2011 GMC SIERRA 3500 Power Train Problems
2 NHTSA complaints on file
Power Train Issues in the 2011 GMC SIERRA 3500
2 power train complaints have been filed with NHTSA for the 2011 GMC SIERRA 3500. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Power Train Complaints
my 2011 fmc sierra 3500 drw denali suffered a failure of the Transmission Control Module (TCM). I could barely move the vehicle and almost got into an accident merging into traffic. Forward and reverse was affected. The transmission reverts to top gear after the failure, and makes driving very difficult. There was no warning for this failure Luckily I was minutes from my dealership. This problem could be bad.
Apparently a common issue. The TCM (Transmission Control Module) failed and the vehicle will not start or shift. Vehicle went into limp mode on highway while towing a trailer. Part availability unknown and on backorder for a year.