GMC Acadia Complaints

5,595 consumer complaints on file.

#11721476March 2, 2026
ENGINE, UNKNOWN OR OTHER
My car will be in park and it always says shift to park when its in park , this is very unsafe. Also when I change gears from park to drive or reverse the RPM revs up gets stuck then drops quick causing the hesitation and then kicks in.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721182February 28, 2026
POWER TRAIN, UNKNOWN OR OTHER
My 2023 GMC Acadia consistently makes a sound at lower speeds when it is changing gears. For example, accelerating or accelerating for stoplights. The sound is kind of a ka clunk. The technician can find nothing and does hear the sound when we go for a test ride. I am worried that the sound indicates a transmission problem. The VIN search does not show a recall for my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720758February 26, 2026
ENGINE, POWER TRAIN
My 2019 Acadia often will not turn off because it has a Shift to Park issue. Apparently it is caused by a faulty microswitch in the shifter assembly that fails to signal the Body Control Module when in park, leading to a persistent warning message, inability to turn off the vehicle and battery drain. It has been going on for at least 4 years. It appears there is a recall for this problem but when I search my VIN number a recall does not come up. There are many posts that say "certain" models in years 2017-2019 but why not mine? It is definitely a safety issue because it does not turn off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720766February 26, 2026
POWER TRAIN
The contact owns a 2019 GMC Acadia. The contact stated that while attempting to park the vehicle, the gear shifter failed to shift into park(P). The vehicle failed to turn off, with the message "Shift to Park" displayed with an audible chime. The contact was forced to move the gear shifter back and forth before it was recognized that the transmission was in park(P). A dealer was notified of the failure and the contact was provided an estimate for the repair. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 69,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720724February 26, 2026
ENGINE, AIR BAGS
The contact owns a 2023 GMC Acadia. The contact stated that with the stop/start feature activated and while attempting to park the vehicle, the accelerator pedal was slightly pressed in order to slowly move the vehicle forward. The vehicle suddenly experienced unintended acceleration and drove forward, over a curb, and crashed into a tree. During the crash, the front end of the vehicle sustained severe damage, but no air bags deployed. No injuries were reported, and no police report was taken. The cause of the failure was not determined. The contact indicated the failure had occurred on multiple occasions. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 5,665.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11720195February 24, 2026
SERVICE BRAKES
Brakes have been squealing since 6500 miles. The dealer resurfaced the rotors and cleaned the pads only for the brakes to be squealing again. The dealer has cleaned the brakes and applied "squeak stop" only for the brakes to continue to squeal. The service guide from GM says if brakes are making any noises they need to be "inspected immediately" however I'm being told there's nothing further to be done. How do I know if the squealing (which is truly happening every time I drive the vehicle) is normal or if there's a larger and more concerning issue?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719617February 21, 2026
ENGINE
The engine is spewing oil from the sides of the engine. This is causing overheating and check engine light to come on. Mechanics cannot get an error read on it. There is no oil leak coming from under the engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719104February 19, 2026
ENGINE, POWER TRAIN
In the process of taking my daughter to the emergency room I receive a dash notification on my recently purchased 2024 GMC Acadia "car overheating, possible engine failure". My gauges were within normal range and being that I was in an emergency I kept traveling. Leave hospital to head home the error message is gone. The following Monday, January 5th, heading in to work I receive the same error message on my dash "car overheating, possible engine failure". Drove to the nearest mechanic, left my car, and they discover a leak in the upper radiator hose. They call with bad news that the part is on nationwide back order. GM admitted to a faulty design, in the process of redesign. A SPAC case with a local GM dealership was opened. GM would expedite my case if I towed to a GM dealer. I would have to pay for the tow. And just how can my case be expedited if the part isn't available? It can't. I was told the redesigned hose is going on the new models currently being built. I have lost all faith in GM. Today is February 19th and my car is still at the mechanic with no ETA on part delivery. I called every GM dealership parts department within 100 miles and get the same response, "we have two hoses with four cars needing it, we have 4 hoses with 8 cars needing it, the hose is hell to find, etc.". Why has GM not issued a recall on the upper radiator hose. If you have a 2024 GMC Acadia, you will incur this same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719045February 19, 2026
ENGINE, STEERING
Temperature gauge dropped to zero or no reading, message displayed on screen "Steering Assist Reduced, Drive with Care", continued to drive speed limit, when parked fan runs after car is shut off, in a few days the temperature gauge started working again, then the cycle repeats about once every 2 weeks for a couple months before engine light came on last week & when checked at a local parts place was told temperature sensor malfunction. Read multiple accounts of this same issue online
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719020February 19, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2021 GMC Acadia. The contact stated that while driving approximately 30 MPH, the vehicle started running rough before the vehicle stalled. The contact attempted to restart the vehicle, but the vehicle failed to restart. There was no warning illuminated. The vehicle was towed to a local dealer, where it was diagnosed and determined that the fuel pump module had failed and needed to be replaced. The dealer informed the contact that the part to do the repair was on backorder. The contact researched online and associated the failure with NHTSA Campaign Number: 20V639000 (Fuel System, Gasoline); however, the model year and VIN were not included in the recall. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 46,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718905February 18, 2026
ENGINE
