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

12/12/2020

REAR CAMERA STOPPED WORKING.

4/6/2021

The contact owns a 2021 GMC Acadia. The contact stated while stopped at a stop light and depressing the brake pedal, the engine revved up with the RPM’s increasing up to 15,000. No warning lights were illuminated. The contact stated that the vehicle jerked and vibrated as the transmission did a hard shift. The vehicle was taken to the dealer who took the vehicle on a 24-minute test drive and no failure was found. The vehicle was taken to the dealer several times and no failure was able to be determined. The failure occurred several times. The manufacturer was notified of the failure however, no assistance was offered. The approximate failure mileage was 249.

11/4/2021

I got into an accident because my back up crap camera did not warn me that a car had turned behind me. Also when and backing up and a car is coming it doesn’t indicate the car is coming until it’s behind me. I’ve taken it to the dealer and they say there’s nothing wrong with it. Also there is no break when you come too close to something in front of you.

5/9/2022

Brand new vehicle purchased from dealer, at 8900 miles transmission slipped. Dealer has for 2 hours and couldn’t find problem, but replaced transmission fluid it was dark. At 9000 it happened again, they have vehicle and said the new transmission fluid is dark and muddy. Only 100 miles, so they determined they need to take apart transmission and see what happened. It’s a 52k car, it should not be repairs, it should be replaced under warranty. Video of 8900 from dealership https://video.37483.net/timeline/2CJTHEW6

2/2/2022

WAS DRIVING AND VEHICLE ENGINE DEAD STOPPED WITH OUT WARNING. COULD NOT GET STARTED AND HAD TO CALL A WRECKER TO TOW TO GMC DEALERSHIP. WERE TOLD IT WASN'T THE FIRST TIME THAT THEY HAD SEEN THIS. THEY HAD A PART IN STOCK TO REPAIR IT. IT WAS DIAGNOSED AS THE “DRIVERS FUEL PUMP MODULE” .WAS SURPRISED THAT THERE WAS NOT A RECALL AS THIS COULD HAVE BEEN A DEADLY INCIDENT DURING RUSH HOUR ON THE ROADS IN MY AREA. WHILE RESEARCHING FOUND A RECALL ON FULL SIZE GMC 2021 SUVS FROM LAST YEAR (NHTSA CAMPAIGN NUMBER 21V739000) ! WHY IS THIS NOT BEING DEALT WITH ON THE 2021 ACADIAS? MY DAUGHTER HAS ONE SHE BOUGHT THE SAME DAY AND NOW I AM IN FEAR IT WILL DO THE SAME THING !!! NO INSURANCE ISSUES OR POLICE ISSUES. AFTER ENGINE DIED SEVERAL SYMBOLS INCLUDING ENGINE ICON CAME ON WHEN TRYING TO RESTART. ALSO RECEIVED AN EMAIL “DIAGNOSTIC ALERT” FROM ON STAR IMMEDIATELY : AN ISSUE WITH THE ENGINE AND TRANSMISSION SYSTEM IN YOUR 2021 GMC ACADIA HAS BEEN DETECTED. PLEASE SERVICE YOUR VEHICLE WITHIN 7 DAYS….

11/15/2022

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

12/12/2020

As I was driving down Interstate 65 in south Alabama on a drizzling rainy day, the sunroof made a very loud popping noise and then exploded, with shattered glass falling into my SUV. Luckily, I was able to keep my vehicle on the road without swerving and losing control. I closed the sunshade on the sunroof to keep the glass from continuing to fall in and drove home. There was no warning lights nor any indication that something was wrong with the sunroof. When I got home, I called the nearest GMC dealership in Pensacola, Florida to report the issue (850.637.8973). Jonathan Sparks handled the claim. He sent out team members to pick up the vehicle from my home. They first removed as much of the glass as they could to keep it from flying off and possibly hitting another vehicle behind them. They drove it to Pensacola, replaced the entire sunroof, and then brought it back to me. Documentation and pictures are attached.

7/31/2021

Brakes grind, usually after sitting overnight. It has happened on multiple occasions.

10/29/2021

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 store for this car in the future? My husband has a video on YouTube of voice activated assist issue so far 2 other people are saying their cars are having the same issue.

