GMC Acadia Complaints

5,595 consumer complaints on file.

#11740730May 28, 2026
ELECTRICAL SYSTEM, POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740702May 28, 2026
BACK OVER PREVENTION
The contact owns a 2024 GMC Acadia. The contact stated that while back out of his driveway while in reverse(R), the contact hit another vehicle that was also parked in the driveway. The contact stated that back over prevention sensor failed to alert him that a vehicle was in his vicinity; also the vehicle did not apply the automatic braking system when closely approaching vehicle. The contact stated that the failure cause significant damage to both vehicles involved in the collision. The vehicle had yet to be diagnosed or repaired for the failure. The dealer nor the manufacturer had yet to be notified of the failure. The failure mileage was approximately 17,500.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740094May 26, 2026
STEERING, LANE DEPARTURE: WARNING
My thermostat failed in my car, my temp goes out and reads at 0° then my steering assist says it’s reduced. There are many forums online regarding this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740057May 26, 2026
SERVICE BRAKES, LANE DEPARTURE: ASSIST, FORWARD COLLISION AVOIDANCE: WARNINGS
Telematic Modular Control is not working properly and part is on backorder. Dealership and GMC have refused to put into writing that my vehicle is safe to drive; however, they are refusing rental vehicle while awaiting arrival of part. Several of my safety features are not working correctly, my left turn signal went out randomly and my auto breaking has activated when there has been nothing near my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739779May 24, 2026
POWER TRAIN
READ BELOW WE HAVE STATED THE SHIFT TO PARK ISSUE ON MOST GMC VEHICLES
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739189May 21, 2026
AIR BAGS, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Unknown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739205May 21, 2026
POWER TRAIN, ENGINE
The contact owns a 2012 GMC Acadia. The contact stated that the vehicle failed to release from low gear while at a stop. The transmission was backed up. The engine light was illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, who confirmed there were no recalls. The failure mileage was approximately 213,766.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739276May 21, 2026
LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH
The contact owns a 2015 GMC Acadia. The contact stated while the vehicle was parked, the tailgate was opened, however the tailgate failed to function as intended. The contact noticed an abnormal grinding sound and the tailgate independently closed while the contact was removing packages from the trunk of the vehicle. The contact stated that the failure occurred when using the key to open the tailgate or when opening manually. The vehicle was taken to the dealer where it was diagnosed with a failed tailgate actuator. The contact was informed that the tailgate actuator needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 111,222.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739333May 21, 2026
UNKNOWN OR OTHER
When I put the shifter to park, it still dings and tells me "shift to park" and I struggle to make it go away and to be able to make it stop and be able to lock the car. It happens every time I drive it. Thank you
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739334May 21, 2026
UNKNOWN OR OTHER
My car will not shut off when shifted into park. I get a shift into park message.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739392May 21, 2026
ELECTRICAL SYSTEM
Shift to park error Vehicle won’t shut off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738997May 20, 2026
STEERING, ENGINE
I am getting the known P0128 code. My engine says it's cold when it's not, my AC isn't working, and I am getting a message that says "Steer assist reduced. Drive with care". This is a known problem and complaint of the GMC Acadia.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739164May 20, 2026
ELECTRICAL SYSTEM
Imagine wrapping up your errands and stepping into your GMC Acadia to drive home. You arrive and everything seems fine until you park, press the button to shut it off, and a “Shift to Park” message lights up the dashboard. Thinking you might have made a silly mistake, you double-check the shifter, only to realize it’s already in Park. It has become so rampant, has drained my battery and caused anxiety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739034May 20, 2026
POWER TRAIN
The contact owns a 2023 GMC Acadia. The contact stated that while driving, the vehicle lost motive power in low gears while accelerating. There was a slight shudder. There were no warning lights illuminated. The contact stated that the vehicle was shuddering and shaking every 30 seconds. The vehicle was taken to the local dealer, where unknown repairs were conducted under the EVAP warranty. The vehicle was not diagnosed or repaired for the initial failure. The dealer test drove the vehicle but did not experience a failure. The failure recurred after leaving the dealer. The manufacturer was not notified. The failure mileage was approximately 65,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739018May 20, 2026
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
The master cylinder failed under 10,000 miles. I was at 5000 miles. I am reading a lot of people have had issues with the master cylinder in the 2024 early 2025 models. Luckily I was in the driveway barely moving, but man if i were on a highway and it happened it could've been fatal!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738766May 19, 2026
POWER TRAIN, FUEL/PROPULSION SYSTEM
the transmission kept slipping. the car continued to lose power until it just wouldn't go anymore. The mechanic said it is definitely the transmission and drive shaft but my particular VIN is not included. I am looking at $7,000 in repairs on a car I owe $13,000.00
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738841May 19, 2026
ELECTRICAL SYSTEM
UNKNOWN I’m told the micro parking switch is the problem. This is an intermediate issue. This is a well known problem with the GMC Acadias. Their times when I try to turn off the engine, I get a shift to park error message. The car will not turn off, I’m unable to lock the doors and I’m concerned that the car is not in the park position thus and fearful, it can roll away. This has been occurring more often than before.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738919May 19, 2026
ENGINE
Steering assist is reduced Brake assist reduced Seems to be a defective thermostat and sensor .temp gauge is below Normal operating temperature this needs to be addressed by GM should be a recall as this can be a costly repair.Many reports of same issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738784May 19, 2026
SERVICE BRAKES
When backing out of a parking spot of a store , I went to stop and pressing on the brakes nothing happened and I kept rolling backwards. I looked down to confirm I was pressing the brakes and my foot was on the brake pedal pressed firmly. I rolled to a stop put it in drive and checked the brakes and they worked like normal. I made an appointment at the dealership and had an appointment the next day. The said it did not have any codes, it preformed normal and passed inspected so there was nothing they could do about it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738470May 18, 2026
SEAT BELTS
The contact owns a 2015 GMC Acadia. The contact stated that while parked he observed the drivers seat belt that the braided steal cable was broken and the seat belt clasp was barley hanging on. The vehicle was taken to an independent mechanic where it was diagnosed that the drivers seat belt was broke and was hanging off and needed to be replaced. The manufacturer was notified of the failure. The failure was 178,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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