2012 GMC SIERRA 1500 Complaints

I went to get the vehicle inspected today and was told it failed due to the chassis frame in the rear being rusted thru. This could cause the suspension to collapse any time. I see on the internet that multiple others have and are experiencing the same with the Sierra and Silverado. My vehicle has unlimited washes and has been washed 40 times a year and looks new from the outside.

Lifter Failure: I was traveling to a State Park in Northern Michigan when my engine starting running very rough with major power loss. My check engine light activated, and I pulled over as soon as I could. It was dangerous because I was pulling a camper and I had to drive well under the speed limit. The Certified Chevy Dealership discovered a collapsed lifter and Cam damage. They considered this as catastrophic engine failure, and I was completely shocked as the vehicle had roughly 129k miles on it. There was no indication of failure prior to this incident as the vehicle ran perfect. I am very disappointed in GM as I have a co-worker with the same year truck that had the exact same issue shortly after I did. A friend of mine also had this happen with a 2014 vehicle of same make and model. It appears that this is a common issue with GM's newer 5.3 engines which used to be extremely reliable (99-07). GM needs to fix these lifter issues because a newer technology engine should last much longer.

The contact owns a 2012 GMC Sierra 1500. The contact stated that during a vehicle inspection, the contact was informed that the sub frame was severely corroded with holes. The vehicle was taken to an independent mechanic, who determined that the sub frame needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.

I took My 2012 GMC Sierra with 112,410 miles in for annual safety inspection and was told that my frame has a hole in it and is cracked, hence un-inspectable in the state of Vermont. I then took it to a welding shop to get an estimate on repair and the tech told me he sees this all the time on this era GM/Chevy trucks. This is clearly a widespread incident and GM should be held accountable like Toyota was years ago with its bad frames.O

Vehicle has just over 113,000 miles and the frame is already severely compromised due to rust. Nearly all factory coating is gone. I believe the sub par wax like coating that GM used from the factory was never intended to last anywhere near or over 100,000 miles. I have personally inspected numerous 2007-2013 GMT900 trucks in or around ohio and have found similar severe rust issues. All vehicles inspected were between 60,000 and 120,000 miles. The rust issues are the worst in the areas directly in front of the rear axle where the frame drops. Nearly every vehicle inspected has structure compromising rust in this area. GMT900 platform vehicles with rust issues in this area are unsafe to be on the road, yet they remain popular in multiple service industries and are frequently seen pulling trailers. GM has done a great disservice to their customers by using a sub par coating on the most important structural component in a vehicle. These trucks should easily last well over 250,000 miles but due to poor coatings they have a hard time breaking 100,000 miles.

Cracked interior plastic dash, multiple places, potential safety hazard if airbag deploys and shatters it even more, also will be exposed wires once the cracks breaks all the way

The contact owns a 2012 GMC Sierra 1500. The contact stated that after the vehicle was taken to an independent mechanic for unrelated repairs, it was diagnosed that the frame needed to be replaced due to rust. The vehicle remained with the independent mechanic while awaiting the repair. The manufacturer was made aware of the failure and informed the contact that the warranty had expired. The failure mileage was 129,181.

manufacturer has failed or is unable to remedy this safety recall for your vehicle in a timely manner and recall could cause great bodily injury or death to driver and passenger .

Dash is cracked in multiple locations, vehicle taken to the dealer and dealer states that manufacturer is not liable and will not cover costs. Started with one crack near the passenger airbag and several cracks have appeared over the years.

Lags when accelerating. Does not happen every time. Causes safety issues when in heavy traffic. The below date is when it started. It happens very regularly.