GMC Complaints

Back up lights and Tail light problems My Back up lights turn on when the headlights are turned on and do not shut off unless the headlights are off. Also, recently, the rear tail lights were burning out early and would last only two weeks. The source of the problem seems to be in the fuse box. There is no short in the system. It appears to be in the fuse box of the 2014 GMC Sierra 1500. Bulbs were replaced and burned out quickly. Replacement parts are expensive and this problem exists on other Chevrolet and GMC trucks.

The airbag warning light came on, and the console message "SERVICE AIRBAG SOON" was displayed. The drivers seat side airbag was disabled. The vehicle is a 2015 GMC Acadia with 66,590 miles when this happened. A TSB for this exact issue was The charge for the repair is dated 04/07/2015, but I was never notified about an existing issue that could disable an airbag. I was charge $632.82 for a labor-only repair (no parts are necessary) to resolder the wires in a connector. This should have been inspected/repaired years ago under warranty, after GM knew this condition could eventually disable an airbag.

Truck has always shifted rough, now with only has 102,000 miles has been serviced regularly exclusively at the dealership. It started slipping gears and I was just informed by the dealer that the torque converter detonated and the entire transmission must be replaced.

There's a shuddering, clanking sound coming from the torque converter when the engine shifts gears at 25-35 mph. I also noticed that it happens when it transitions from 4 cylinders to 6 cylinders. There's a sweet spot somewhere in there. It has also happened on the highway from 65-75 mph. This also happens when it's switching from 4 cylinders to 6 cylinders.

While unlocked, passenger doors go through unlocking phase, door locks click, parking lights flash and tail gate comes open. Along with this, an electric motor sound comes from underneath the vehicle (pre start fuel pressurization sequence?) that goes on and on, doors locked, or unlocked, that, left unchecked, drains the battery. Must be hooked to battery recharger round the clock.

Multi-Function Tailgate keeps opening due to malfunction in tailgate switches. Going down the highway and suddenly the tailgate opens and materials in bed of truck are at risk of flying out the back. It is my understanding that they have recalled GMC Sierra 2500 models and above. Why not the 1500 GMC Denali model which is the same exact tailgate?

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 amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2023 GMC Sierra 1500. The contact stated that while operating the vehicle, the rearview camera, front view camera, and side view cameras became inoperable. The vehicle was taken to the local dealer to be diagnosed. The contact was informed that the camera module needed to be replaced; however, the part to fix the vehicle was not available. The manufacturer was notified of the failure. The failure mileage was 8,500.

While driving my check engine light came on indicating that service was needed on the Electronic Stability Control (ESC), traction control, Anti-Lock Brake System (ABS), brake assist the vehicle top speed reduced to 43mph. My braking system was compromised and I have to travel at reduced speeds on busy roadways to arrive at my destinations. I have taken the vehicle to a certified GMC technician for diagnostics and repair.

Back window frame crack led to water intrusion which flooded electric module controlling speedometer and adaptive settings. Extremely unsafe driving with faulty electrical components unknown to me. Insurance and Dealership told me this is a common GMC occurrence. Cost is near $10,000 to make truck drivable.