NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
145 reports51,190 miles · Oct 18, 2016
Air BagsElectrical System
TL* THE CONTACT OWNS A 2006 GMC SIERRA 800 (NA). THE CONTACT ENGAGED THE HORN AND IT FAILED TO FUNCTION INTERMITTENTLY. THE RELAY IN THE FUSE BOX WAS REPLACED, WHICH DID NOT CORRECT THE FAILURE. DURING AN OIL CHANGE, THE DEALER STATED THAT THE AIR BAG CONTACT COIL, WHICH WAS TIED TO THE HORN, NEEDED TO BE REPLACED. THE DEALER ST…
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TL* THE CONTACT OWNS A 2006 GMC SIERRA 800 (NA). THE CONTACT ENGAGED THE HORN AND IT FAILED TO FUNCTION INTERMITTENTLY. THE RELAY IN THE FUSE BOX WAS REPLACED, WHICH DID NOT CORRECT THE FAILURE. DURING AN OIL CHANGE, THE DEALER STATED THAT THE AIR BAG CONTACT COIL, WHICH WAS TIED TO THE HORN, NEEDED TO BE REPLACED. THE DEALER STATED THEY COULD NOT GUARANTEE THAT THE REPAIR WOULD CORRECT THE FAILURE. THE DEALER REQUESTED A DIAGNOSTIC TEST OF $78 AND ADVISED THE CONTACT THE ESTIMATE FOR THE REPAIR WOULD RANGE FROM $393.12 TO $1,000. A COMPLAINT WAS FILED WITH THE MANUFACTURER WHO STATED THAT SINCE THE VEHICLE WAS TEN YEARS OLD, THEY WOULD NOT OFFER ANY ASSISTANCE. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 51,190. *TR
NHTSA ODI #10916747
55,000 miles · Sep 19, 2016
Air BagsService BrakesCrashInjury
MY WIFE WHILE DRIVING OUR 2006 GMC SIERRA WAS INVOLVED IN A T-BONE ACCIDENT. SHE WAS DRIVING SOUTH IN HER LANE AND WAS CUT OFF CAUSING HER TO HIT THE CAR THAT TURNED IN FRONT OF HER. SHE COULD NOT STOP IN TIME AND WHEN SHE HIT THE OTHER CAR HER AIRBAG DID NOT DEPLOY. SHE DIED FROM BROKEN RIBS THAT PUNCHER-ED HER HEART AND SHE BL…
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MY WIFE WHILE DRIVING OUR 2006 GMC SIERRA WAS INVOLVED IN A T-BONE ACCIDENT. SHE WAS DRIVING SOUTH IN HER LANE AND WAS CUT OFF CAUSING HER TO HIT THE CAR THAT TURNED IN FRONT OF HER. SHE COULD NOT STOP IN TIME AND WHEN SHE HIT THE OTHER CAR HER AIRBAG DID NOT DEPLOY. SHE DIED FROM BROKEN RIBS THAT PUNCHER-ED HER HEART AND SHE BLED TO DEATH AT WORK TWO HOURS LATER, THE CORONER DETERMINED HER DEATH TO BE FROM BLUNT FORCE CHEST TRAUMA.
NHTSA ODI #10908049
138,000 miles · Sep 7, 2016
Electrical SystemElectronic Stability Control (esc)
REDUCED ENGINE POWER AND ENGINE LIGHT. HAVE HAD JUST ABOUT EVERYTHING REPLACED I HAVE MY REPAIR BILLS. TRUCK WILL RUN FINE AFTER BEING IN SHOP THEN STARTS ALL OVER AGAIN. THROTTLE BODY HAS BEEN REPLACED TWICE. IT WILL DROP ME DOWN TO 20MPH ON THE HIGHWAY AND I AM AFRAID IT IS GOING TO CAUSE A BAD WRECK. IT HAPPENED TO ME TODAY …
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REDUCED ENGINE POWER AND ENGINE LIGHT. HAVE HAD JUST ABOUT EVERYTHING REPLACED I HAVE MY REPAIR BILLS. TRUCK WILL RUN FINE AFTER BEING IN SHOP THEN STARTS ALL OVER AGAIN. THROTTLE BODY HAS BEEN REPLACED TWICE. IT WILL DROP ME DOWN TO 20MPH ON THE HIGHWAY AND I AM AFRAID IT IS GOING TO CAUSE A BAD WRECK. IT HAPPENED TO ME TODAY AND I AM OUT OF TOWN I HAVE DROVE 600 MILES WITH A HORSE TRAILER TO PICK UP A RESCUE HORSE AND AM AFRAID TO START HOME WITH NO CLUE WHAT IS WRONG WITH THIS TRUCK WHEN I RESET THE BATTERY IT WILL WORK FINE BUT I AM TELLING YOU THAT IT IS GOING TO CAUSE A BAD WRECK. I DON'T MIND PAYING FOR IT JUST TELL WHAT THE HELL IS WRONG SO I CAN GET IT FIXED PROBABLY BEFORE SOMEONE GETS HURT OR KILLED.
