025 · Electrical · FL

I have a faulty coolant temperature sensor or thermostat in which the fan is running loudly and temperature gauge is not working

Filed Nov 23, 2025 · Electrical · MI

The entire dashboard instrument panel and entertainment screens frequently go black on 2022 ACADIA. This occurs intermittently several times per week and has occurred since purchase in Nov 2024.

Filed Nov 23, 2025 · Electrical, Engine · MD

Multiple times an alert has been given for "Driver assist temporarily reduced, drive cautiously". Additionally, the check engine light has come on, with codes for the cooling system. Cooling system fan (HVAC Blower) remains on after shutting off vehicle for anywhere from 5-15 minutes. Coolant levels have been checked and are correct. Heat & AC function, however the thermostat gauge on the instrument panel does not read any temperature at all. At this time, the vehicle has not been taken to the dealership for assessment due to financial constraints.

Filed Sep 9, 2025 · Electrical, Steering · LA

I have had multiple sensor issues with my Acadia since reaching 60000 miles. Currently, there is a thermostat sensor causing hard shifting, No cold air blowing from the AC, stabilitrack, traction control, steering assist reduced and fan running after turning off. I would not report it but I am in a facebook group where MULTIPLE people are reporting having the same issue in their Acadia's.

Filed Sep 6, 2025 · Electrical · OR

Automatic locks are triggering while driving and soon after vehicle is parked and powered off.

Filed Apr 15, 2025 · Electrical, Engine · TN

My Acadia has had a stuttering problem and we have taken it to the dealership many times. They finally changed the torque converter but that didn’t fix it. Now today (4/15/25) I got home and I was getting a steering assist reduced error code and then when I turned my car off the fan went as high as it could and wouldn’t turn off. Finally after a bit of time it turned off. I got my car 4/28/22