Home · 2012 GMC Sierra 2500 Hd · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
3 of 59 complaints match · Suspension · clear filters
WELL I KEEP DRIVING MY TRUCK. AND MY AIRBAG LIGHT IS ON. SO THERE FOR IF I GET HIT THEY NOT GOING TO COME OUT AND PROTECT ME. AND I'M HAVING BAD ISSUES WITH MY BALL JOINTS. ON MY 2012 GMC 2500 HD. I'VE PUT 2 SETS ON THEM. AND I'VE ONLY HAD IT A YEAR. YOU GOTTA DO SOMETHING ABOUT THAT.
NHTSA ODI 11166333
I PURCHASED A 2012 GMC SIERRA DENALI FROM STAHL MOTORS IN MONTEREY, CA IN FEBRUARY OF 2015. THEY ARE NOT WILLING TO PAY FOR THE DAMAGES TO MY TRUCK EVEN THOUGH THEY SOLD ME A COMPLETELY DANGEROUS VEHICLE, WHICH I WILL EXPLAIN. MY TRUCK DIDN'T FEEL RIGHT AS I WAS DRIVING SO I DECIDED TO TAKE IT TO A SHOP TO GET LOOKED AT. THERE IS A LONG LIST OF THINGS THAT IS WRONG WITH THE VEHICLE, BUT I WILL MENTION JUST THE MAIN ONES. THE TRUCK WAS SOLD TO ME WITHOUT THE REAR BRAKES HOOKED UP. THE BRAKE LINES FOR THE REAR CALIPERS WERE CAPPED OFF BY THE REAR DIFFERENTIAL. WHEN THE MECHANIC SHOP DISCOVERED THAT, THEY ALSO DISCOVERED THE MASTER CYLINDER WAS COMPLETELY DRY, WHICH CAUSED DAMAGE TO MY FRONT BRAKES. THERE WAS NO CROSS MEMBER UNDERNEATH THE VEHICLE FROM FRAME TO FRAME. IT WAS TORCHED OUT, THEREFOR LEAVING ZERO SUPPORT FOR THE FRAME OF THE TRUCK AS WELL AS THE FRONT DIFFERENTIAL. WHICH NEEDED TO BE REBUILT CAUSED FROM EXCESSIVE MOVEMENT LEFT TO RIGHT. FRONT DIFFERENTIAL NEEDED TO BE REBUILT CAUSED FROM THE DAMAGE OF NO CROSS MEMBER IN PLACE. BALL JOINTS WERE ALSO AFFECTED (ABOUT TO POP OUT OF CONTROL ARMS) DUE TO WRONG PARTS INSTALLED IN FRONT SUSPENSION OF VEHICLE.
NHTSA ODI 10760875
JUST PURCHASES NEW 2012 GMC SIERRA 3500 , 400 MILES , HAVE HAD ALIGNMENT / STEERING PROBLEMS WITH A DRIFT TO LEFT AND A WONDERING STEERING WHEEL, ALSO BRAKE AND ABS LIGHTS ON, WENT TO DEALER THEY LOOKED AT IT FOR 2 HRS, AND SAID IT NEEDED A PART ORDERED AND THERE WAS A TSB ON IT, THE TECH SAID IT WOULD BE SAFE TO DRIVE BUT I WOULD NOT HAVE ABS BRAKES, ALSO HE WOULD CHECK ALIGNMENT AGAIN AT TIME WHEN PART CAME IN 4 DAYS EST, BRAKE AND ABS LIGHT REMAINED ON, VEHICLE DROVE FINE THE NEXT DAY UNTIL A ACCIDENT, WENT AROUND CURVEAT 55 MPH, APPLIED BRAKES TO SLOW, BRAKES WENT TO FLOOR UN ABLE TO SLOW AT ALL WENT OFF THE ROAD LOST CONTROL AND CRASHED INTO TREES, BOTH AIRBAGS DEPLOYED , WENT TO EMERGENCY ROOM WITH ARM INJURY AND RIB INJURIES, BRAND NEW TRUCK VERY SCARRY I WILL NEVER BUY A GM PODUCT AGAIN. *TR
NHTSA ODI 10451590
Working with the data? Download all 59 complaints as CSV · fetched from NHTSA July 19, 2026