11/27/2021

WIFE WAS DRIVING SOUTHBOUND ON US287 BETWEEN VERNON, TX AND WICHITA FALLS, TX IN A 75MPH SPEED ZONE. VEHICLE ABRUPTLY AND FOR NO APPARENT REASON SLOWED AS IF THE BRAKES HAD BEEN APPLIED WITH SUFFICIENT FORCE TO CAUSE HER TO BEND FORWARD AT THE WAIST. SUBSEQUENTLY, THE VEHICLE SPEED BECAME ERRATIC AND SHE SLOWED TO 25 WHILE MOVING ONTO THE SHOULDER. COULD EASILY HAVE CAUSED A FATAL ACCIDENT HAD TRAFFIC NOT BEEN UNUSUALLY LIGHT. I AM ENCLOSING GM SERVICE BULLETIN ISSUED IN JULY OF 2020 (I FOUND IT POSTED ON THE NHTSA WEB SITE) REGARDING THE TRANSMISSION USED IN THIS CAR. A SAFETY RECALL SHOULD BE IMMEDIATELY ISSUED .GM NHTSA SHOULD HAVE REQUIRED GM TO NOTIFY BUYERS OF THIS CONDITION PRIOR TO PURCHASE WHEN THE INHERENT POTENTIAL DEFECT FIRST BECAME APPARENT. WE BOUGHT THE VEHICLE NEW IN QUESTION ON 2 FEB 21 AND IT HAD BEEN DRIVEN JUST 4,063 MILES AT TIME OF INCIDENT.

4/23/2021

The contact owns a 2021 GMC Acadia. The contact stated while stopped at a stop light and depressing the brake pedal, the engine revved up with the RPM’s increasing up to 15,000. No warning lights were illuminated. The contact stated that the vehicle jerked and vibrated as the transmission did a hard shift. The vehicle was taken to the dealer who took the vehicle on a 24-minute test drive and no failure was found. The vehicle was taken to the dealer several times and no failure was able to be determined. The failure occurred several times. The manufacturer was notified of the failure however, no assistance was offered. The approximate failure mileage was 249.

11/4/2021

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

12/12/2020

The car stopped working all of a sudden, I was driving the car with no issues that morning and parked & shut off car to go to my appt. I turned the car back on and worked fine as I was putting in my address on the GPS my car just stopped and shut off by itself. I pushed the start button and it sounded like it wanted to start but it wouldn't and the whole engine shooked. Called GM and car still under warranty had it towed to the nearest GM. They diagnosed it and said it was the fuel injector module that went bad. It's 2021 with only 23800 miles. After a week, just got it back for a day and now the cooling fan has a loud noise, check engine light on, coolant stays on C even after driving it more than 10 mins, ac blows hot air, I get an alert with steering assist is reduced and to drive with care.....seems like something is wrong with the thermostat.

10/19/2023

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.

11/24/2020

The contact owns a 2021 GMC Acadia. The contact stated while driving approximately 30 MPH, the vehicle started making an abnormal dinging sound. The contact stated service restraint system warning message was illuminated. The vehicle was taken to a local dealer where it was diagnosed with needing the SDM module replaced. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 21V702000 (Air Bags) however, the VIN was not included. The manufacturer was not informed of the failure. The failure mileage was approximately 16,000.

1/4/2022

Was on the interstate driving when the emergency brake engaged causing the car skid the tires and almost completely coming to a stop in heavy traffic. Shortly after this the transmission had issues which caused the car to be undrivable and had to be towed. The dealership had the car for over a month and replaced the TCM. There were no other warnings prior to this.

5/28/2021

While driving through intersection auto braking system activated for no apparent reason . Could have caused a crash due to sudden unexpected braking. No warning lights or alarm noted during or after event. Dealership was unable to find any problems with the automatic braking system.

5/31/2022

Since purchase of this vehicle in Dec 2020, the rear camera vision has been intermittent. I originally thought it to be driver problem however I am now told that there is a module that needs to be replaced and it is not available and possibly not being manufactured at the present time. As a result the entire Camera parking assist system is completely out of service with no information on when the module may be available to repair the issue. I believe this may be a Safety issue as backing up into traffic be it parking lots or roadways, this equipment is an essential addition to safety to other vehicles and pedestrians.

