2008 GMC C Series Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2008 GMC C Series, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical342.9%
- Airbags228.6%
- Engine114.3%
- Interior & seats114.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
FIRST WE WERE DRIVING OUT OF TOWN AND THE RADIO START GOING ON AND OFF, THE LOCKS BEGAN GOING UP AND DOWN UNTIL THE TRUCK LOST POWER. THE TRUCK LOSES POWER WITH OUT ANY REASON. WE HAVE CHECK THE BATTERY, EVERYTHING WITH OUT BEING ABLE TO DETERMINE WHY. AFTER FEW MINUTES THE TRUCK STARTS UP AND EVERYTHING GOES BACK TO NORMAL. I AM CONCERNED THAT ONE OF THESE DAYS THE TRUCK IS GOING TO SUDDENLY STOP AND MY SON COULD GET INTO AN ACCIDENT. I BOUGHT THIS TRUCK FOR MY SON TO GO TO SCHOOL AND I DON'T FEEL HE IS SAFE ON IT FOR THIS ELECTRICAL OR IGNITION PROBLEM. *TR
WIRING HARNESS UNDER DRIVER SIDE DASH MELTING SHORTING FUSE PANEL, UNABLE TO USE PASSENGER SIDE WINDOW, NOR REMOTE LOCK/ENTRY ON PASSENGER SIDE. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
TAKATA AIR BAG REPLACEMENT
WHY HAS MY 2008 GMC SIERRA NOT BEEN REPAIRED. I HAVE LOST FAITH IN GENERAL MOTORS. MY NEXT NEW VEHICLE WILL NOT BE A GM PRODUCT AS WAS MY LAST PURCHASE IN 2018. I HAVEN'T DRIVEN MY VEHICLE IN OVER 3 MONTHS AND WHEN I DO DRIVE IT, ITS JUST TO PICK UP THE FALLEN LIMBS IN MY 6 ACRE YARD. I HAVE NOT HAD AN INCIDENT. WHAT SHOULD I DO?
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
FIRST WE WERE DRIVING OUT OF TOWN AND THE RADIO START GOING ON AND OFF, THE LOCKS BEGAN GOING UP AND DOWN UNTIL THE TRUCK LOST POWER. THE TRUCK LOSES POWER WITH OUT ANY REASON. WE HAVE CHECK THE BATTERY, EVERYTHING WITH OUT BEING ABLE TO DETERMINE WHY. AFTER FEW MINUTES THE TRUCK STARTS UP AND EVERYTHING GOES BACK TO NORMAL. I AM CONCERNED THAT ONE OF THESE DAYS THE TRUCK IS GOING TO SUDDENLY STOP AND MY SON COULD GET INTO AN ACCIDENT. I BOUGHT THIS TRUCK FOR MY SON TO GO TO SCHOOL AND I DON'T FEEL HE IS SAFE ON IT FOR THIS ELECTRICAL OR IGNITION PROBLEM. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
I BOUGHT TWO NEW GMC VEHICLES, AN ACADIA AND A SIERRA 1500 PICKUP TRUCK. WHILE UNDER WARRANTY THE DOOR LOCKS STARTED STICKING AND HAD TO BE REPAIRED. A FEW MONTHS LATER IT STARTED AGAIN. I TOOK IT BACK TO THE DEALERSHIP AND WAS TOLD IT WAS NOW OUT OF WARRANTY. THE SERVICE MANAGER REFUSED TO REPAIR THEM WITH OUT A $500.00 CHARGE FOR EACH DOOR. I REFUSED BEING VERY DISAPPOINTED THAT I WOULD BUY TWO VEHICLES AND RECEIVE SUCH SERVICE AFTER BAILING OUT THE COMPANY AS A TAX PAYER. ALL COMPANIES THAT WERE BAILED OUT BY OUR GOVERNMENT SHOULD STAND BEHIND THE BUYERS WHO STOOD BEHIND THEM. I WILL SEND THIS TO MY SENATORS AND CONGRESSMAN ALSO TO LET THEM KNOW ABOUT THIS WIDELY KNOWN DEFECT AND THEIR REFUSAL TO ACCEPT RESPONSIBILITY. MANY THOUSAND OF THESE ARE ON THE ROAD WITH DEFECTIVE DOOR LOCKS LEAVING OUR VEHICLES AND POSSESSIONS UNPROTECTED. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .