Page 2 of 2 · complaints 51–68 of 68

2008 GMC Sierra complaints

Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2008 record →

Electrical System
Filed Apr 15, 201371,500 milesKY

ON THE MORNING OF APRIL 11 WE HAD A SEVERE THUNDERSTORM AT APPROX. 3:00AM. LATER IN THE MORNING AT APPROXIMATELY 6:30AM I FOUND MY 2008 SIERRA TRUCK RUNNING IN MY GARAGE WITH THE GARAGE DOORS SHUT. THE HEADLIGHTS WERE FLASHING AND THE GARAGE WAS EXTREMELY HOT DUE TO THE ENGINE RUNNING. THERE WAS A LOT OF WATER CONDENSATION ON THE FLOOR INDICATING THAT THE ENGINE HAD BEEN RUNNING FOR QUITE SOME TIME. THE TEMPERATURE GAUGE WAS AT RUNNING TEMPERATURE. MY KEYS WERE IN THE IGNITION SO I OPENED THE GARAGE TO AIR OUT THE CARBON MONOXIDE AND TOOK MY WIFE'S KEYS AND TRIED TO STOP IT REMOTELY BUT IT WOULD NOT STOP. A FEW MINUTES LATER I WENT OUTSIDE AND CAME IN THRU THE GARAGE DOOR TRYING NOT TO BREATH THE FUMES. BY THEN THE TRUCK WAS NOT RUNNING. I FOUND THE CHECK ENGINE LIGHT ON. WHEN I TOUCHED THE KEY IN THE IGNITION THE CHECK ENGINE LIGHT WENT OUT. THE SEAT PRESETS WERE MESSED UP AND THE CLOCK WAS SEVERAL HOURS OFF. THERE WAS ABSOLUTELY NO WAY THE TRUCK WAS REMOTE STARTED. EVEN IF IT WAS IT SHOULD ONLY RUN FOR 10 MINUTES. THIS WAS A VERY SERIOUS AND DANGEROUS SITUATION! CONTINUING ON WITH A SIMILAR SITUATION A YEAR AGO, THERE WAS A SEVERE THUNDERSTORM COMING THRU. OUR NEIGHBORS HAD COME TO OUR HOUSE DURING THE WARNING SINCE WE HAD A BASEMENT. WE WERE ALL STANDING IN THE GARAGE WITH THE GARAGE DOOR OPEN AND OUR 2010 GMC YUKON STARTED UP LIKE SOMEONE TURNED ON THE IGNITION. THERE WERE NO KEYS IN THE IGNITION. THE ELECTRICAL STORM WAS ON-GOING WHEN THIS HAPPENED. WE SAW OUR NEIGHBOR L

Latches/Locks/Linkages
Filed Mar 28, 2013MO

MY CONCERN IS THREE DOOR POWER LOCKS HAVE GONE BAD AND REPLACED TWO SO FAR. MY CONCERN IS THE REAR DOORS ARE KEYLESS AND YOU CANT UNLOCK THEM FROM FRONT. I SPOKE TO GM AND THEY DON'T SEE A NEED TO RECALL TRUCK. I TALKED TO MY LOCAL MECHANIC AND GM DEALERSHIP AND THEY ARE SEEING A LOT OF FAILED POWER LOCKS ON THIS MODEL TRUCK. CAN I GIVE YOU A WHAT IF SCENARIO SAY THEIRS A FIRE IN FRONT AND I CANT UNLOCK REAR DOORS TO GET MY CHILDREN OUT WOULDN'T THAT BE A LIABILITY ISSUE IF I COULDN'T GET THEM OUT TO SAVE THEIR LIVES. *TR

Power Train
Filed Dec 21, 201268,700 milesOH

TRANSMISSION LINES LEAKING AROUND CRIMPED PART OF LINE. RESEARCHING THIS ISSUE ONLINE,MANY GMC/GM VEHICLES ARE HAVING THIS ISSUE. THERE SHOULD BE AN EFFORT BY GM TO INSTALL BETTER LINES. *TR

Structure
Filed Nov 18, 201252,000 milesFL

TWO LARGE CRACKS ON DASHBOARD. ONE IS ABOVE INSTRUMENT CLUSTER HUMP AND IT'S APPROXIMATELY 5" IN LENGTH. THE OTHER IS JUST ABOVE PASSENGER SIDE AIRBAG AND THAT ONE IS APPROXIMATELY 3" IN LENGTH. *TR

Latches/Locks/Linkages
Filed Nov 1, 201237,000 milesFL

TL* THE CONTACT OWNS A 2008 GMC SIERRA. THE CONTACT STATED THAT WHILE PARKED THE CONTACT NOTICED THE DOOR LOCKS WOULD NOT LOCK. WHEN THE DOORS WERE LOCKED MANUALLY THEY WOULD NOT OPEN. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN STATED THE DOOR LOCK ACTUATOR NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 37,000. UPDATED 12/14/12*LJ UPDATED 12/17/12

Structure › Frame and Members › Underbody Shields
Filed Aug 21, 201232,000 milesFL

