There are 49 owner-reported electrical system complaints for the 2008 GMC Sierrain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Odometer Fraud. The contact purchased a 2008 GMC Sierra 1500. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 126,498. It was later discovered that the mileage on the title was approximately 250,205.
TL* THE CONTACT OWNS A 2008 GMC SIERRA 1500. THE CONTACT STATED THAT THERE HAD BEEN A BURNING ODOR EMITTING FROM WITHIN THE CABIN OF THE VEHICLE. THEN SUDDENLY THE HEATING SYSTEM FAILED WITHOUT WARNING. THE CONTACT TOOK THE VEHICLE TO A CERTIFIED MECHANIC WHO STATED THAT THE HEATER WIRES THAT HAD A CONNECTOR THAT HAD BURNED THE WIRES ON BOTH ENDS OF THE CONNECTOR. THE RELAY OR THE BOIL MOTOR HAD TO BE REPLACED. THE CONTACT SPOKE WITH THE DEALER (MOORE BUICK GMC 2445 N MARINE BLVD, JACKSONVILLE, NC 28546, (910) 455-1414) WHO REPAIRED THE VEHICLE BY REPLACING THE TWO WIRES. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 131,000.
SERVICE AIR BAG WARNING LIGHT AND ICON ARE SHOWING ON THE INSTRUMENT CLUSTER. THE WARNING COMES ON EVERY TIME I START THE VEHICLE.
POWER DOOR LOCKS WORK INTERMITTANTLY. THIS POSES A SAFTEY CONCERNE AS THE LOCKS SOMETIMES WILL NOT AUTO LOCK WHEN PUT IN GEAR
TL* THE CONTACT OWNS A 2008 GMC SIERRA 1500. THE CONTACT STATED THAT THE AIR BAG SENSORS IN THE VEHICLE WERE CORRODED. THE AIR BAG INDICATOR ILLUMINATED BEFORE AND AFTER THE FAILURE. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT PROVIDED. THE APPROXIMATE FAILURE MILEAGE WAS 120,000.
TL* THE CONTACT OWNED A 2008 GMC SIERRA 1500. WHILE DRIVING 55 MPH, SMOKE EMERGED FROM THE VENTS ON THE PASSENGER SIDE OF THE VEHICLE. THE VEHICLE WAS PULLED OVER TO A SHOULDER LANE WHERE THE PASSENGER SIDE BEGAN TO CATCH FIRE. THE CONTACT STATED THAT WIRES WERE VISIBLE PRIOR TO THE FIRE. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. NO INJURIES WERE SUSTAINED. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE AND THE INSURANCE COMPANY DEEMED THE VEHICLE DESTROYED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V383000 (AIR BAGS). THE LOCAL DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED AND OPENED A CASE FOR THE CONTACT. THE FAILURE MILEAGE WAS APPROXIMATELY 118,000.
TAKATA RECALL - THIS HAS BEEN IN EFFECT FOR OVER A YEAR AND STILL NO ANSWER HAS BEEN RELEASED. NEED TO KNOW WHAT GMC IS GOING TO DO TO CORRECT PROBLEM. WE JUST PURCHASED THIS VEHICLE ON 5/26/17 AND FOUND OUT ABOUT THE RECALL
LOW OIL PRESSURE LIGHT CAME ON DUE TO EXCESSIVE OIL CONSUMPTION WHILE DRIVING. ENGINE BURNED 5 QUARTS OF OIL IN UNDER 3000 MILES. 105K MILES ON 5.3 LITER V8. DEALER SAID TYPICAL FOR THIS ENGINE TO HAVE CARBON BUILDUP AND NEEDS NEW PISTON RINGS AND PISTONS. ALSO DRIVER SIDE DOOR LOCK ACTUATOR REPLACED AND WINDOW SWITCHES.
A LIGHT FLICKERS ON OCCASION THAT LOOKS LIKE A AIRBAG WARNING. IT DOES NOT STAY ON LONG OR OFTEN.
