NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
55 reportsMileage unknown · Jul 13, 2026
Seat Belts
2024 GMC Acadia grounded at dealership for 3+ weeks due to unavailable driver seat belt buckle (Part 26522477), rendering a brand-new vehicle legally un-driveable due to primary restraint part constraints. The buckle will not latch, causing the seat belt to be rendered inoperable. The problem was reproduced by the dealership, an…
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2024 GMC Acadia grounded at dealership for 3+ weeks due to unavailable driver seat belt buckle (Part 26522477), rendering a brand-new vehicle legally un-driveable due to primary restraint part constraints. The buckle will not latch, causing the seat belt to be rendered inoperable. The problem was reproduced by the dealership, and the replacement part is backordered.
NHTSA ODI #11750108
Mileage unknown · Jun 22, 2026
Service Brakes
At low speeds the brakes squeal horrendously. We have taken the vehicle to the dealer multiple times and each time they state that the brakes are fine. A vehicle with this low of miles should not have squealing brakes since new.
NHTSA ODI #11745606
17,500 miles · May 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 autom…
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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.
NHTSA ODI #11740702
25,312 miles · Apr 30, 2026
Service Brakes
The contact owns a 2024 GMC Acadia. The contact stated that while driving at an undisclosed speed and depressing the brake pedal, the brakes made an abnormal squealing sound. Additionally, brake pad dust was frequently visible on the rims. The dealer was contacted and advised that the brake issue was caused by driving through a …
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The contact owns a 2024 GMC Acadia. The contact stated that while driving at an undisclosed speed and depressing the brake pedal, the brakes made an abnormal squealing sound. Additionally, brake pad dust was frequently visible on the rims. The dealer was contacted and advised that the brake issue was caused by driving through a car wash. The vehicle was not repaired. The manufacturer was not notified of the issue. The failure mileage was 25,312.
NHTSA ODI #11734795
Mileage unknown · Apr 6, 2026
Service Brakes
My complaint does not involve an accident. The brakes on the 2024 Acadia Elevation are squealing very loudly, and have been doing so for the past six months or so. I have approximately 18,000 miles on it. I took my vehicle to the dealership twice for this issue, and I was told this time that the brakes are still good (still 8mm…
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My complaint does not involve an accident. The brakes on the 2024 Acadia Elevation are squealing very loudly, and have been doing so for the past six months or so. I have approximately 18,000 miles on it. I took my vehicle to the dealership twice for this issue, and I was told this time that the brakes are still good (still 8mm of pads) - even though it was showing 22% brake pad. They told me about the malfunctioning sensor and they fixed that, but the squealing is still there. I was told that it was the metal composition of the brake pads that is making that noise, and GM does not cover brakes past 7,500 miles (this 7,500 warranty is pointless because who would need brakes replaced in that short time frame, anyway?). That means I would have to pay out of pocket for the brakes! There is clearly something wrong with the structure of the brakes and I see on the Acadia forum that this is a common complaint. If the brakes are good, then why are the brakes squealing? Why am I being told that I just have to deal with the squealing sound? What can be done about this issue. It seems unfair to me that I have to come out of pocket to fix something that should not be "broken".
NHTSA ODI #11729530
Mileage unknown · Mar 26, 2026
Electrical SystemEnginePower Train
I purchased this vehicle in June 2024 as a demo vehicle with approximately 7,000 miles on it. Within one month of ownership, the vehicle began experiencing serious problems that have continued to worsen. The vehicle currently has approximately 34,000 miles, and the issues have been ongoing from the time of purchase through the p…
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I purchased this vehicle in June 2024 as a demo vehicle with approximately 7,000 miles on it. Within one month of ownership, the vehicle began experiencing serious problems that have continued to worsen. The vehicle currently has approximately 34,000 miles, and the issues have been ongoing from the time of purchase through the present. Since purchasing the vehicle, it has been in the dealership multiple times for the same recurring problems, including but not limited to: * Powertrain issues and loss of power * Reduced acceleration while driving * Complete electrical failure while driving * Engine and electrical warning lights repeatedly turning on * Vehicle running excessively hot * Water pump replacement * Replacement of sensors * Thermostat replacement * Ongoing engine and electrical system malfunctions Despite these repairs, the same problems continue to reoccur. Each time I return the vehicle for service, I am informed that it is a “different issue,” even though the symptoms remain unchanged. This strongly indicates a defective powertrain and/or electrical system that has not been properly repaired. The most serious concern occurred while I was driving on public streets, when the vehicle lost acceleration, electrical power shut off, and the vehicle completely shut down, nearly causing me to be hit by other vehicles. This incident created an extreme safety hazard for myself, my passengers, and other motorists. I have made several formal complaints directly with GMC, and more than four case numbers have already been created regarding this vehicle. Despite these complaints and repeated repair attempts, the problems persist. Given the repeated failures, numerous repair attempts, documented safety risks, and the fact that these issues began shortly after purchase, I believe this vehicle qualifies for relief under applicable lemon laws and consumer protection laws. Incident (Critical)Vehicle lost acceleration and electrical power and completely stalled while roads
NHTSA ODI #11727317
Mileage unknown · Mar 19, 2026
EnginePower TrainStructure
We purchased our 2024 Acadia in June 2025. Since we have had the vehicle, it has been in the shop going on 6 times. First the sunroof seal came off, then the antenna cover fell off, the driver side rear panel had to be replaced because it was coming off. Once all this was done then the vehicle started leaking transmission fluid,…
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We purchased our 2024 Acadia in June 2025. Since we have had the vehicle, it has been in the shop going on 6 times. First the sunroof seal came off, then the antenna cover fell off, the driver side rear panel had to be replaced because it was coming off. Once all this was done then the vehicle started leaking transmission fluid, took it to the dealer to get fixed, once we get it back the coolant starts leaking from the radiator hose, took it in to get repaired, now there is knocking noise coming from the engine/hood. Every time we take it in to get repaired a new problem pops up. We purchased the vehicle to have a safe way to get our kids around and it has been nothing but a headache and run around from the dealership. GMC really needs to resolve this issue. Parts seem to be on never-ending backorder with no ETA.
