Problems · by component
2005 Chevrolet Trailblazer Ext fuel system, other problems
111 owner complaints to NHTSA about the 2005 Chevrolet Trailblazer Ext cite fuel system, other, 7% of all 1,703 complaints for this model year.
Complaints
111
7% 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
“I FILLED MY GAS TANK FULL AND IT THEN THE GAS LIGHT COMES ON. I AM HAVING TO KEEP TRACK OF MY MILES SO THAT I DON'T RUN OUT OF GAS BECAUSE THE FUEL NEEDLE KEEPS GOING UP AND DOWN, NOT READING ACCURATELY. NOW EVERY SINGLE TIME THAT I PUT GAS IN THIS HAPPENS. VERY FRUSTRATING, ESPECIALLY WHEN I WANT TO TRAVEL OUT OF TOWN AND YOU ARE NOT SURE WHEN YOU'LL SEE THE NEXT GAS STATION. ARE THERE ANY RECALLS ON THIS? *JS *KB”
“GAS GUAGE STOP WORKING. I RECENTLY RECEIVED A LETTER FROM GMC AKNOWLEDGING A SENSOR PROBLEM WITH THEIR 2005 GMC CARS BUT ONLY WILLING TO REIMBURSE 50% OF WHAT APPARENTLY IS THEIR FAULT. THIS IS A PROBLEM THAT NEED TO BE FIX 100% BY GMC. STAND BEHIND YOUR PRODUCTS! *KB”
“WE RAN OUT OF GAS ON THE HIGHWAY 20 MILES FROM A GAS STATION WITH KIDS IN THE CAR. THE GAS GAUGE IN OUR 05 CHEVY TRAILBLAZER WAS WRONG AND INDICATED WE HAD GAS IN THE TANK. *KB”
“WE ARE EXPERIENCING A DEFECTIVE GAS GAUGE--IT REGISTERS EMPTY OR IT MAY MOVE UP A BIT OR GO DOWN SOME. WE ARE UNABLE TO DETERMINE HOW MUCH FUEL WE ACTUALLY HAVE. I GO ON A TRIP OF 350 MILES ONE WAY EVERY MONTH TO VISIT MY MOTHER AND IT IS A CONSTANT WORRY. I AM SO AFRAID I WILL RUN OUT OF GAS ON THE TURNPIKE--WE JUST NEVER KNOW. WE DID GET A LETTER FROM GM SAYING THEY WERE AWARE OF THE PROBLEM-INTERESTINGLY ENOUGH, THOUGH THEY WILL NOT PAY TO HAVE THIS DANGEROUS SITUATION AFFECTING HUNDREDS OF THOUSANDS OF VEHICLES FIXED--ONLY HALF, WHICH WE FEEL IS UNFAIR. THIS IS A PROBLEM AFFECTING A GREAT NUMBER OF PEOPLE, SIMPLY BY THE FACT THEY SENT THE LETTER--THEY NEED TO MAKE IT RIGHT BY PAYING FOR THE WHOLE REMEDY BEFORE SOMEONE IS KILLED AS A RESULT OF THIS FAULTY GAS GAUGE. WE WOULD LIKE TO BE A PART OF A CLASS ACTION SUIT AGAINST GM FOR THE FULL PAYMENT. *KB”
“MY FUEL GAUGE DOES NOT WORK AND HAS NOT FOR ABOUT TWO YEARS. I READ THAT THERE HAS BEEN MANY COMPLAINTS TO YOUR ORGANIZATION REGARDING THIS PROBLEM. HAVE NOT FIXED BECAUSE THE COST WAS OVER $400. *KB”
“I HAVE A 2005 CHEVROLET TRAILBLAZER WITH A FAULTY FUEL GAUGE. A YEAR OR TWO AGO THE FUEL GAUGE STARTED WORKING INTERMITTENTLY. SOMETIMES IT WOULD SHOW AN ACCURATE READING AND OTHER TIMES IT WOULD NOT. NOW THE FUEL GAUGE JUST SHOWS EMPTY 100% OF THE TIME, NO MATTER HOW MUCH FUEL IS IN THE TANK. DUE TO THIS ISSUE, I HAVE RAN OUT OF FUEL AND STALLED SEVERAL TIMES. AS YOU CAN IMAGINE, THIS IS A MAJOR SAFETY CONCERN. WHEN THE VEHICLE STALLS POWER STEERING AND BRAKING ARE LOST AND IT CAN BE DIFFICULT TO MANEUVER A LARGE VEHICLE LIKE THIS WITHOUT THOSE SYSTEMS. I TOOK THE VEHICLE TO THE DEALER AND THEY ARE STATING THAT THE PROBLEM IS A BAD FUEL SENDING UNIT AND THE COST TO REPAIR IS OVER $600. RESEARCHING THE ISSUE ONLINE I HAVE FOUND THAT THIS SEEMS TO BE A WIDESPREAD ISSUE. THIS IS UNACCEPTABLE AND A RECALL NEEDS TO BE ORDERED. *KB”
Showing 6 of 111 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.