RADIO PLAYS SOME DAYS AND THAN SOMETIMES IT PLAYS NORMAL, BACKUP SAFTEY BEEPS YOU CANNOT HEAR IT, BUZZARD FOR KEYS LEFT IN THE IGNITION, YOU CANNOT HEAR IT. THE WAS STATIONARY
MY DASHBOARD HAS SEVERAL CRACKS EXPOSING THE ELECTRICAL COMPONENTS WITHIN THE DASH. THESE CRACKS ARE IN VARIOUS PLACES ACROSS THE ENTIRE DASH. I PURCHASED THIS VEHICLE BRAND NEW AND IT IS CURRENTLY IN EXCELLENT CONDITION (WITH THE EXCEPTION OF THE DASH) I AM CONCERNED THAT IF THE AIR BAG WERE TO BE DEPLOYED THE PLASTIC DASHBOARD WOULD EXPLODE AND EXPOSE MY PASSENGERS OR MYSELF TO ADDITIONAL HAZARDS WITHIN THE VEHICLE. I AM ALSO CONCERNED THAT THE ELECTRICAL SYSTEM IN MY DASH BOARD IS NOW EXPOSED TO ADDITIONAL HAZARDS DUE TO THE ADDITIONAL EXPOSURE TO THE SUN. I AM FILING THIS INCIDENT WITH THE HOPES THAT IT WILL HELP A RECALL TO BE ISSUED. I NOTICED THE FIRST SMALL CRACK IN 2011. I HAVE KEPT AN EYE ON IT OVER THE YEARS AND AS OF TODAY, THERE ARE EXPOSED OPENINGS IN THE DASH IN SEVERAL PLACES. UNTIL TODAY, I THOUGHT THAT I MIGHT HAVE JUST BEEN UNLUCKY, HOWEVER AFTER DOING SOME RESEARCH ONLINE, IT IS APPARENT THAT I AM NOT ALONE, AND THIS SHOULD BE RECALLED UNDER A MANUFACTURERS DEFECT. THANK YOU FOR TAKING THE TIME TO FILE THIS REPORT ON MY BEHALF. FEEL FREE TO EMAIL ME WITH ADDITIONAL INFORMATION AS NEEDED. BEST REGARDS. *TR
FRONT AIR BAG IMPACT SENSORS CORRODED AND DID NOT DEPLOY AIR BAG IN ACCIDENT
MY SERVICE MAN WAS PULLING OUT OF PARKING LOT AT STORE WHEN AIR BAGS EXPLODED AND SEAT BELTS LOCKED. HE DID NOT HIT ANYTHING AND WAS ONLY GOING ABOUT 10 MPH WHEN THIS HAPPENED. TOOK TO LOCAL DEALER TO SEE IF THEY COULD FIX IT. THEY SAID YES , BUT WE WOULD HAVE TO PAY FOR IT. WE COULD CONTACT THE MANUFACTURER IF NECESSARY. THE BILL WAS $1413.89. (PARTS $798.00--LABOR 562.59 TAX 48.19). WE HAD TO GET IT FIXED AS IT IS ILLEGAL TO BE ON THE ROAD WITHOUT SEAT BELTS (OR AIR BAGS). WE FEEL THESE ARE DEFECTIVE PARTS AN D WE SHOULD BE REIMBURSED BY THE MANUFACTURER.. THIS IS AN UNSAFE VEHICHLE!!!! THANKS
DOOR LOCKS DON'T WORK.
PURCHASED MY 2008 GMC SIERRA TRUCK IN NOVEMBER 2015 AFTER HAVING FOR ONLY 5 MONTHS DRIVER SIDE DOOR LOCK WILL ONLY LOCK OR UNLOCK SOMETIME, MAKING IT UNSAFE IF YOU NEEDED TO EXIT QUICKLY DUE TO ACCIDENT OR FIRE. SEEN MANY OTHER POST ABOUT SAME PROBLEM. SHOULD BE A RECALL ON THIS.
TL* TAKATA RECALL. THE CONTACT OWNS A 2008 GMC SIERRA 1500. THE CONTACT STATED THAT THE SERVICE AIR BAG INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FRONT AIR BAG SENSOR NEEDED TO BE REPLACED, BUT WAS NOT REPAIRED. THE REPAIR WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V381000 (AIR BAGS). THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 152,518.
POWER SURGE TO ELECTRICAL SYSTEM... VOLTAGE METER WILL DROP BELOW 9 VOLTS THEN THE FOLLOWING OCCURS: HEADLIGHTS FLICKER, RADIO SHUTS OFF, CLIMATE CONTROL SHUTS OFF, DASH LIGHTS FLICKER, AIR BAG LIGHT FLASHES, SERVICE AIR BAG WARNING POPS UP, AND TRUCK STALLS OUT. THIS IS A DANGEROUS SITUATION WHILE DRIVING AND IF THIS IS ELECTRICAL MAY CAUSE FIRE. THIS IS INTERMITTENT AND OCCURS AT ANYTIME FOR NO PARTICULAR REASON REGARDLESS OF WEATHER/TEMPERATURE.
JAN 2015 THE AIR BAG LIGHT CAME ON. MANY COMPLAINTS ON THIS ISSUE. ALSO JUNE OF 2015 THE DOOR LOCKS STARTED ACTING UP. PASSENGER SIDE WILL NOT LOCK/UNLOCK NOW THE DRIVER DOOR IS ACTING UP ALSO... MANY COMPLAINTS SEEN ON BOTH THESE CONCERNS.
I WAS DRIVING ON THE HIGHWAY WHEN ALL THE LIGHTS ON THE INSTRUMENT CLUSTER CAME ON AND WENT CRAZY AND SO DID THE RADIO. THE TRUCKS BRAKES LOCKED UP AND CAME TO A COMPLETE STOP. THE TRUCK TURNED OFF AND WHEN I TRIED TO TURN IT BACK ON IT WAS DEAD. OPEN UP THE HOOD AND DISCONNECTED THE BATTERY AND RECONNECTED AND THE TRUCK TURNED ON THIS HAS NOT BEEN THE ONLY TIME IT HAS HAPPEN. *TR
DRIVER FRONT DOOR DOES NOT LOCK OR UNLOCK. *TR
Showing 1–20 of 49 complaints
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