GMC Transmission Problems

Transmission issues make up roughly 13% of all GMC owner complaints. The majority of the issues have been reported by Acadia owners.

The complaint we hear about most often is transmission failure in the 2008 Acadia.

Common GMC Transmission Problems

  2. Shift to Park Warning Message

    Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the…

    Continue reading article "Shift to Park Warning Message"

Where Transmission Complaints Happen

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Worst Issues

Worst Models

Recent Transmission News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. Acadia owners are tired of seeing a shift to park message when their gear shift lever is already in PARK.

    A new lawsuit says the problem prevents owners from shutting off or locking their vehicles. In addition to losing the ability to shut off and lock the SUVs, owners claim they must resort to all kinds of theatrics to get the SUVs to recognize they are in PARK. Drivers also say the batteries drain and GM has no clue how to fix the issues.

    We’ve seen complaints about this problem in both the 2017 and 2018 model years.

    keep reading article "Acadia Owners File Lawsuit Over “Shift to Park” Transmission Problems"

  2. On September 13, 2015, Rayven Barfield parked her 2001 GMC Yukon in a driveway. She turned the ignition switch off, but left the keys in the ignition.

    Later she heard someone screaming as the the SUV rolled away with a child in the driver's seat. What happens next is unimaginable.

    "The plaintiff says she was running toward the Yukon and saw the driver's side door open as the SUV rolled down the driveway. Joseph Jr. fell or jumped out of the SUV, causing the front tire of the large SUV to run over the 3-year-old who was pronounced dead at a local hospital about an hour later."

    The parents of the boy have filed a lawsuit saying defects in the gear shifting and ignition/park interlock systems. Let's hope something good comes out of this horrible tragedy.

    keep reading article "Yukon Lawsuit Filed After Death of 3-Year-Old"