Throughout this truck's lifespan, it's had multiple problems with the engine and fuel system. Around 70k miles, the engine had to be completely rebuilt because of the issues with oil consumption; well known GM 5.3 liter V8 issue. The oil consumption issue then started back up around 140k miles. Once the vehicle hit 100k miles, it started throwing codes for running to lean and too rich, plus it showed the alcohol (ethanol) content at 40%. I've never used E85/20/15/10, but did use 3.5% blended fuel for the first 100K miles. Since then I've switched to 91 premium which does not contain ethanol. However, me readings continue to be over 40% ethanol. All physical parts of the system, that could lead to this issue have been replaced. Recently, my mechanic happened upon Bulletin PIP4792D, which speaks directly to the issue I among countless others are having. In contacting my local dealership and GM, both declined to help unless I paid to have them correct the software issue that is causing this problem. It seems strange to me that a company would expect a consumer to pay for an update to software, when the company is the one who is the cause for the software being bad.

- Booneville, IA, USA

I experienced a failure of the BOSCH 4.2 fuel rail pump while driving on Interstate 65 North near Louisville KY at night and my truck had a dead pedal and was unable to accelerate any and I was in the right lane going over a bridge and two tractor trailers were in each lane behind me and having been on the bridge I was unable to leave the lane of travel until I had completely transversed the bridge I was traveling over. I did engage my emergency flashers immediately but having the trucks side by side and the truck in my lane traveling at highway speeds I was almost struck from behind as the tractor trailer applied his brakes and was able to avoid the collision luckily. I took my truck to the local dealership and was told what the issue was and I had it fixed immediately. The price of the repair was $10,362.64 give or take a few dollars. I had a warranty but that company refused to pay since it's not considered part of the engine. Dodge has issued a Recall for the exact same part as far as I am understanding but yet Chevrolet/GMC has not. Thank you very much [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Clarksville, TN, USA

Driving at approx 35-40 mph approaching a hairpin turn tried to break and vehicle did not slow down slid through the corner into a rock, put the vehicle is reverse and pressed accelerator the vehicle RPM increased on own tried to break the RPM did not diminish(foot off accelerator) before I had time to shut the truck off I hit a tree behind me. It appears something stuck in accelerator (mechanical) or the computer system( electronics) failed. The vehicle has not yet been tested.

- Kalispell, MT, USA

On acceleration from a stop, the RPM's race while shifting. Vehicle acts as if the transmission is slipping from 1-2. early in the life of the vehicle I thought this was only something that happened the first time shifting after pulling out of the garage however, as the truck gets more miles on it, the problem happens more often and when taking off from stops when hot. Vehicle was brought to dealer to diagnose complaint and was told there was a bulletin to address this problem but since the tech couldn't verify it, they didn't do anything. Dealer said I have a good powertrain warranty so if something breaks later I should be covered. Not only is this unprofessional and poor customer service, they literally did nothing to attempt to diagnose or confirm the problem. There seems to be numerous complaints on this site related to RPM racing complaints.

- Cedar Springs, MI, USA

Vehicle unexpectedly accelerated at a gradual increase form 25 to 40 mph on its own Accord. Vehicle did decelerate once brakes were applied. Manufacture notified through the visit to the dealer, and.

- Roanoke, VA, USA