There are 6 owner-reported fuel system complaints for the 2008 Chevrolet Trailblazerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
SMELLED GAS ODOR FROM REAR OF VEHICLE. CRAWLED UNDER AND FOUND GAS TANK LEAK AT THE CONNECTION OF FILLER PIPE TO TANK/CHECK VALVE. UNDERSTAND THIS WAS KNOWN DEFECT ON EARLIER YEARS AND TANKS WER COVERED BY A SPECIAL COVERAGE PLAN 14423. ANY EXTENSIONS FOR LATER (2008) MODEL YEARS?
THE FUEL GAUGE IS FLUCTUATING FROM FULL TO EMPTY AND THE EMPTY LIGHT COMES ON. IT HAS OCCURRED A FEW TIMES NOW OVER THE LAST FEW WEEKS. THE ISSUE HAS THE POTENTIAL TO CAUSE A STALL CONDITION, IF THE VEHICLE RUNS OUT OF GAS UNKNOWINGLY DUE TO THIS INACCURATE GAUGE CONDITION. I HAVE BEEN ABLE TO RESEARCH SOME DOCUMENTED EVIDENCE OF THIS KNOWN ISSUE ON NHTSA, BUT HAVE NOT FOUND ANY SOLUTION BEING OFFERED BY GM.
TL* THE CONTACT OWNS A 2008 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE FUEL TANK LEAKED FUEL AND THE FUEL CAP INDICATOR LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO CRAMPED THE TANK CAP, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 76,000. .....UPDATED 02/11/16 *BF *CN
I WAS DRIVING THE TRAILBLAZER WENT TO PUT GAS IN IT AT QT AND FILLED THE CAR FULL OF 87. WENT TO START THE CAR AND THE ENGINE LIGHT CAME ON AND THE GAS GAUGE IS AT EMPTY AND THE LIGHT IS ON. THIS HAPPENS EVERY TIME THE CAR IS TURNED ON THIER IS NOTHING WRONG WITH THE CAR MOTOR IS FINE NOT RUNNING HOT OR ANYTHING OIL IS FINE. *TR
MY BLAZER ALSO SHOWS THAT THERE IS NO FUEL, EVEN THOUGH I JUST FILLED UP! I WOULD LIKE TO KNOW WHAT THE PROBLEM IS? *TR
FOR THREE WEEKS MY FUEL LIGHT DENOTES THAT I AM ON EMPTY. I THOUGHT THAT I HAD FORGOTTEN TO GET SOME GAS. BUT WHEN I STARTED TO PAY ATTENTION TO THE GAS LIGHT, I NOTICED THAT, EVEN WHEN I FILLED UP THE GAS TANK, I WAS STILL GETTING THAT RINGING SOUND THAT DENOTES 'EMPTY'. I TOOK MY CAR TO THE DEALERSHIP AND THEY SAID THAT THEY WOULD CHARGE ME ABOUT $460 TO FIX THE PROBLEM, THAT AN AWFUL LOT OF MONEY FOR A FUEL LIGHT. WHAT'S UP WITH THIS? *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 26, 2026