Reliability, what owners report, and what it costs to keep.
AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.
Owners have filed 1,266 complaints with NHTSA about the 2003 Chevrolet TrailBlazer, and it carries 8 recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Electrical system | 295 | 23% |
| Fuel system | 175 | 14% |
| Power train | 98 | 8% |
| Exterior lighting | 63 | 5% |
| Visibility | 61 | 5% |
| Air bags | 55 | 4% |
| Fuel/propulsion system | 54 | 4% |
| Engine and engine cooling | 53 | 4% |
| Structure | 37 | 3% |
| Suspension | 23 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
Transmission doesn’t have 3rd or 4th gear. Vehicle was smoking under hood. Found out after buying it it has flood damage. Mechanic said there was water in the transmission when inspected. Vehicle needs catylic converter
NHTSA complaint: Electrical system
While driving my Trailblazer in A4WD on slippery road conditions, I went to pulled out of a parking lot and there was a loud sound like my whole front end fell out and the front end completely locked up. Almost causing a
NHTSA complaint: Power train
WIRE HARNESS COATING FALLING APART ALMOST CAUGHT MY TRUCK ON FIRE GOT PICTURES AND IT TRIGGERS THE BRAKE LIGHT TO STAY ON
NHTSA complaint: Electrical system
IT'S LEAKING GAS FROM LINES ON TOP OF GAS TANK MECHANIC CHECK IT OUT I JUST CAN'T AFFORD IT I'M DISABLED ON FIXED INCOME RAISING MY GRANDSON
NHTSA complaint: Fuel/propulsion system
IN 2018 WE WERE HAVING A FUEL PRESSURE ISSUE AND DISCOVERED THAT THE ICV HAD CRACKED AROUND THE GAS TANK. WHEN I RESEARCHED THE ISSUE I FOUND THERE WAS A SPECIAL COVERAGE WARRANTY FOR THE ISSUE AND CALLED THE NEAREST CH
NHTSA complaint: Fuel/propulsion system
MY DRIVER SEAT CAUGHT FIRE WENT TO OPEN THE DOOR TO FIND A HOLE IN MY DRIVER SEAT AND THE ROOF TOP BURNT AS WELL. I ALSO HAD A NEW FUEL PUMP PUT IN DUE TO IT LEAKING GAS AFTER PUT IT. IT CONTINUES TO LEAK.
NHTSA complaint: Seats
FRAME FAILED DRIVER'S SIDE REAR. CAUSING UNSAFE DRIVE CONDITION. FORWARD TO REVERSE GRINDING CAUSED BY SEPARATION OF FRAME.
NHTSA complaint: Suspension
NOTHING HAS HAPPENING YET TRYING TO GET THE RECALLS FIXED HAVE NO IDEA HOW TO GO ABOUT IT SO STARTED HERE, PLEASE TELL ME IF NOT ALLOWED OR WHERE I CAN GET THE INFORMATION
NHTSA complaint: Electrical system
NHTSA lists 8 recall campaigns for the 2003 Chevrolet TrailBlazer. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
ON CERTAIN SPORT UTILITY VEHICLES, VIBRATION AND HEAT MAY CAUSE THE TAIL LAMP/STOP LAMP BULB TO LOOSEN IN ITS SOCKET. IF THIS OCCURS, THE BULB MAY FLICKER AND EVENTUALLY BECOME INOPERATIVE.
Risk: AN INOPERATIVE BRAKE LAMP WILL NOT CONVEY THE DRIVER'S INTENTION OF STOPPING TO DRIVERS IN FOLLOWING VEHICLES, AND AN INOPERATIVE REAR TURN SIGNAL LAMP WILL NOT CONVEY THE DRIVER'S INTENTION TO TURN T
Fix: DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-8
ON CERTAIN TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FLASH IN A MANNER SIMILAR TO HAZARD WARNING, RATHER THAN FLASHING ON THE DESIRED SIDE ONLY.
Risk: THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTENTIALLY WARN OTHERS OF AN IMPAIRED VEHICLE OPERATING CONDITION INCREASING THE RISK OF A CRASH.
Fix: DEALERS WILL REPLACE THE SUSPECT FLASHER MODULES WITH A NEW FLASHER MODULE DESIGNED WITH SEALED RELAYS AND MORE DURABLE CONTACT MATERIAL INSIDE OF THE RELAYS FREE OF CHARGE. THE RECALL BEGAN ON AUGUS
CERTAIN SPORT UTILITY VEHICLES HAVE WINDSHIELD WIPER SYSTEMS THAT WILL NOT TURN ON, CEASE OPERATION WHILE IN USE, FAIL TO TURN OFF/ON BY THEMSELVES (MOISTURE SENSITIVE WIPER SYSTEM), OR HAVE CONTINUOUS WINDSHIELD WASHER PUMP OPERATION BECAUSE THE PRESENCE OF WATER WITHIN THE WIPER MODULES CAN EITHER
Risk: DEPENDING ON THE OCCURRENCE AND WEATHER SITUATION, DRIVER VISIBILITY COULD BE REDUCED, WHICH COULD RESULT IN A CRASH.
Fix: DEALERS WILL COVER THE WINDSHIELD WIPER MODULE VENT HOLE WITH A PATCH. ALSO, THE WIPER MOTOR, CIRCUIT BOARD, AND ELECTRICAL CONNECTOR WILL BE INSPECTED TO SIGNS OF WATER INTRUSION AND/OR CORROSION AN
CERTAIN MINIVANS, PASSENGER AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." THE OWNER'S MANUAL DOES NOT EXPLAIN THE MEANING OF THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT LOWER UNIVERSAL ANCHORAGE
Risk: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
Fix: OWNERS WILL BE PROVIDED WITH A SUPPLEMENT FOR THEIR OWNER'S MANUAL. THIS SUPPLEMENT DESCRIBES AND SHOWS THE LOCATION SYMBOLS FOR THE CHILD RESTRAINT ANCHORS THAT ARE LOCATED IN THE VEHICLE AND ON THE
| Reliability raw | 57 | average |
|---|---|---|
| Longevity est. | 68 | good |
| Maintenance | 70 | good |
| Depreciation | 92 | excellent |
| Performance | 67 | good |
| Efficiency | 31 | below average |
Percentile ranks against other SUVs in the catalog.
What stands behind each score for this car:
Owners have filed 1,266 complaints with NHTSA for this model-year, and electrical system is the most reported area with 295 of them (23%). There are 8 recalls on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 57/100 (average) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 68/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2003 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 65/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.