There are 4 stored owner reports matching the powertrain & transmission leading-label group for the 2011 GMC Sierra in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)IN VERY COLD WEATHER, THE SHIFTER STICKS AND WILL NOT MOVE TO SHIFT IN ANY GEAR. *JS
GM PERFORMED A RECALL FOR FRACTURED TRANSMISSION DIPSTICK TUBE ON MY TRUCK. THEY TOOK A TUBE OF FOAM AND PLASTIC STRAPPED IT TO THE TUBE. I NEVER SAW THE REASONING! THE TUBE HAS FRACTURED AND NOW HAS TO BE REPLACED. WHY DID THE NOT FIX THIS PROPER IN THE FIRST PLACE. NOW I NEED TO MAKE TWO MORE APPOINTMENTS TO GET THIS FIXED. MY TRANSMISSION IS OPEN TO THE ELEMENTS, WATER AND DIRT! *TR
TL* THE CONTACT OWNS A 2011 GMC SIERRA. THE CONTACT STATED THAT THE VEHICLE WAS PARKED IN A RESIDENTIAL DRIVEWAY WHEN IT ROLLED AWAY IN REVERSE AND INTO THE STREET. A CRASH DID NOT OCCUR. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION BUT THEY WERE UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND DID NOT PROVIDE ANY ASSISTANCE. THE FAILURE MILEAGE WAS 28,000. UPDATED 02-08/13 *BF UPDATED 02/11/13
AFTER APPLYING BRAKE TO SLOW DOWN TO < 5 MPH (NOT COMING TO A HALT) AND THEN TRYING TO ACCELERATE, VEHICLE BECOMES UNRESPONSIVE FOR 1 TO 2 SECONDS; IT FEELS LIKE THE TRANSMISSION GOES INTO NEUTRAL DURING THE BRAKING PERIOD AND WHEN GAS PEDAL IS APPLIED, THERE IS A 1 - 2 SECOND TIME PERIOD WHERE VEHICLE IS TRYING TO FIGURE OUT SOMETHING AND PREVENTS ANY ACCELERATION. WHY IS THIS DANGEROUS? I FOUND MYSELF IN A LEFT TURN ONLY LANE/GREEN LIGHT WITH OPPOSING TRAFFIC, AND I ATTEMPTED THE LEFT TURN WITH ONCOMING TRAFFIC BECAUSE I THOUGHT THAT I HAD AMPLE TIME BUT THE VEHICLE JUST SAT THERE FOR 1 - 2 SECONDS, AND WITH THAT I FOUND MYSELF IN A DANGEROUS PREDICAMENT BECAUSE THE ONCOMING TRAFFIC WAS GETTING VERY CLOSE. IF THE VEHICLE HAD RESPONDED WHEN I NEEDED IT TO, IT WOULD NOT HAVE BEEN A CLOSE CALL. THIS BEHAVIOR WITH THE VEHICLE CAN BE REPRODUCED AT WILL, EVERY TIME. THERE ARE MANY FORUMS ON THE INTERNET WHERE MANY PEOPLE ARE COMPLAINING ABOUT THIS SAME ISSUE WITH THE DRIVE-TRAIN, GMC KNOWS ABOUT IT, BUT REFUSES TO DO ANYTHING ABOUT IT. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.