There are 4 owner-reported fuel system complaints for the 2008 Chevrolet Suburbanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2008 CHEVROLET SUBURBAN. AFTER THE VEHICLE WAS STARTED, THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL CAP NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE EVAC SYSTEM NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED AGAIN. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 113,000.
TPS throttle position system. I’ve had issues since 2013 to present time. The car accelerates and decelerates on its own. I have replaced more than once car is not safe to drive. Need help asap
2008 CHEVY SUBURBAN WILL BE IN THE SHOP NEXT WEEK FOR THE 3RD TIME FOR SAME PROBLEMS DEALING WITH FRONT AIR CONDITIONER CEASING TO BLOW AIR AND PROBLEMS WITH DOOR LATCHES & LOCKS NO LONGER ABLE TO BE ACTIVATED BY REMOTE OR FRONT MASTER DOOR ACTIVATOR. HAVE REPLACED AC BLOWER MOTOR, RESISTOR, AND DRIVER FRONT DOOR LOCK ACTUATOR. IT IS NOW THE DRIVER BACK DOOR LOCK NOT WORKING. ALSO, VEHICLE BEGAN RUNNING ROUGH; TOOK IT TO MECHANIC; SENT ME ON TO DEALER. HAD TO REPLACE ALL FUEL INJECTORS AND CAMSHAFT. *TR
ELECTRONIC ACCELERATOR,CUTS IN AND OUT, AND ACCELERATES WITHOUT WARNING. *TR
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