2003 Chevrolet Trailblazer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Trailblazer

2003 Chevrolet Trailblazer Problems

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.

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The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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2003 Chevrolet Trailblazer Questions

The air suddenly stopped blowing today and only works on the #4 setting. The #5 setting hasn't worked for a while. I read that could be the blower resistor. Could that be why only #4 works now? Thanks for your help!

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2003 Chevrolet Trailblazer Recalls

CERTAIN SPORT UTILITY VEHICLES HAVE A REAR SIDE CLOSURE LATCH THAT MAY NOT LATCH OR UNLATCH DUE TO CORROSION CAUSED BY ROAD SPLASH, SUCH AS WATER AND ROAD SALT. THESE VEHICLES WERE ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA...

The turn signals may operate like hazard flashers when intending to signal for a turn. The driver may not be able to clearly signal their intentions, increasing the risk of a crash. Dealers will replace the suspect flasher modules with a new flasher designed with sealed relays for better durability. The recall began August 4, 2005. The GM recall number is 05044.

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.

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2003 Chevrolet Trailblazer Reviews

Had high mileage when I bought it. No real problems aside from regular preventative maintenance. Works great.

my shifter keeps getting stuck and wont let me take the key out

Bought this new. Had to replace the engine at 82k. GM did not want to talk about it. Service engine on the computers recommendations. I got 93k out of the brakes and 80k out of the tires. I now have 180k on the vehicle with 98k on the new engine. Just replaced the catalitic converter. Is on third set of tires and second set of brakes. Alternator, power steering and water pump all orgiginal. Jus...

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