8/16/2021

I got into an accident because my back up crap camera did not warn me that a car had turned behind me. Also when and backing up and a car is coming it doesn’t indicate the car is coming until it’s behind me. I’ve taken it to the dealer and they say there’s nothing wrong with it. Also there is no break when you come too close to something in front of you.

5/9/2022

VEHICLE PURCHASED NEW MID-MARCH 2021 AND IN LESS THAN 30 DAYS THE REAR BACK-UP CAMERA STOPPED WORKING INTERMITTENTLY. THIS HAS OCCURRED SEVERAL TIMES AND THE VEHICLE IS CURRENTLY AT THE DEALER BEING DIAGNOSED.

5/7/2021

Since purchase of this vehicle in Dec 2020, the rear camera vision has been intermittent. I originally thought it to be driver problem however I am now told that there is a module that needs to be replaced and it is not available and possibly not being manufactured at the present time. As a result the entire Camera parking assist system is completely out of service with no information on when the module may be available to repair the issue. I believe this may be a Safety issue as backing up into traffic be it parking lots or roadways, this equipment is an essential addition to safety to other vehicles and pedestrians.

8/16/2021

The contact owns a 2021 GMC Acadia. The contact stated that while his wife was reversing the vehicle, the accelerator pedal was stuck to the floorboard and the vehicle crashed into the garage wall. No medical attention was received. No police report was filed. The dealer was made aware of the failure and informed the contact to tow the vehicle to their location to diagnose the failure. The vehicle was awaiting a tow truck and had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 2,500.

8/5/2021

As I was stopped in line behind a car at the ATM, my foot slipped from the brake, I quickly placed it back only to find that I ended up going forward. I quickly moved my foot more to the left for the brake only to end up going forward even faster hitting the car in front of me. I then put my left foot firmly on the brake. Now with both feet on the brake the car is climbing up the car in front of me and not braking. Finally, I put it in park and cut the engine. The whole front end of my car is crushed. Now 5 days earlier my husband had a similar incident when he was parking the car and thankfully only hitting the curb. Looking at the brake pedal you will find that there is a rubber edge hanging down on the right side. IF YOUR FOOT SLIPS BELOW IT while crossing from the accelerator going right to left, YOU WILL NOT hit the brake but will continue to press the accelerator. In fact, if you raise your foot upward, you will only raise the brake. The only way to get to the brake is to get out from under it by going toward the accelerator and then back to the left. This action does not work in an emergency! I believe this rubber edge is too large is a safety hazard. We are still in the process of assessment by insurance, body shop and GMC.

8/28/2022

Brand new vehicle purchased from dealer, at 8900 miles transmission slipped. Dealer has for 2 hours and couldn’t find problem, but replaced transmission fluid it was dark. At 9000 it happened again, they have vehicle and said the new transmission fluid is dark and muddy. Only 100 miles, so they determined they need to take apart transmission and see what happened. It’s a 52k car, it should not be repairs, it should be replaced under warranty. Video of 8900 from dealership https://video.37483.net/timeline/2CJTHEW6

2/2/2022

The Vacuum pump on my 2021 GMC Acadia failed causing my breaks malfunction. This Problem was confirmed by a certified mechanic that repaired it. this is in conjunction with the NHTSA recall issued under N192268490.

6/30/2025

Since purchase of this vehicle in Dec 2020, the rear camera vision has been intermittent. I originally thought it to be driver problem however I am now told that there is a module that needs to be replaced and it is not available and possibly not being manufactured at the present time. As a result the entire Camera parking assist system is completely out of service with no information on when the module may be available to repair the issue. I believe this may be a Safety issue as backing up into traffic be it parking lots or roadways, this equipment is an essential addition to safety to other vehicles and pedestrians.