NHTSA ODI #11725673
Mileage unknown · Feb 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 "inspe…
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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?
NHTSA ODI #11720195
Mileage unknown · Feb 19, 2026
EnginePower 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 foll…
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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.
NHTSA ODI #11719104
Mileage unknown · Jan 31, 2026
Service Brakes
Front left brake was locking up. Happened 1st a couple months ago. Happened again recently and was towed to dealership. Burning smell from brake and hot in wheel area. Left front brake caliper was locked, pads overheated, rotor warped. Replaced front left caliper, front left brake hose, front pads, and front left rotor. Road tes…
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Front left brake was locking up. Happened 1st a couple months ago. Happened again recently and was towed to dealership. Burning smell from brake and hot in wheel area. Left front brake caliper was locked, pads overheated, rotor warped. Replaced front left caliper, front left brake hose, front pads, and front left rotor. Road tested, brakes operate properly. Brake life on monitor shows 18%, brake pads are at 8mm Out of calibration, reprogrammed brake system control module and performed brake percent calibration per bulletin #25-NA-282. Warranty code is 28YZ314171448.
NHTSA ODI #11714659
NHTSA investigations
1EA26006 · Electronic Brake Module Component Failure
Opened Aug 21, 2026 · No close date supplied
Status: open (inferred from source dates) · Service Brakes
On April 11, 2024, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE24011 after receiving complaints concerning a loss of brake assist in 2023 MY Cadillac Lyriq vehicles. These complaints allege a hard brake pedal, followed by a “Brake System Failure” message at start up or while driving. GM shared records regarding several internal investigations for loss of brake assist due to alleged spindle fractures in the eBoost system. GM has stated that in the event of a spindle fracture, anti-lock brakes (ABS), stability control, and traction control remain functional until the vehicle comes to a complete stop. At this point, ABS, brake assist, stability control, and traction control functions are lost. The loss of these functions causes the vehicle to set one of three Diagnostic Trouble Codes (DTCs) based on failed performance criteria for the Electronic Brake Control Module (EBCM). These DTCs, in turn, activate several driver alerts: an audible chime, a visual “Service Brake System” message in the display, and multiple illuminated Malfunction Indicator Lights (MILs) for the ABS, Traction Control, and Brakes informing the driver of loss of functionality. The vehicle speed will also be limited to 70 KPH (43 MPH). Since opening PE24011, ODI has continued to receive reports of loss of brake assist. Some of these reports describe symptoms inconsistent with GM’s description of a spindle failure. These reports allege an immediate loss of brake assist functionality as opposed to the loss occurring after the vehicle comes to a complete stop. The sudden loss of brake assist during a braking event could result in extended braking distance, which increases the risk of a crash or injury. ODI believes further analysis is necessary to assess the potential for failures in GM’s eBoost system to resulting in safety-related outcomes. At this time, ODI is aware of the following vehicles that are equipped with this eBoost system: 2023-2026 MY Cadillac Lyriq, Chevrolet Colorado, and GMC Canyon; 2024-2026 MY Buick Enclave, Envision; Chevrolet Blazer EV, Equinox EV, Traverse; Cruise Origin; and GMC Acadia; 2025-2026 MY Cadillac Celestiq and Optiq. ODI is also aware of 2024-2026 MY Acura ZDX and 2024-2026 MY Honda Prologue vehicles that were built with this system. The Acura and Honda vehicles were manufactured by GM in a joint venture with Honda, and will be included in the Engineering Analysis as peer vehicles. ODI is opening this Engineering Analysis to further assess the safety-related consequences of a failed eBoost system. In addition, ODI is expanding the scope of the investigation to encompass all GM vehicles that share this eBoost system. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.