I NOTICED SOME CORROSION ON THE FRAME AND UNDERCARRIAGE WHEN I PURCHASED THE VEHICLE, BUT PURCHASED A WARRANTY THINKING I'D BE COVERED IF IT GOT WORSE. THE CORROSION IS NOT COVERED AND THE CORROSION IS GETTING MUCH WORSE VERY QUICKLY. MY FRAME WILL RUST THROUGH AT SOME POINT. *TR

Electronic Stability Control (esc)
Filed Aug 6, 201263,370 milesSC

WHILE DRIVING PULLING A BOAT TRAILER TRUCK LOST ALL POWER DOORS STARTED LOCKING AND UNLOCKING CONTINUALLY,ALL GAUGES AND WARNING LIGHTS COME ON TRUCK LOST POWER AND CUTS OFF LOOSING BREAKING AND STEERING, RADIO RESETS , SPEAKERS NOT WORKING. SERVICE TRACTION CONTROL WARNING COMES UP SERVICE STABILATRAC COMES UP , SERVICE BATTERY/CHARGING SYSTEM. *TR

Latches/Locks/Linkages
Filed Aug 2, 201212,653 milesNJ

PASSENGER DOOR LOCK STOPPED WORKING. ONLY WAY TO UNLOCK DOOR, IS BY REACHING ACROSS SEAT AND LIFT LOCK BUTTON. THIS IS UNSAFE IN CASE OF AN ACCIDENT, WHERE THE DRIVERS DOOR IS UNABLE TO BE USED FOR EXIT, AND THE PASSENGER DOOR MUST BE USED. *TR

Air BagsCrash1 injured
Filed Jul 10, 201269,000 milesVT

TL* THE CONTACT OWNS A 2008 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING 30 MPH, SHE LOST CONTROL OF THE VEHICLE AND CRASHED INTO A TREE. UPON IMPACT, THE AIR BAG DID NOT DEPLOY CONTRIBUTING TO THE INJURY OF THE CONTACT. THE VEHICLE WAS DESTROYED. THE FAILURE AND CURRENT MILEAGES WERE 69,000.

Latches/Locks/Linkages
Filed Apr 18, 201287,000 milesPA

TL* THE CONTACT OWNS A 2008 GMC SIERRA. THE CONTACT NOTICED THAT BOTH FRONT PASSENGER AND REAR DOORS WOULD NOT LOCK. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE CURRENT MILEAGE WAS 90,000 AND THE FAILURE MILEAGE WAS 87,000.

Structure › Frame and Members
Filed Mar 13, 201237,000 milesAK

TL* THE CONTACT OWNS A 2008 GMC SIERRA. WHILE TRAVELING 35 MPH, THE CONTACT NOTICED A GRINDING SOUND COMING FROM THE FRONT OF THE VEHICLE. AFTER EXAMINING THE VEHICLE, THE CONTACT DISCOVERED THAT THE A FRAME WAS FRACTURED IN HALF ON BOTH SIDES OF THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE VIN WAS NOT AVAILABLE. THE CURRENT AND THE FAILURE MILEAGES WERE 37,000. UPDATED 4/2/12 *CN UPDATED 04/16/12

Latches/Locks/Linkages
Filed Dec 12, 2011120,000 milesKS

MY 2008 GMC SIERRA DENALI'S AUTOMATIC LOCKS HAVE FAILED ON THREE OF THE FOUR DOORS. I DIDN'T REALIZE THEY WERE NOT ENGAGING UNTIL I TOOK TWO CHILDREN TO DINNER AND HAD ONE OF THEM OPEN THE DOOR WITHOUT UNLOCKING THE DOOR. I HAD THE CHILD SAFETY LOCKS ENGAGED AND THOUGHT I WOULD BE SAFE, BUT IT TURNS OUT THE LOCKS NEVER ENGAGED (THUS, MAKING THE CHILD LOCKS IRRELEVANT). THIS IS AN ISSUE BEYOND INCONVENIENCE. *TR

