Problems · by component

2003 Chevrolet Trailblazer Ext fuel system, gasoline problems

197 owner complaints to NHTSA about the 2003 Chevrolet Trailblazer Ext cite fuel system, gasoline, 16% of all 1,255 complaints for this model year.

Complaints
197
16% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
2
Reported by owners
01 —Owner reports

What owners say about the fuel system, gasoline

Verbatim from NHTSA complaints, newest first
“ON 12/15/15 I DROPPED OFF MY 2003 CHEVY TRAILBLAZER BASED ON A BULLETIN THAT I RECEIVED FROM CHEVY - GM SPECIAL COVERAGE PROGRAM #14423. THERE WAS A SMELL OF FUEL WHILE REFUELING. ON 12/16/15 THE DEALERSHIP NOTIFIED ME THAT THE FUEL TANK WAS INDEED DEFECTIVE AND THAT IT NEEDED TO BE REPLACED. THEY SAID THAT THEY WOULD ORDER THE PART AND HOLD THE VEHICLE UNTIL THE PART CAME IN SINCE THE VEHICLE WAS NOT SAFE TO DRIVE. LATER THAT DAY THE DEALERSHIP STATED THE PART WOULD NOT BE AVAILABLE UNTIL THE MIDDLE OF FEB.2016 AND THAT I WOULD HAVE TO LEAVE THE VEHICLE IN THEIR LOT. THAT WAS EXTREMELY UPSETTING NEWS SINCE NOW I WAS NOT GOING TO HAVE MY VEHICLE FOR SEVERAL MONTHS WITHOUT A REPLACEMENT. I HAVE BEEN IN TOUCH WITH THE DEALERSHIP ([XXX] (SERVICE ADVISOR), [XXX] (PARTS MANAGER), [XXX] (SERVICE DIRECTOR), AND [XXX] , (PARTS DEPT. SUPERVISOR) AS WELL AS CHEVY CUSTOMER SERVICE (CASE # [XXX]). TODAY IS MARCH 4, 2016 AND THE PART IS STILL NOT AVAILABLE. I HAVE BEEN WITH OUT MY TRAILBLAZER FOR ALMOST 3 MONTHS. THE DEALERSHIP AND CHEVY CUSTOMER SERVICE STILL HAVE "NO IDEA" WHEN THE PART WILL BE AVAILABLE. THEY NOW TELL ME MAYBE MAY 2016. CAN YOU HELP EXPEDITE THIS CASE…”
Owner complaint to NHTSAFiled Mar 14, 2016Fuel system, gasolineODI 10849631
“NHTSA ACTION NUMBER : PE07014 OCCURRED ON MY VEHICLE AROUND NOVEMBER 2014. THE PROBLEM PRESENTED AS P0442 CEL AND ODOR OF GAS AFTER PARKING IN GARAGE. GM HAS INDICATED BECAUSE THE SPECIAL CONSIDERATION ALLOWANCE HAS EXPIRED, DESPITE THE LOW MILEAGE THEY WILL DO NOTHING. THIS VEHICLE WAS PURCHASED NEW IN AUGUST 2003. I DO NOT UNDERSTAND WHY GM WAS NOT COMPELLED TO ISSUE A SAFETY RECALL DUE TO THE RISK OF GAS LEAKING. I WOULD APPRECIATE ASSISTANCE TO GET GM TO MINIMALLY PROVIDE DEFECTIVE PARTS REPLACEMENT, DUE TO THE KNOW MANUFACTURING DEFECT IN THE GAS TANK. *TR”
Owner complaint to NHTSAFiled Jan 24, 2015Fuel system, gasolineODI 10678685
“SES LIGHT CAME ON. DEALERSHIP HAD NO APPS BROUGHT TO MECHANIC. CODE WAS FOR FUEL EMISSION LEAK. REPLACE GAS CAP. WEEK LATER CODE SES CAME ON AGAIN. BROUGHT BACK TO THE MECHANIC, SAID FUEL TANK IS CRACKED. CALLED CHEVY AND WAS TOLD THERE WAS A RECALL BUT NOT MY VIN..... *TR”
Owner complaint to NHTSAFiled Aug 2, 2014Fuel system, gasolineODI 10618346
“THERE IS A STRONG ODOR OF GASOLINE VAPORS COMING FROM THE REAR OF THE VEHICLE, A CRACK CAN BE SEEN IN THE NECK OF THE FUEL TANK. WHEN FILLING THE VEHICLE, FUEL SPILLS OUT OF THE TANK FROM THE CRACK. THE FUEL GAUGE CLUSTER IN THE DASH DOESN'T WORK. THE BLOWER ON THE A/C UNIT DOESN'T WORK ON THE HIGHEST (5) LEVEL. ALSO, THE FAN CLUTCH WENT OUT CAUSING THE CAR TO OVERHEAT SEVERELY. THE FAN DOES NOT ENGAGE, CAUSING THE WATER PUMP SHAFT TO BECOME DAMAGED. ALSO, THE REAR DRIVER SIDE WINDOW QUIT FUNCTIONING, DESPITE BUYING AN EXPENSIVE NEW REGULATOR AND REPLACING IT. HAVING RESEARCHED THE ISSUES, I FIND THAT I AM AMONG HUNDREDS, POSSIBLY THOUSANDS OF UNSATISFIED PEOPLE WITH THE SAME PROBLEMS. *TR”
Owner complaint to NHTSAFiled Jun 23, 2014Fuel system, gasoline, Power trainODI 10605390
“MY 2003 CHEVY TRAILBLAZER CHECK ENGINE LIGHT COMES ON ACCOMPANIED BY THE LOW ENGINE POWER LIGHT. THE VEHICLE GOES INTO LIMP MODE. THIS IS A SAFETY FEATURE THAT ALLOWS THE COMPUTER TO PROTECT THE ENGINE FROM ANY DAMAGE SHOULD SOMETHING GO WRONG. THE ONLY PROBLEM IS THAT THERE IS NOTHING WRONG. THIS HAPPENS MULTIPLE TIMES A DAY (6-8). CHANGING SENSORS DOESN'T FIX IT. I BELIEVE IT TO BE A PROBLEM WITH THE 2003 CHEVY TRAILBLAZER COMPUTER. I HAVE READ MANY FORUMS WITH HUNDREDS OF PEOPLE THAT HAVE THIS SAME PROBLEM. PLEASE LOOK INTO IT BEFORE IT CAUSES AN ACCIDENT OR MAKES AN EMERGENCY SITUATION A FATAL ONE. *TR”
Owner complaint to NHTSAFiled May 2, 2014Fuel system, gasoline, Power train, EngineODI 10586196
“WHERE THE GAS FILLER NECK CONNECTS TO THE GAD TANK THIS AREA DEVELOPS A CRACK ALLOWING GAS TO LEAK FROM THE VEHICLE AND DURING FILLING UP TO A COUPLE QUARTS OF GAS CAN RUN ONTO CEMENT BY THE PUMP, ALSO STRONG GAS SMELL IN THE GARAGE.. THIS ALSO TRIGGERS THE CHECK MOTOR LIGHT. ACCORDING TO INTERNET POSTINGS OTHER TRAIL BLAZER OWNERS ARE EXPERIENCING THE SAME PROBLEM. *TR”
Owner complaint to NHTSAFiled Apr 18, 2014Fuel system, gasolineODI 10583542

Showing 6 of 197 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.