8/16/2021

I want to voice my concerns with the windshield wipers, and storage placement. In winter weather conditions the storage compartment at the base of the windshield fills up with snow, even when driving. The wiper blades eventually end up resting on this snow. When wipers are turned on there is a quite often a build up of ice on the wiper blades. This causes the wiper blades to raise above windshield and not clean the windshield (partially or completely) Generally you need to stop and break/snow or ice from the wiper as you can not see. Same occurs when e get a freezing rain ice builds up at base of windshield then eventually ices up the wiper blades and not cleaning the windshield. The vehicle is not designed to handle winter and freezing rain conditions, after building vehicles for many years we should have a better wiper system. --Blades should have electric heat wires in them, --maybe need completely electric windshield to handle snow/ice cond. -- The placement of the defroster vents are very poorly placed, they should be all across the base of the windshield. A couple of days ago we had freezing rain, blades were freezing up, heater defroster was at max heat, and fan was at max, I had to constantly pull over and scrape ice off. This is very dangerous situation be it ice or snow. Design engineers really don't seem to take the winter conditions into consideration in the design of vehicles. I have driven over 5 million kms during my career and used to dealing with many types of conditions. No accidents . Just want to bring these issue to your attention. I am extremely disappointed in this unit because of this. Thanks [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

1/25/2022

The contact owns a 2021 GMC Acadia. The contact stated while driving approximately 65-70 MPH, the driver’s side rear spring detached and almost caused a collision. The dealer was made aware of the failure and it was arranged for the vehicle to be towed to the dealer for diagnosis. The contact stated that the vehicle was towed to the dealer prior to the failure after the contact heard an abnormal noise coming from the rear of the vehicle. However, the dealer could not replicate the failure and the vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 12,000.

8/30/2021

I have 43,000 miles on my car and I do not by any means drive hard or really ever go over 50 MPH and I am being told that my rear tow links are loose and need to be replaced. I have NEVER had to replace those in any vehicle I have ever owned especially a 2021 vehicle with under 50k miles on it. I have read that there is a recall on the 2022 Acadia's for this exact issue so I can only assume it is the same issue happening on the 2021's as well.

6/27/2024

My grandson used the safety restraint in the middle second row seat. He pulled the belt out to put it on and it would not retract. I have taken it to the dealership to have it fixed but there is a fee of $515 to fix it. I do not feel I should have to pay the since it seems to be an ongoing problem with the Acadia model. I purchased a 2018 model before this one and the same thing happened with the middle safety restraint in the second row seat. I have contacted GM and they informed me there is nothing they can do to waive the fee of fixing this defect.

10/6/2023

Service safety restraint system notice comes on constantly and disappears at random times.

2/12/2024

The contact owns a 2021 GMC Acadia. The contact stated while driving 75 MPH, the check engine warning light illuminated. Additionally, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. The vehicle was driven to the shoulder of the road. The contact stated while attempting to start the vehicle, the vehicle failed to start as intended. The contact stated that the failure had nearly caused the vehicle to be run over by a tractor trailer. The contact's wife and three minor children were also occupying the vehicle during the failure. The contact stated that he and his family could have been killed due to the failure. The vehicle was towed to the dealer, where it was diagnosed with fuel pump power control module failure. The contact was informed that the fuel pump power control module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact related the failure to an unknown recall; however, the VIN was not included in the recall. The failure mileage was approximately 35,500.

11/7/2025

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.

11/19/2025

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 issue. The dealership has had the vehicle for multiple weeks with help and assistance of GM with also no resolution. This is a very intermittent issue and when it happens it is an extremely dangerous situation. The vehicle gives no warning except for a total shut down.

11/19/2021

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 dealer who diagnosed that the transmission torque converter needed to be replaced. The manufacturer was notified of the failure. The vehicle was repaired. The approximate failure mileage was 4,100.

12/15/2021

My emergency parking brake keeps engaging on its own, as I come to a stop, jeeking me forward. I never even put it in park, but it just engages the parking brake in a forceful manner. At a couple different times, while going at about 40 mph, the car starting shaking terribly, slowing the vehicle. The check engine light came on as well as both parking brake lights on the dash (the indicator light saying the parking brake was on and the indicator light saying there was a problem with the brakes). It felt light the vehicle had engaged the parking brake with I was driving and was dragging the parking brake. I have been having problems with the brakes with the vehicle and have taken it to the dealership a few times for this issue. They only kept it overnight and told me there was nothing they could do because it didn't happen while they had it. I have a fractured back and am disabled, and this issues actually hurts me when it does it.

