I’ve included all my repair orders regarding to coolant smell/leak and transmission shutter. I purchased my truck on XXX. We had planned a family vacation to [XXX], and we were driving up when I felt the transmission shutter at around 3:00 to 5:00 p.m. while cruising at approximately 55 to 62 mph. Since then, I’ve noticed it happening more frequently. I took the truck to GMC dealer Jack Hanaia at [XXX] (I believe it was in XXX). I expressed my concerns, and they couldn’t find any issues with the transmission, along with the coolant leak. They claimed they couldn’t find a leak, but the service advisor could smell a strong coolant leak. Later on March 5th the coolant leaked, and I got a different advisor. She could smell the leak but the tech couldn’t replicate the issue. A few months later, around August, I took the truck to a different dealership, the Buick GMC dealership at [XXX]. I informed them that I had a coolant leak smell, a transmission shutter, and other issues listed on the repair order They couldn’t find the transmission problem or the coolant leak, but the advisor could also smell the coolant leak. I’m getting tired of going to the dealership and getting a turnaround to go home with the same issue. I have issue with parking sensor blocked all the time. My AC issue is becoming more problem for me, the temp doesn’t match the reading with a thermometer, it’s way off to the point where I have to turn it to LoW to get max cold. When set at 65, it feels like 75 degree. I have videos. My last 2009 GMC Canyon 3.7 crew cab treated me and my family well for 13 years. I bought it in 2013 and sold it in XXX. I thought to choose GMC Canyon over Toyota Tacoma, but now that I’ve been experiencing this issue nonstop, I’m regretting the decision to pay the truck in full cash. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11763030 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2026 GMC Canyon. The contact stated that while his son was driving approximately 30 MPH, the passenger’s side rear brakes were making an abnormal crunching sound. No warning lights were illuminated. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 100.

Source: NHTSA complaint ODI #11755837 · view all complaints for this vehicle at nhtsa.gov

Intermediate steering column defect causing a pronounced dashboard rattle. The dealer (Putnam GMC, Burlingame, CA) diagnosed the issue under warranty, but the required part is on national backorder with no ship date. The vehicle has been out of service at the dealership since September 2, 2026 awaiting the part. This is a steering-related defect on a brand-new vehicle with approximately 1,500 miles.

Source: NHTSA complaint ODI #11765143 · view all complaints for this vehicle at nhtsa.gov

With 94 Miles my brand new GMC Canyon AT4 I leased had a catastrophic failure while i was driving it, the front axle essentially exploded. The findings were that their was no oil/lubricant installed in it from the factory which made this happen. I now have to wait many months for the dealership to repair my vehicle while i have a "loaner" with a bunch of restrictions on it. And i have to pay my lease the entire time it is being worked on because of a factory fault. If i had been going more than 25 mph this would have resulted in a crash/injury.

Source: NHTSA complaint ODI #11737043 · view all complaints for this vehicle at nhtsa.gov