NHTSA ODI #10904575
83,000 miles · Aug 29, 2016
Service Brakes
TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHILE DRIVING AT A VERY SLOW SPEED, THE BRAKE PEDAL DEPRESSED AND FAILED TO OPERATE. THE CONTACT WAS UNAWARE IF THE EMERGENCY BRAKE WAS DEPRESSED; HOWEVER, THERE WAS NO CRASH. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE LINE WAS RUSTED AND NEEDED TO BE REPL…
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TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHILE DRIVING AT A VERY SLOW SPEED, THE BRAKE PEDAL DEPRESSED AND FAILED TO OPERATE. THE CONTACT WAS UNAWARE IF THE EMERGENCY BRAKE WAS DEPRESSED; HOWEVER, THERE WAS NO CRASH. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE LINE WAS RUSTED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 83,000.
NHTSA ODI #10899173
80,000 miles · Aug 19, 2016
Power TrainService Brakes
1.RUSTED BRAKE LINES BLOWOUT.FORTUNATELY MINE HAPPENED IN A PARKING LOT,NOT ON THE TURNPIKE,AND REQUIRING AN EMERGENCY STOP. 2.CLUTCH MASTER CYLINDER PLASTIC MOUNTING FLANGE SEPARATES WHEN CLUTCH IS DEPRESSED,DISABELING STD.TRANSMISSION.ON RESIDENTIAL STREET.
NHTSA ODI #10897210
322,566 miles · Jun 24, 2016
Suspension
TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHEN THE BRAKE PEDAL WAS DEPRESSED AT VARIOUS SPEEDS, THE VEHICLE VIBRATED WITHOUT WARNING. WHILE THE VEHICLE WAS BEING SERVICED FOR NHTSA CAMPAIGN NUMBER: 06E050000 (SERVICE BRAKES, AIR), THE PASSENGER SIDE HUB FRACTURED AND WAS UNABLE TO BE REPAIRED. THE CONTACT STATED THAT THE FRON…
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TL* THE CONTACT OWNS A 2006 GMC SIERRA 1500. WHEN THE BRAKE PEDAL WAS DEPRESSED AT VARIOUS SPEEDS, THE VEHICLE VIBRATED WITHOUT WARNING. WHILE THE VEHICLE WAS BEING SERVICED FOR NHTSA CAMPAIGN NUMBER: 06E050000 (SERVICE BRAKES, AIR), THE PASSENGER SIDE HUB FRACTURED AND WAS UNABLE TO BE REPAIRED. THE CONTACT STATED THAT THE FRONT DRIVER SIDE HUB ASSEMBLY WAS DEEMED AFTER MARKET AND THE REPAIR WAS DENIED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 322,566.
NHTSA ODI #10876394
Mileage unknown · Jun 2, 2016
Power Train
2006 GMC SIENNA. CONSUMER WRITES IN REGARDS TO TRANSMISSION GEAR SHIFTER STICKS/ GRINDS WHEN CLUTCH IS DEPRESSED. *SMD THE CONSUMER STATED HE HAD TROUBLE SHIFTING THE FIVE SPEED TRANSMISSION FROM THE TIME, HE PURCHASED THE VEHICLE. IT WOULD STICK IN GEAR WHEN SHIFTING, MOVE WITH THE CLUTCH DEPRESSED WHEN HE STARTED IT IN GEA…
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2006 GMC SIENNA. CONSUMER WRITES IN REGARDS TO TRANSMISSION GEAR SHIFTER STICKS/ GRINDS WHEN CLUTCH IS DEPRESSED. *SMD THE CONSUMER STATED HE HAD TROUBLE SHIFTING THE FIVE SPEED TRANSMISSION FROM THE TIME, HE PURCHASED THE VEHICLE. IT WOULD STICK IN GEAR WHEN SHIFTING, MOVE WITH THE CLUTCH DEPRESSED WHEN HE STARTED IT IN GEAR, AND SCRAPE WHEN SHIFTING BETWEEN GEARS. OVERALL, THE CLUTCH WAS NOT DISENGAGING/ THE DEALER CLAIMED THE VEHICLE WAS SELF-ADJUSTING AND THERE WAS NOTHING THAT COULD BE DONE. THE CONSUMER RECEIVED INFORMATION ABOUT AN INCORRECT CLUTCH MASTER CYLINDER BEING INSTALLED IN 2006 SIERRA'S. *JB
NHTSA ODI #10872017
143,000 miles · Mar 31, 2016
Engine
DEFECTIVE CASTECH HEADS. LEAKING ANTIFREEZE INTO ENGINE. THINS OUT THE ENGINE OIL AND COULD ENGINE TO OVER HEAT OR SIEZE UP WHILE DRIVING. GM KNOWS OF THE DEFECTIVE HEADS BUT WILL NOT WARRENTY THEM. PLEASE CAN SOMEONE PLEASE HELP US POOR PEOPLE WHO HAVE GOT STUCK WITH THIS BAD DEFECTIVE DESIGN.
NHTSA ODI #10852687
167,000 miles · Jan 28, 2016
Engine
I HAVE A 2006 GMC SIERRA WITH THE 5.3L VORTEC ENGINE AND I FOUND OUT THAT THE CASTECH HEADS ARE FAULTY AND LEAKING COOLANT INTO THE ENGINE ALSO FOUND OUT THIS IS A COMMON ISSUE AND GM KNOWS ABOUT IT ,TECHNICAL SERVICE BULLETIN IS 06-06-01-019B WHICH STATES GM IS AWARE OF THE DEFECT THIS TRUCK WAS BOUGHT BY MY BOSS BRAND NEW AND …
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I HAVE A 2006 GMC SIERRA WITH THE 5.3L VORTEC ENGINE AND I FOUND OUT THAT THE CASTECH HEADS ARE FAULTY AND LEAKING COOLANT INTO THE ENGINE ALSO FOUND OUT THIS IS A COMMON ISSUE AND GM KNOWS ABOUT IT ,TECHNICAL SERVICE BULLETIN IS 06-06-01-019B WHICH STATES GM IS AWARE OF THE DEFECT THIS TRUCK WAS BOUGHT BY MY BOSS BRAND NEW AND I PURCHASED IT FROM HIM I BELIEVE GM SHOULD TAKE CARE OF THIS FOR MY FAMILY'S SAFETY. JUST NOTICED THIS THIS MONTH AND THIS TRUCK HAS BEEN SERVICED REGULARLY.
NHTSA ODI #10822795
47,800 miles · Dec 11, 2015
Service Brakes
ABS ACTIVATION AT LOW SPEEDS RESULTING IN INCREASE STOPPING DISTANCE. IT RESULTED ALMOST STRIKING A PEDESTRIAN IN A CROSSWALK. THIS HAD PREVIOUSLY BEEN REPAIRED AT MY OWN COST IN 2011 AND THE PROBLEM HAS AGAIN RETURNED. PREVIOUSLY GMC SIERRAS WERE RECALLED WITH THE SAME PROBLEM. RECALL NUMBER: 05V379000 RECALL DATE: 08/29…
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ABS ACTIVATION AT LOW SPEEDS RESULTING IN INCREASE STOPPING DISTANCE. IT RESULTED ALMOST STRIKING A PEDESTRIAN IN A CROSSWALK. THIS HAD PREVIOUSLY BEEN REPAIRED AT MY OWN COST IN 2011 AND THE PROBLEM HAS AGAIN RETURNED. PREVIOUSLY GMC SIERRAS WERE RECALLED WITH THE SAME PROBLEM. RECALL NUMBER: 05V379000 RECALL DATE: 08/29/2005 COMPONENT: SERVICE BRAKES, HYDRAULIC:ANTILOCK PROBLEM SUMMARY: CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES MAY EXPERIENCE UNWANTED ANTILOCK BRAKE SYSTEM (ABS) ACTIVATION. CONSEQUENCE: THIS CAN CAUSE INCREASED STOPPING DISTANCES DURING LOW-SPEED BRAKE APPLICATIONS, WHICH COULD RESULT IN A CRASH.
NHTSA ODI #10809714