GMC Acadia Complaints

5,595 consumer complaints on file.

#11688629September 20, 2025
STEERING, ENGINE, LANE DEPARTURE: ASSIST
While driving at highway speeds, a warning appeared on the Driver Information Center (DIC): “Steering Assist is Reduced – Drive with Care.” Simultaneously, the temperature gauge was stuck on “C,” the radiator cooling fan ran at high speed, and the air conditioning stopped blowing cold air. After researching the issue, I discovered that these symptoms are commonly linked to a failing thermostat—a known and widespread problem with GM’s 3.6L LGX engine. Unfortunately, replacing the thermostat on this engine is not a simple repair, often requiring significant labor and cost. The most concerning aspect is the loss of steering assist, which poses a serious safety risk, especially at highway speeds. Given the frequency of this issue across many GM vehicles, it’s clear that this is a defective part and not an isolated incident. GM should take responsibility and cover the cost of repairs for affected vehicles. This is not just a mechanical failure—it’s a safety hazard that deserves immediate attention. I'm attaching a picture of the message as well a paid repair invoice from the work the dealer performed to replace the thermostat on my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687789September 17, 2025
AIR BAGS, SEATS
I have pictures the seat, the airbag in the seat.The driver's seatIt didn't come through the seat, but it deployed or ruptured.But it didn't bust through the seat.It's like a big bubble. I was just driving and I heard a pop but it didn't come through the seat. It left the lump in the seat. I still think it's dangerous, cuz. It's busted.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687801September 17, 2025
UNKNOWN OR OTHER
Shift to park issue car is in park car is not recognizing it and won’t turn off accessories
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687867September 17, 2025
POWER TRAIN
The contact owns a 2018 GMC Acadia. The contact stated that while shifted into park(P), the vehicle was unable to be turned off. The message "Shift to Park" was displayed on the instrument panel even though the gear shifter was in park(P). The gear shifter was shifted to park(P) and wiggled several times before the transmission was properly shifted into park and the vehicle was turned off. The contact stated that the failure had occurred once before, and the battery cables were disconnected to turn off the vehicle. The contact became aware of an undisclosed recall online; however, the VIN was not under recall. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 51,800.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687899September 17, 2025
POWER TRAIN
The contact owns a 2018 GMC Acadia. The contact stated that while attempting to turn off the vehicle, the "Shift to Park" message was displayed, preventing the vehicle from turning off. After researching the failure, the contact linked the failure to NHTSA Campaign Number: 23V172000 (Power Train). The local dealer was contacted and informed the contact that a diagnostic test was needed. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687509September 16, 2025
UNKNOWN OR OTHER
The transmission in my 2017 GMC Acadia needs to be replaced. According to an article from Qulll&Arrow, LLP, transmission problems affected the 2017, 2018, 2019 and some 2020 models, however, my VIN number is not included in this. I am reporting this so it can be documented in case other owners come forward and a pattern can be established.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687520September 16, 2025
POWER TRAIN
The contact owns a 2018 GMC Acadia. The contact stated that while parking the vehicle, the gear shifter was shifted into park(P); however, the “Shift to Park” message was displayed. The contact shifted the gear shifter back and forth and then shifted into park(P) before the proper gear was recognized. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687331September 15, 2025
ELECTRICAL SYSTEM, ENGINE, VEHICLE SPEED CONTROL
Got onto the interstate and suddenly my car stopped but didn’t kill. My traction control light said off and then it said reduced engine power and my fuel went down to E. I couldn’t go but my car was still running. I killed it then waited a minute and started it again and it started moving slowly. Then it said service stabliltrak and traction system but since the light have went off. Around the same time I started hearing popping and crackling sounds from my speaker and now I have no interior sound at all just popping sounds no matter if my car is started or not. I’m scared it’s going to catch on fire or something
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687338September 15, 2025
FUEL/PROPULSION SYSTEM
Fuel gauge is incorrect. It says I went 20 miles when I only went two. Then when car is in park the gauge goes back up but when moving the gauge goes down quickly. This had caused me to run out of Gas when I shouldn’t have and it’s adding miles to my odometer that I never went or it’s fluctuating and that’s faulty. NHTSA CAMPAIGN NUMBER: 14V223000 Inaccurate Fuel Gauge Reading An inaccurate fuel gauge may result in the vehicle unexpectedly running out of fuel and stalling, increasing the risk of a crash. NHTSA ID Number: 14V223000 Manufacturer General Motors LLC Components ELECTRICAL SYSTEM, FUEL SYSTEM, GASOLINE Potential Number of Units Affected: 51640 Summary General Motors LLC (GM) is recalling certain model year 2014 Buick Enclave, Chevrolet Traverse, and GMC Acadia vehicles manufactured March 26, 2013, through August 15, 2013. In the affected vehicles, the engine control module (ECM) software may cause the fuel gauge to read inaccurately. Remedy GM will notify owners, and dealers will reprogram the ECM to correct the fuel gauge reading, free of charge. The recall began on June 27, 2014. Owners may contact General Motors at 1-800-521-7300 (Buick), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GM's number for this recall is 14007. Notes Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov. 3 Associated Products 12 Associated Documents
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687340September 15, 2025
ELECTRICAL SYSTEM, ENGINE