UNKNOWN After diagnosis at the GMC dealership they stated that it is same issue as released in the following: Special Coverage Adjustments: N212356540 Front Exhaust Pipe N222385510 Special Coverage Front Exhaust Pipe However they CURRENTLY do not cover our GMC Acadia Model year 2022
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718832February 18, 2026
ENGINE
Car was taken in for an oil change at 62k Miles. Dealer advised that it needed a radiator replaced. At 64k miles it was brought into the dealer for warranty work due to a failing thermostat. While being diagnosed, we were told not only the radiator needed to be replaced, but the oil cooler also needed to be replaced. So a 5 year old car with just over 60k Miles had the thermostat/sensor fail and need to be replaced. A radiator fail and need to be replaced and and an oil cooler fail and need to be replaced. Vehicle has been at a GM dealer for all maintenance. No crashes or reasons these parts should fail. Vehicle has never towed anything to but any sort of strain on the cooling system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718747February 18, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
My wife and child drove the car to the grocery store and parked the car l. When she returned to leave , the car would not start and flashed a warning with key fob not detected and some kind of security light warning. The instrument cluster told her to place the key in left console cup holder to crank the vehicle . This did not work either .I drove the second key fob to her to determine if it was a key fob issue and the 2 nd key did not work as well. Called dealership and service requested the car being towed. Tow truck didn’t feel comfortable with the removing the vehicle as it was sitting due to space in the parking lot. They dispatched a small tow truck , but in the meantime I disconnected the battery cable and waited about 15 min. The car cranked and I immediately drove it to dealership. There was no code shown at the dealership and this was the first time they have had dealt with this issue. The mechanic drove the car the next day and the same situation happened again , except this time the key fob worked after several failed attempts . I feel that this is a safety issue because the car failed to operate and had no manual ability to operate without the electronic system functioning properly and this could have happened anyway and stranded my wife and child . A few months before in an unrelated incident , the power trunk malfunctioned and had to be reprogrammed . It would not operate except manually . Car is currently at dealership still being evaluated .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718488February 17, 2026
AIR BAGS
I have a recall on this vehicle that GMC has failed to provide me parts/repair and this recall will be 3 years old in June. I have emailed the local dealer, the manager of the local dealer, GM corporate, and no one has followed through. The best I came to getting the repair was that Corporate made sure I had an appointment and dealer had my part, I went to that appt at my local dealer in Jan 2025 (Premiere GMC of Carlsbad, CA) and waited 2 hours with cars ahead of me (even thought I had an appt) only to be told the part was not there, they would order it and get back to me. Happy to [provide proof of emailing local dealer, GM Corporate etc. with no resolution. I cannot sell my vehicle without this repair done. And I continue to drive daily in an unsafe car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718216February 16, 2026
STEERING
While operating my vehicle, the power steering suddenly failed without adequate warning. The steering became extremely difficult, creating a significant safety hazard for myself, my passengers, and other drivers on the road. A sudden loss of steering assist increases the risk of collision, especially at lower speeds, during turns, or in emergency maneuvers.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718069February 15, 2026
STEERING
Reduced steering assist came up on screen then as we went a few more miles the tire pressure on right front dropping like crazy for no reason on screen in vehicle stopped looked at tire no issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717747February 13, 2026
AIR BAGS
called dealer faulkner gmc multiple times while recall was in force they kept saying they would schedule me when part was available found out that recall was over never got the airbag replaced this is a serious safety defect that needs to be fixed please investigate
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717900February 13, 2026
SERVICE BRAKES, ENGINE, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
Unknown. Brakes still squeaking after getting them changed with the bulletin notice. Engine surges and idles rough- dealership could not diagnose. Not accelerating randomly, pedal goes in and it does not engage. Gas tank not filling up all the way. Rear cross tracking warning turned off when it is not turned off. AC smells rotten and musty
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717530February 12, 2026
ENGINE
Failed component was thermostat and I do not have possession of it. Over several months, I would receive infrequent and unrepeatable messages of "steering assist reduced" and my temp gauge would drop all the way to the cold side. No other recorded codes were being set after frequent trips to Autozone for verification and there were no check engine light warnings. No other signs of vehicle malfunctioning were present either. Recently, a code was finally set P01F0, so I had something tangible to take into shop as the prior condition was not repeatable. Hoping it was only the coolant temperature sensor, then ultimately learned the thermostat had failed - the much more expensive repair option. Seeing this complaint relatively frequently with the 3.6L engine on NHTSA. Plus, the tech says he has changed at least 100 of these - Acadias, Traverses, Enclaves, etc., any GM product with this engine and poor design/position for the thermostat.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717537February 12, 2026
ENGINE
Rear heater line leak detected during evaluation of engine code P01F0 and empty expansion tank was noted. There was never any puddle in my garage prior to the incident, and nothing detected after the fact either. Pictures included demonstrate a leak at the double-crimp near the farthest rear point of the vehicle. The other hose behind the drip photo was also leaking at the crimp under the secondary piece of hose insulation. The design of the system requires replacement of the entire heater line assembly (4 pipes, associated hoses and fittings) traversing the entire length of the vehicle. I was told this is a dealer-only part.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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