GMC Complaints

The contact owns a 2016 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Merging onto highway and my car would not get up any speed . Was almost crushed by a tractor trailer. If I hadn’t had a long merge lane I could have been killed . Apparently my transmission failed. This is certainly a safety issue . Your car should not just quit! .called dealer and they said the problem is known but gmc is not doing anything about it! Please help 75,000 $ car should last !

The contact owns a 2015 GMC Yukon Denali. The contact stated that while driving at an undisclosed speed, the transmission was inoperable. The contact stated that when the gear shifter was shifted into reverse, the vehicle would drive forward. The contact also stated that when the gear shifter was in neutral, the vehicle would reverse instead. The vehicle was driven to the residence. The contact stated that the transmission fluid had leaked onto the ground. The vehicle was towed to an independent mechanic where it was diagnosed with a failed transmission. The contact was informed that the transmission needed to be replaced. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 102,000.

The blind spot detection sensors have failed and the rest of the detection systems using the bad sensors are also non functional. An alert is shown in the info center every time the car starts. I have read that the issue is due to poor positioning of the sensors allowing for tire spray to directly hit the non water resistant sensors and their connectors. The replacement parts and labor are ridiculously expensive and the ability for an owner to complete this task is nearly impossible. A simple splash guard behind the tire or even waterproofing the sensor and it’s entirety to avoid water penetrating and causing the very expensive sensor and all detection systems connected to it to fail.

Broken rear main seal broke which causes oil leak. Almost all GM vehicles around my year have the same issue resulting in blow engine. $2000 to repair and GM told me they know of this being an issue but won’t do anything to resolve.

Received a safety recall notice for my 2014 Acadia due to a faulty airbag in June 2023 and GMC still hasn't provided a fix. The noticed states- the front-driver airbag inflator may contain a supplier manufacturing defect that may result in inflator rupture during deployment. An inflator rupture may cause metal fragments to pass through the airbag and into the vehicle interior, which may result in injury or death to vehicle occupants. It has been almost a year since the notice was mailed and posted and this is not a matter that has been corrected in a timely matter.

Rear Window Leaks due to failed sealing at the factory. If not fixed will ruin interior components and possibly rust. Yes No No

Electronic tailgate opened on its own. The tailgate opened while I was either driving down the highway or when it was parked earlier. When I went to park the truck I back the dropped tailgate into a poll because I believed the tailgate was locked closed but it had opened on its own. There is no recall on my vehicle but I believe there has been over 320,000 vehicles like mine that have recalls on them for the same issue. Tailgate opens on its own. I have not had it inspected because they want to charge $179 to run a diagnostic check on it. There were no warnings at all. I've owned the vehicle for around 3 months and there has been one or two time that I questioned if I left the tailgate open or not.

The contact owns a 2007 GMC Yukon XL. The contact stated that upon starting the vehicle, she became aware that the light was not functioning on the instrument panel. The contact was not able to see any warning lights on the instrument panel. The vehicle was taken to the dealer, who was unable to diagnose the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 186,000.

Purchased a brand new from dealer 2019 GMC Sierra 1500 in July 2019. I noticed not long after that time that the back window leaked once in a while when it rained. I live in Phoenix Arizona, so rain is a rare occurance and it is in the back seat area of the truck where I do not sit back there or look back there very often checking for leaks. I mentioned it to the service advisor when I was trying to get a very long running issue with the tire pressure monitors that they would not properly fix. It took nearly 2 years for them to correct that issue, and by the time they fixed that issue, truck was out of warranty and they said they had no record of this problem and they could not fix. I am worried about the water causing mold or rust up under the head liner that would cause me and my family medical issues. Water, metal amd fabric head liners do not mix and there is a water stain on the roof liner that grows every time it rains. This is a medical issue and nobody should have to wonder what is growing above their head inside their vehicle while going to work. I see many online reports of a cracked window frame on these model year trucks, so it seems to be a widespread problem with either their vendor for these windows or the installation process at the factory.