2011 GMC Sierra: sudden loss of power

Filed Mar 29, 2016 · Engine · 59,980 miles · NY

While driving down the interstate at 70 MPH my service traction control message, service stabilitrak message, check engine light, and reduced engine power message came on. The vehicle started running very rough it would not go above 50 MPH. I drove approximately 3 miles to get off the interstate into the gas station parking lot. I turned it off for about 10 minutes when I turned it back on only the check engine light was on I took it to the shop and they ran tests and said it was the battery. Two weeks later it happened again same thing when I turned it off it worked fine after sitting for 10 minutes I got home and when I got a chance to look at it to days later the check engine light was off. I have read a lot and forums about people having the same issue but no resolution truly being found. This is a 2011 gmc sierra 1500 with the all-terrain package and only has about 60,000 miles on it it gets oil changes regularly. This really makes me think this is something gm should look into.

Filed Jan 5, 2016 · Acceleration, Engine · 100,000 miles · WA

The tbs goes out. Putting the truck into reduced power. I was going 65 MPH and the truck slowed down to 15 MPH on the freeway. Lose all breaks control , ABS goes out to. Almost have been due to gm

Filed Oct 15, 2015 · Engine · 31,500 miles · PA

Tl* the contact owns a 2011 gmc sierra. While at a stop light, the vehicle lost power and the check engine warning light illuminated. The vehicle was taken to an independent mechanic who diagnosed that two spark plugs needed to be replaced and that the vehicle consumed excess engine oil. The vehicle was not repaired. The vehicle was taken to a dealer where it was diagnosed that the pcv valve, valve cover, and two spark plugs needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was not notified of the failure. The failure mileage was 31,500.

Filed Oct 25, 2014 · Engine, Transmission · 61,000 miles · FL

Engine light symbol message appeared on vehicle during the early part of september. (not quite sure of the date). Dealership indicated that the work was covered under warranty and will require a full day to replace parts. After repair the vehicle seem to operate excellently until the middle part of october. Engine light message appeared again on vehicle. At this time the service manager identified the problem as a sensor overheating. Needed to bring vehicle back when diesel mechanic is on duty. Requested advice for travel. Service manager cleared code. Engine light message came on again in minutes. The next day while traveling engine lost of power message came on within 150 miles from where we departed. Before lost of power a message of low in exhaust fluid flashed on and off. Pulled to the side of the road and turned engine off for about 30 minutes. Restarted vehicle and the vehicle drove well to our destination of 248 miles more. Carried vehicle to a gmc dealership. The dealership identified the following codes: p113a-egr temp 3-4 correlation; p2471-egr temp sensor 4 high voltage; p20cc-exhaust fuel injector performance history. Dealer stated repair could not be address due to other scheduled appointments for a week. Dealership mechanic cleared codes. Engine symbol returned in 25 minutes. While returning back home the vehicle again gave the message low in exhaust fluid and within minutes went into lost of power mode. Scheduled appointment with the dealership again to resolve the problem.

Filed Apr 24, 2012 · Driver assistance, Electrical · 32,600 miles · FL

Vehicle stalls losing all power to steering and braking capabilities. There is no advanced warning of power loss, it simply quits rendering the driver incapable of steering, moving out of the way of traffic. Has been in certified gmc shop three times, they keep insisting they cannot find problem and the vehicle be picked up. Potential death trap. Not only unsafe for driver but also anyone behind the vehicle.