6/14/2022

The contact owns a 2021 GMC Acadia. The contact stated that while driving, he heard a loud rattling noise coming from the exhaust. The contact then stated that the RPM’s increased and the rattling noise became louder. No warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the exhaust resonator failed the whole exhaust assembly needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 28,000.

10/3/2022

I opened my power lift gate to load groceries in the trunk. It opened without issue. As I loaded the groceries the lift gate came crashing down on my head. This happened in the festival foods parking lot around 5:05 pm today (7/16/23). Once I moved out from under it I saw the left arm was popped off. I popped it back in , there is a metal piece that was messed up. It came/ happened out of nowhere. I’ve never had an issue with it.

7/16/2023

Driving at 70mph on Interstate 69 near Charlotte Michigan at around 10 pm on Wednesday 8/23/2023. Passenger side front tire suddenly deflated. Limped the SUV into a store parking lot at interchange. Continental 235/65R18 106H tire was changed by road side service and spare installed. This morning , while examining tire and rim , found two long radial cracks approximately 50 to 75 mm in length on the outboard surface of the tire. The cracks are about 90 degrees apart. The vehicle has just under 34000 miles on the OEM installed tires. The reason I am contacting NHTSA is that the cracks do not look like road hazard/debris, rather a split in the sidewall. I have not taken the tire back to the dealer or a tire store. I did photo document the failure and cracks.

8/24/2023

The contact leased a 2021 GMC Acadia. The contact stated water had leaked into the trunk compartment on a rainy day. Additionally, the contact stated that he pressed the power release button to close the trunk; however, while the trunk lid was in the process of closing, the driver's side trunk lid spring fractured. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 15,000.

9/14/2023

The contact owns a 2021 GMC Acadia. The contact stated that the software update was performed under NHTSA Campaign Number: 22V709000 (Back Over Prevention). After the software was updated, the Lane Departure Assist system failed and was no longer alerting the driver when the vehicle was drifting into the other lane. The vehicle was taken back to the dealer who completed the software update however, the cause of the failure was undetermined. The vehicle had not been repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 17,700.

9/27/2023

The contact owns a 2021 GMC Acadia. The contact stated that while reversing, the back-over prevention camera failed to display an image. The vehicle was taken to the local dealer who diagnosed that the back-over prevention camera was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 22V709000 (Back Over Prevention). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 25,000.

1/23/2024

The contact owns a 2021 GMC Acadia. The contact stated while attempting to park the vehicle, the contact became aware that the front and rear-view cameras were inoperable. The camera failure message was displayed. The contact stated that the cameras failed to function properly, and an image was not displayed. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 40,000.

2/27/2025

Vehicle gives, “Driver assist reduced Drive with care” warning randomly. Lane change will no longer work and engine light will come on. Problem is sporadic and does not stay active. Engine light will shut off after a day. Once vehicle is shut off cooling fan runs extremely loud and for a long period of time draining battery.

3/27/2025

The contact owns a 2021 GMC Acadia. The contact stated that the door locks failed to lock and unlock while using the key fob or the buttons on the outside or inside the vehicle. The locks failed to operate as needed until after the vehicle was driven. The contact had to manually lock the door; however, after locking the door, the contact was unable to unlockthe vehicle. The contact had to climb through the trunk of the vehicle to enter the vehicle. The contact stated that the failure only occurred while it was raining. The vehicle was taken to the dealer, who was unable to duplicate the failure because it was not raining at the time. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed that the vehicle was not included in GMC Special Coverage: N22378380. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 37,000.

4/8/2025

The contact owns a 2021 GMC Acadia. The contact stated that the navigation screen was inoperable. There were no warning lights illuminated. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The dealer suggested replacing the unit. The vehicle was not repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline to report the failure. The approximate failure mileage was 107,000.

6/13/2025

Instrument cluster malfunction. Entire instrument cluster blacking out every 60 seconds, then rebooting nonstop while driving. While this was occurring, none of the advanced driver assistance systems functioned, nor did the speedometer or other gauges. This occurred while on a trip, and meant having to travel a long distance without having emergency braking, collision warnings or the ability to monitor speed. The car was taken to local dealer and they replaced the entire instrument cluster.

8/7/2025