Air Bags
Filed Oct 11, 201195,000 milesMI

ON SEPT. 28TH ABOUT 1PM I WAS TRAVELING ON A DIRT ROAD WHEN I APPROACHED SOME POT HOLES. THE DAY WAS SUNNY AND DRY AND I WENT TO APPLY MY BRAKE BUT AS I HIT THE BRAKES TO SLOW DOWN I HIT THE FIRST COUPLE AND MY SIDE IMPACT AIR BAGS DEPLOYED. I TOOK IT INTO THE DEALER AND THEY ADVISED THAT THE COMPUTER ADVISED IT WAS IN A ROLL AND DEPLOYED THE SIDE IMPACT AIR BAGS AND ALSO THEY ADVISED THE COMPUTER SENSED THERE WAS SOMEONE IN THE PASSANGERS SEAT WHEN THERE WASN'T SO MAYBE THE SEAT SENSORS A BIT SENSITIVE. IT WAS EVIDENT I WASN'T IN A ROLL AND THEY REFERRED ME TO GM CUSTOMER SERVICE WHO TOOK MY INFOMRATION AND SENT A 3RD PARTY I BELIEVE RAYTHEON TO DO AN INSPECTION. I CALLED GM YESTERDAY AND THEY ADVISED THEY RECEIVED THE RESULTS AND PER THEIR ENGINEERS AND THE DATA THEY PULLED THEY DETERMINED THAT THE POT HOLES THAT I HAD HIT (WHICH WERE NOT LARGE) WERE LARGE ENOUGH TO TELL THE COMPUTER THAT I HAD LOST STABILITY AND TO DEPLOY THE AIR BAGS. WITH THAT THEY DETERMINED THAT THE SYSTEMS WERE FUNCTIONING PROPERLY AND THAT THEY WERE NOT LIABLE FOR ANY ISSUES OR COSTS. I HAD SPOKEN WITH JOE THE SUPERVISOR AND I HAD ASKED HIM THAT WHEN I GET THIS FIXED AM I TO BE LEARY OF POT HOLES IN THE FUTURE THAT IT MIGHT SET THEM OFF AGAIN AND HE DIRECTLY ANSWERED THAT THAT IS A POSSIBILITY THAT IF THE COMPUTER SENSES THAT THE TRUCK HAS LOST STABILITY THAT THEY WILL DEPLOY AGAIN. AGAIN HE ADVISED EVERYTHING WAS FUNCTIONING PROPERLY. AT THIS POINT I HAVE TO GET MY TRUCK FIXED BUT I'M DON'T FEEL SAF

Latches/Locks/Linkages
Filed May 9, 201150,000 milesTX

ALL OF MY POWER DOOR LOCKS ARE NOT WORKING. THIS IS A VERY DANGEROUS SITUATION WHEN YOU HAVE CHILDREN IN THE BACK SEAT AND THEY TRY TO OPEN THE DOOR WHILE IN TRANSIT. I HAVE HAD THE LOCKS REPAIRED ONCE ALREADY WHILE THE TRUCK WAS UNDER WARRANTY AND NOW THEY ARE FAULTY AGAIN. THIS IS NOT WHAT I PAID FOR WHEN I CHOSE TO TRUST IN GMC. I THINK A LEMON LAW LAWSUIT IS IN ORDER IF THEY DON'T RESOLVE THIS ISSUE FREE OF CHARGE. GMC IS RISKING THE LIVES OF NOT ONLY MY CHILDREN BUT EVERY OTHER FAMILY THAT TRUSTED IN GMC. *TR

Electrical System
Filed Aug 4, 2010WA

2008 GMC SIERRA. CONSUMER WRITES REGARDING HEATED WASHER FLUID SYSTEM *TGW THE CONSUMER STATED HE RECEIVED A RECALL NOTICE IN THE MAIL REGARDING THE HEATED WASHER FLUID SYSTEM. THE CONSUMER STATED THE DISABLING OF THE SYSTEM WAS SIMPLY NOT ACCEPTABLE. THE CONSUMER LIVES IN AN AREA WHERE THERE ARE BELOW FREEZING TEMPERATURES AND HE ALSO TRAVELS OVER MOUNTAINS PASSES WHERE ICING OF THE WINDSHIELD IS A COMMON PROBLEM. *JB

Electrical System
Filed Aug 4, 2010TN

2008 GMC SIERRA. CONSUMER EXPRESSES DISCONTENT REGARDING RECALL *TGW THE CONSUMER STATED THE FIX WAS TOTALLY UNSATISFACTORY. THE PART SHOULD BE REPLACED WITH A PROPERLY FUNCTIONIONG SYSTEM AND NOT DISABLING AND REMOVING IT. RECCALL 08V441000. *JB

Vehicle Speed Control
Filed May 14, 201043,783 milesMD

WENT TO PASS ANOTHER VEHICLE, ACCELERATOR PEDAL STUCK TO FLOOR. WAS DOING 90-100 MPH BEFORE I COULD GET THE KEY TURNED OFF, WHICH CAUSED THE PEDAL TO POP BACK UP. *TR

Air BagsCrash1 injured
Filed Sep 22, 200915,000 milesWA

TL*THE CONTACT OWNS A 2008 GMC SIERRA. WHILE DRIVING APPROXIMATELY 25 MPH ON NORMAL ROAD CONDITIONS THE CONTACT BECAME UNCONSCIOUS AND CRASHED INTO A UTILITY POLE. THE POLICE AND AMBULANCE ARRIVED AND THE DRIVER WAS TRANSPORTED TO THE HOSPITAL. THE CONTACT SUSTAINED MINOR INJURIES AND A POLICE REPORT WAS FILED. THE AIR BAG SYSTEM FAILED TO DEPLOY WITH THE MASSIVE LEVEL OF IMPACT. THE VEHICLE WAS COMPLETELY DESTROYED. THE CONTACT HAS CONCERNS OF THE SAFETY RISK INVOLVED. THE FAILURE AND CURRENT MILEAGES WERE 15,000. UPDATED 11/03/09 UPDATED 11/03/09 *BF UPDATED 11/03/09. *JB

Reading these

NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.

Full record for the 2008 GMC Sierra → · Every Sierra year → · How the figures are calculated →