GMC Complaints

Engine lifters bent a pushrod and scratched my camshaft in my engine causing me to be stranded with minor children. 3rd time since I bought this in 2021 that I have had engine faults in this truck.

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). GM?s 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

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

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

All back light won’t turn on only brake lights but not night time running lights

A side detection module pin was corroded and was disrupting the electrical signals to major vehicle components, such as the dash (DIC). The DIC would lose communication with the rest of the vehicle while driving so no vehicle operation data was visible such as speed, alerts messages, etc. This likely also caused engine failure due to the incorrect operation of the afm which is on the same electrical circuit. No warning messages were given. The bad side detection module was diagnosed and fixed at a dealer and shortly after engine issues were noticed.

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.

On 9-12-25 I was pulling a utility trailer when I went to back it in the driveway my 2013 gmc 1500 5.3 stalled . I restarted it only to have a lifter claddering !!!! I checked the oil it was good ! Oil pressure was good not over heating . It is just the lifter!!!!!! After doing some investigating I found that this is a common problem with GM's 5.3 with the AFM system!!! Companies should be held accountable for fraudulent designs!!! This is Not the first time for GM screwing consumers!!! GM had a similar situation back in the 70s and 80s Cadillac!!!! I bought this truck from a GM Dealer with 67000 miles only drove it in 1 winter it now has 149900 miles!!!! 5 years !!! Change oil and filter every 3000-4000 miles ,use Mobile 5w- 30w !!!! I feel a recall should be made to hold GM Accountable for what they new was a problem but produced and Screwed consumers to make SALES !!!!!!!!!!!!! Ask any quality Repair facility that works on GM'S or Even Auto Parts personal. When it stalled it left me in the middle of the Road with traffic!!! Even if it did start right back up !! Clacking!! The cost is unbearable!!!!!!

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.

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