Problems · by component
2006 Chevrolet Trailblazer Ext fuel system, other problems
136 owner complaints to NHTSA about the 2006 Chevrolet Trailblazer Ext cite fuel system, other, 10% of all 1,313 complaints for this model year.
Complaints
136
10% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the fuel system, other
Verbatim from NHTSA complaints, newest first
“ON MY 2006 CHEVROLET TRAILBLAZER LT MY GAS GAUGE SHOWS I HAVE AN EMPTY TANK OF GAS AT ALL TIMES EVEN IMMEDIATELY AFTER FILLING UP THE TANK. THIS HAS CAUSED ME TO RUN OUT OF GAS FOUR TIMES ON THE HIGHWAY WITH NO RESTART. IN BOTH OF THIS INSTANCES I HAD TO WALK ON THE HIGHWAY AND OFF AN EXIT TO FILL UP A GAS TANK AND THEN WALK BACK, ONE TIME BEING AT 02:00 AM. THIS IS INCREDIBLY DANGEROUS CONSIDERING I COULD BE HIT BY A CAR ON THE HIGHWAY OR STALL WHERE A BREAKDOWN LANE IS UNAVAILABLE AND CAUSE AN ACCIDENT. THE TANK WILL NEVER READ ANYTHING ELSE THEN EMPTY WITH THE GAS LIGHT ON AS WELL. *JS”
“I WAS DRIVING DOWN THE ROAD ABOUT 20 MPH AND THE DRIVERS WINDOW WENT DOWN BY ITSELF AND WOULDN'T GO BACK UP, SOMETIMES WHEN YOU TRY TO START VEHICLE NOTHING HAPPENS AND THEN A FEW SECONDS LATER IT STARTS ON ITS OWN,WHEN IT RAINS ALL THE SPEAKERS QUIT WORKING EXCEPT THE FRONT TWEETER SPEAKERS, SOMETIMES WHEN I SHUT THE DRIVERS DOOR KIND OF HARD IT WONT START AND U CANT LOCK DOORS WITH KEYLESS ENTRY,FUEL GAUGE QUIT WORKING AFTER I FILLED UP WITH GAS. *JS”
“SINCE THIS IS A COMMON PROBLEM WITH GM, I'M SURE OTHER COMPLAINTS HAVE BEEN FILED. THE FUEL GAUGE IN MY 2006 TRAILBLAZER HAS STOPPED WORKING. I AM CONCERNED WITH THE SAFETY ISSUES RELATED TO THIS PROBLEM. AFTER RESEARCHING OTHER COMPLAINTS, THERE SHOULD BE A RECALL TO FIX THIS PROBLEM. FREE! PLEASE LOOK INTO THIS SERIOUS ISSUE AND HELP OUT ALL OF THE OWNERS THAT PURCHASED ONE OF THESE VEHICLES. THANKS. *JS”
“FUEL GAUGE GOES BACK AND FORTH FROM EMPTY TO OVER HALF A TANK TO A 1/4 TANK. THIS WILL BE THE THIRD TIME WE WILL HAVE TO TAKE IT IN FOR THE FUEL SENSOR. IT IS COSTLY AND I FEEL GM SHOULD PAY THE FULL REPAIR BILL OR REPLACE THE VEHICLE. THE TRAILBLAZER HAS ALSO TURNED OFF WHILE DRIVING FOR NO APPARENT REASON AND NO LIGHTS COME ON. THIS HAS HAPPENED ABOUT THREE TIMES WHICH IS VERY DANGEROUS WHEN YOU ARE OUT ON THE ROAD. ANY HELP WE CAN GET TO REPAIR WOULD HELP BEING THAT THIS HAS PROVED TO BE VERY COSTLY. *JS”
“FUEL GAUGE STARTED TO FLUCTUATE IN OCTOBER 2011. I TRIED ALL KINDS OF FUEL TREATMENTS BY RECOMMENDATION OF MY MECHANIC, BUT NOTHING SEEMED TO WORK. NOW, MARCH 2012, IT DOES NOT WORK AT ALL. I'M AFRAID SOME DAY I WILL RUN OUT OF GAS ON THE HIGHWAY WHICH CONCERNS ME FOR MY SAFETY AND MY PASSENGERS SAFETY. *JS”
“MY FUEL INDICATOR HAS ALL SORTS OF MIS-READINGS. EXAMPLES: READS EMPTY WITH LOW FUEL LIGHT ON WHEN JUST FILLED, BEGINS TO READ SOMEWHERE NEAR 3/4 AT A MILEAGE POINT, (50), THAT IT USUALLY READS FULL. VERY ANNOYING AND DISTRACTING TO DRIVER. DISTRACTS THE DRIVERS ATTENTION TO DRIVING. DANGEROUS!!!!!!!!!!!!!! *KB”
Showing 6 of 136 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.