There are 10 owner-reported body & structure complaints for the 2003 GMC Sierrain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
THE FRONT AND REAR BUMPERS HAVE RUSTED SO BAD THAT THEY HAVE BIG HOLES IN THEM. I WAS TOLD I HAVE TO REPLACE THEM BOTH BEFORE I CAN GET AN INSPECTION STICKER ON THE PICK UP, AT THE COST OF OVER $1000.00 FOR PARTS AND LABOR. I HAVE SEEN MANY MORE PICK UPS WITH THE SAME RUSTED BUMPERS. IS THERE A RECALL FOR BUMPER REPLACEMENT ON THESE PICKUPS?? *TR
WHILE SLOWING DOWN FOR A LIGHT ON A 4 LANE HIGHWAY MY BRAKE LINES BURST IN TWO PLACES FAILED FROM BEING WEAKEN BY RUST....I HAD NO CHANCE TO STOP OR ADVERT THE CAR AND CRASHED INTO AND TOTALED A NEW BUICK.....THE DRIVER WAS TAKEN TO THE HOSPITAL...THE FRONT OF MY TRUCK NEED REPAIR....GM MADE THE LINES OUT OF STEEL EVEN THOUGHT THE EXHAUST SYSTEM AND FUEL LINE WERE MADE OUT OF RUST RESISTANT MATERIAL ( GO FIGURE)....I HAVE MY TRUCK SERVICED AT THE LOCAL GM DEALERS AND THEY NEVER MENTIONED THE POTENTIAL HAZARD....WHEN SEARCHING THE INTERNET I FOUND THAT MANY OTHER OWNERS HAD THE SAME EXPERIENCE.....I HAD ALSO BEEN ON THE LOCAL AND NATIONAL NEWS YET GM BUT THEY NEVER ADVISE ME OF THIS CONDITION, AND I'M THE ORIGINAL OWNER....UNDER DIFFERENT CIRCUMSTANCES IT COULD OF BEEN MUCH WORSE...MY INSURANCE WENT UP 1000.00 AND THE AGENT SAID THE BREAK LINES ON HER GM TRUCK HAD JUST BURST AND CRASHED IN A DITCH...PEOPLE ARE DRIVING THEIR CARS LONGER AND THERES GOING TO BE A BAD ACCIDENT...I SEE ON THE NET YOUR DEPARTMENT HAS BEEN INVESTIGATING IT FOR SEVERAL YEARS, YET NO ACTION....YOU COULD AT THE VERY LEAST ADVISE OWNERS OF THE DANGER....I FILED A CLAIM WITH GM FOR HELP IN THIS MATTER AND WAS DENIED BECAUSE I ALREADY HAD THE BRAKE LINED REPAIRED.... *TR
BRAKE LINE RUSTED THROUGH, 1 MONTH LATER A SECOND BRAKE LINE RUSTED THROUGH. MASSIVE RUST ON FRAME AND BUMPERS AS WELL. *TR
2003 GMC SIERRA 1500 TRUCK. CONSUMER STATES PROBLEMS WITH RUST AND ROT *TGW THE CONSUMER STATED THE DEALER RECTIFIED THE RUST PROBLEMS. *JB
FRONT BUMPER ROTTING OFF,UNSAFE AIRBAGS MAY NOT WORK IN THE EVENT OF COLLISION. *TR
TL* THE CONTACT OWNS A 2003 GMC SIERRA 2500 HD. THE CONTACT STATED THAT THE ENTIRE BOTTOM OF THE TRUCK BED WAS RUSTED, INCLUDING THE FUEL TANK. THE VEHICLE WAS TAKEN TO A DEALER (FREEDOM CHEVROLET, 7052 W 48TH ST, FREMONT, MI 49412, 321-403-0016) WHERE IT WAS DIAGNOSED THAT CHEAP METAL WAS USED ON THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT PROVIDE ANY ADDITIONAL INFORMATION. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000.
NHTSA RECALL 04V129000 SUBJECT: TAILGATE SUPPORT CABLE. THE DEALER REFUSED TO HONOR THE RECALL BECAUSE THE TAILGATE CABLES WERE NOT BROKEN. *JB
I AM AN ATTORNEY IN AKRON, OHIO AND I REPRESENT THE FAMILY OF A MAN THAT DIED AND A MAN WHO SUFFERED SERIOUS BRAIN INJURIES WHILE RIDING ON THE TAILGATE OF A 2003 GMC SIERRA WHEN THE TAILGATE STRAPS BROKE. *NM
WHILE DRIVING 35 TO 40 MPH THE FOUR-WHEELER WHICH WAS ON THE BED OF THE VEHICLE FELL OFF. CONSUMER PULLED OFF THE ROAD TO INSPECT THE DAMAGE, AND NOTICED THAT BOTH TAILGATE CABLES SNAPPED OFF, WHICH CAUSED THE TAILGATE TO FAIL. CONSUMER TOOK VEHICLE AND THE FOUR-WHEELER TO THE DEALERSHIP FOR INSPECTION; HOWEVER, THE DEALERSHIP WILL NOT INSPECT THE VEHICLE.*AK
FRONT BUMPER IS RUSTING, WITHIN THE FIRST 3 MONTHS OF OWNERSHIP / LESS THAN 6,000 MILES. *NLM
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.
Data synced from NHTSA on Apr 25, 2026