2021 GMC Acadia owner complaints

Car steers to left,volume does not work after a connected call while driving,screen blacks out and noise coming out of left driver door panel while car is off,also message that sd card was removed no apps working

For the 3rd time of ownership the cooling fan stays on after vehicle is turned off and the display “steering assist is reduced, drive with caution”.

"STEERING ASSIST REDUCED. DRIVE WITH CARE" message, fan runs nonstop, even after the vehicle is off. Sounds like a plane taking off. This seems to be EXTREMELY common after doing my research. Please consider turning this into a recall!

The thermostat failed which cause the steering system to fail and car to not read temperature

While driving down the interstate at 70mph+, the instrument panel went black and restarted multiple times. The car continued to stay at a sustained speed, but I was unable to control anything or see how fast I was going. It appears as if the car has shut off, but it isn't. It also affects the lights. It has happened multiple times with no known cause. When I brought this up at the dealership, they said that it would be an $80 diagnostic fee and unless they can replicate the problem they can't do anything about it because it doesn't throw any error codes. There was another women in the dealership the same time as me with the exact same issue. No fix offered. Looking online and talking to others this seems like a common issue that GMC is ignoring.

Electronic parking brake is setting itself without you doing it even when parked on a completely flat surface. Voice activated assist is going off while driving down the road without you hitting the steering wheel button. 1st dealer I took the car to refused to even address issue because the car didn’t throw a code even though the parking break issue happened while in their parking lot. 2nd dealer at this point has had the car for a total of 16 days. They tried to tell me the parking break was normal, manager at actual dealership told me it definitely was not normal, and they don’t know what to do about voice activation going off. It has now been at dealerships 3 times for this issue within Oct and Nov 2021. Only 4,500 miles on car. If it is having these electric issues already what is in

The infotainment center/and On Star alert systems ( crash detections / SOS ) No access to anything in the infotainments center along with most of the safety setting not alerting due to and over the air update failure. yes is available for inspection upon request. all On star safety features are not working if a crash were to happen i would not be able to get help if i was injured. Yes and it is ongoing. BY a GMC certified dealer. No.

My 2021 Acadia just stooped working as COMPLETLY SHUT OFF. I had no power to contact OnStar or more importantly to put my 4 ways(Hazard lights) on to signal or warn other motorists that there is a problem ahead. I could not push the vehicle as it is locked in gear because of the termination of power. I have had this exact problem happen 3 times leaving me and my family stranded on a busy road with nothing working. On each occasion I have removed my family from the vehicle in fear of being rear-ended! This would not only cause an accident with harm or fatality to my family, but has put that same risk to other motorists on the road. When I have had the vehicle in the dealership (Champion Buick/GMC of Brighton) in which it needs to be towed, they have not been able to find or confirm this iss

Taken from service report; customer states brake pedal some times sinks to the floor and brake fluid on driveway. Tech performed brake fluid check and found that the brake fluid leak is coming from the left front and right front caliper hose, caliper hose has rub marking, making contact with cv boot. Tech replaced the left and right front brake caliper hoses and performed brake fluid fill and bleed, rechecked the operation of the brakes-brakes are working as design Also on service report: Left front cv axle leaking, left front outer cv axle boot is torn, replaced the c axle assembly. Not on the report is that the service manager Informed me that I should not have driven the vehicle in but had it towed in. Service performed under warranty at Linus Cadillac Buick GMC, Vero beach, Fl

The contact owns a 2021 GMC Acadia. The contact stated while reversing out of her parking space, the contact heard a squeaking sound coming from the brakes. The vehicle was taken to an independent mechanic and the brakes were replaced; however, the failure persisted. The dealer was contacted and stated that there was an upcoming recall and to wait for the recall. The manufacturer was contacted and stated that the vehicle needed to be diagnosed. The vehicle was not repaired. The failure mileage was 26,000.

ABS Modulator failed leaking oil. Loss of braking Repair service found the same problem. Part was scrapped.

Engine exhaust makes vibrating noise similar to a leaf blower under acceleration. TSB issued due to common issue and GM refuses to recall or fix. Broken baffle/weld inside of front muffler/resonator on exhaust system under front passenger compartment. Issue getting worse. $2500 at local dealership to fix, with GM offering “assistance” to fix issue in the amount of $742 leaving the consumer with balance. At what point will the rest of the defective part deteriorate and cause clogging issues and more damage?

Vehicle's engine incurred coolant temperature issues, set DTC code, and cooling fan ran after engine was turned off. Dealer diagnosed as thermostat failure and completed repairs. Dealer checked and found no service assistance for repair even though there was a back order for replacement parts and was secured through dealer in detroit current NHTSA id number 110243390 / mfg communication # n252508350 referring to 3.6 v-6 engine. GMC declined any monetary assistance towards repairs with 76278 miles I also own a 2020 Chevrolet blazer with a 3.6 v-6 engine that experienced same failure paid $400 deductable toward repair

GM need to be looked at for faulty Thermostats being put into vehicles. While driving the message "steering assist is reduced " You get to a safe place and shut you car off and the fan still runs. After speaking with my dealer today, he said he has done 7 in last week. And if you look online, everyone especially Acadia models is having this problem. Customers are getting charged alot of money for the repair. To me this is a defective thermostat on GM and needs to be addressed

The contact owns a 2021 GMC Acadia. The contact stated that while driving approximately 30-60 MPH, the vehicle started shuddering inadvertently. There were no warning lights illuminated. The contact stated that he continued to drive the vehicle. The contact stated that the failure reoccurred while driving and the vehicle stalled. The contact was unable to restart the vehicle after several attempts. The vehicle was towed to the dealer who diagnosed that the transmission fluid needed to be replaced per the service bulletin #PIP5608H; however, the failure persisted. The dealer advised the contact to drive the vehicle for 200 miles and bring it back if the failure reoccurred. The contact stated that the vehicle continued to shudder and stall while driving. The vehicle was taken back to the dea

While driving vehicle stalled multiple times in the middle of the road, with service transmission and engine light coming on, causing unsafe conditions, causing accident and leaving passengers stranded. Battery being drained and needing to be replaced multiple times within 2 years. Vehicle stopping and shutting off on the highway causing dangerous driving conditions!! Radio and lights flickering, with radio freezing and shutting off. Electrical system not working properly and overheating!

Vehicle lost power and died during normal driving. Luckily it occurred on a low traffic road and not the interstate. Prior to this there were no check engine lights or other signs of failure or degradation in performance. Was unable to start the vehicle and had to have it towed to my local dealership for service. Failure was due to the Fuel System Control Module GM part 13543075. This part is currently back ordered nation wide and the dealership cannot give an ETA on part availability or repairs.

Getting a pop up that says “steering assist reduced”. Temp gauge drops completely. AC won’t work and fan kicks on

We bought our car on 11/7/2020 ,2 days after starting the messages appear on the screen (service safety restraint system) car and on my phone, this always happen when in motion, on a city or highway doesn't matter where you're driving. We have no idea what could cause the problem cause only had 2 miles when took it out from the dealer. I feel that is a defective product installed on the vehicle. Also the passenger seat doesn't move to be adjusted. Went to the dealer a week ago but still waiting for call back to made the repair.

The contact owns a 2021 GMC Acadia. The contact stated that while his wife was driving at an undisclosed speed, the vehicle inadvertently lost motive power. The driver was able to coast to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the fuel pump control module. The vehicle was repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 36,970.