If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash. NHTSA ID Number: 14V614000 Manufacturer General Motors LLC Components ELECTRICAL SYSTEM Potential Number of Units Affected: 106307 Summary General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles. In the affected vehicles, the chassis electronic module may be internally contaminated, resulting in an electrical short. Remedy GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GMs number for this recall is 14515. Notes Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov. 22 Associated Products 26 Associated Documents
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687173September 14, 2025
ENGINE, POWER TRAIN
My 2020 GMC Acadia has experienced significant transmission issues, including [slipping / shuddering / “Service Transmission” warnings / loss of drive]. The problem has been diagnosed as a torque converter/transmission failure. GM has acknowledged known defects and issued recalls for 2019–2020 Acadia transmissions related to missing bolts in the start-stop accumulator endcap, which can cause fluid leaks and lead to torque converter/transmission failure. Many other owners have reported similar transmission issues, suggesting a systemic defect with the 9-speed transmission used in these vehicles. Despite these known issues, GM has declined to provide assistance with repairs. This failure compromises the safe operation of the vehicle, and I believe it warrants further investigation and potential recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687148September 14, 2025
SERVICE BRAKES, STEERING, FORWARD COLLISION AVOIDANCE: WARNINGS
Bought new 2025 GMC Acadia in March of same year. At ~4500 miles I started getting Brake Assist, Forward Collision and Electronic Stability Control warning messages on dash. Upon researching, this is an increasingly common issue with this vehicle that can render the brakes unusable. I no longer feel safe in the vehicle and want it refunded. Car is now in the shop. Taken in on 9/11. Problem has been confirmed by dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687140September 14, 2025
SERVICE BRAKES
While driving my 2025 GMC Acadia Denali on [XXX], from Omaha, NE, to Laurie, MO, I received a "Service Brake Assist" warning lamp as well as "Check Engine" and "ABS" warning lamps in St. Joseph, MO. At this point, my vehicle had 6,945 miles on it. We turned around and went back to Omaha. We dropped the car with Gregg Young Chevrolet at 7,095 miles. The dealership identified the issue as EBCM and master cylinder assembly failure. It replaced the EBCM and master cylinder assembly, test drove the car 7 miles and told me my Acadia was ready to go. I did not make it out of the dealership parking lot before the "Service Brake Assist" and "Check Engine" lights came on again. The dealership again identified master cylinder assembly failure, again replaced said assembly, test drove it 10 miles this time and told me my Acadia was ready to go. I got my Acadia and made it 1.1 miles before the "Service Brake Assist" light again came on. I promptly returned my Acadia to the dealership, where it sits today. At the date I am typing this (9/14/25), the dealership has had my Acadia since 8/22/25. The master cylinder has now failed 3 times at this point. First, after 6,945 miles, second after 7 miles, third after 11 miles. The safety of myself and my family was put at risk by the potential failure of my brake system. This should not happen on a brand new car with less than 7K miles and darn sure not 3 times in a row! Yes, the problem has been confirmed by the dealer 3 times. The dealership is now reaching out to GM to determine what to do. I don't have personal knowledge as far as inspection of the component by the manufacturer. It is my understanding from reading about the issue, that both GM and the NHTSA are well aware of this issue and are investigating. I am also aware of pending class-action lawsuits regarding the brake assembly failure. The first time I received the warning lights is when the system failed (or was starting to fail). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 5
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686746September 11, 2025
SEATS
No traffic collision. Preemptive report. Headrest positioned so far forward that head is forced into a downward position. Unable to comfortably maintain eye contact with the road in this position (photo attached). Only remedy is to have headrest positioned so far down that it would cause decapitation in a collision. I was not aware of the decapitation risk when purchasing the vehicle. GM initially stated the dealership should have remedies in the form of alternate parts to be installed at the dealership. Dealership stated that is not the case and they do not have any resolution available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686211September 10, 2025
SEAT BELTS
The contact owns a 2019 GMC Acadia. The contact stated the center rear seat belt failed to extend as needed. The vehicle was taken to the dealer, who was unable to determine the cause of the failure or repair the vehicle. The manufacturer was not informed of the failure. The failure mileage was 72,456.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686250September 10, 2025
ELECTRICAL SYSTEM, POWER TRAIN
SHIFT TO PARK WARNING. VEHICLE WILL NOT POWER DOWN.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686365September 10, 2025
AIR BAGS
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686054September 9, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER, FUEL/PROPULSION SYSTEM
The shift to park in my 2018 GMC Acadia was faulty. On many occasions and randomly, the car would be in park but would not turn off, saying I needed to shift it to park in order to turn the car off. This has left me unable to turn my car off resulting in dead batteries and missed appointments and being late for work. This defect is well documented by GM in TSBs PIT5616A, 18-NA-297, and 19-NA-206, which describes the exact symptoms and repair that I had to have completed. This problem has been on going and as a teacher I cannot continue to be late for school because my car, though in park, would not turn off. Given GM’s prior acknowledgement of this defect, I believe reimbursement is warranted. I have never been notified of a recall on this.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685874September 9, 2025
ELECTRICAL SYSTEM
AFTER PUTTING CAR IN PARK AND TURNING ENGINE OFF, SHIFT TO PARK WILL APPEAR ON DASH- CAR ALREADY IN PARK .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685932September 9, 2025
ELECTRICAL SYSTEM, STEERING, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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