Chevrolet Trailblazer Repair and Maintenance

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

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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.

I have a vibration when in drive while holding the car still at a stop light

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light is on solid and car goes 5mph- took it to shop, changed out throttle body for $ he says the bad throttle body burned the ecu unit and I have to replace that now...costs around $300 for ecu at autozone and labor no idea- can a bad throttle body cause a ecu to burn out? or was It ...


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These vehicles are being recalled because the headlamp driver module (HDM) can overheat and fail. This will cause the headlights and daytime running lights to stop working. Loss of this lighting will affect the ability of the driver to see the road and reduce the vehicle's visibility to oncoming vehicles, both of which increase the risk of a vehicle crash. The remedy for this problem is still under development and not yet available.

The module that operates the power window and lock switches can allow moisture in, causing corrosion that can lead to a short circuit. This results in window and lock functions not working, and creates a fire risk. Dealers will inspect and replace affected modules free of charge to resolve the concern.

Fluid may enter the driver's door module, causing corrosion that could result in a short circuit in the door module. A short circuit may cause the power door lock and power window switches to function intermittently or become inoperative. The short may also cause overheating, which could melt components of the door module, producing an odor, smoke, or a fire. Dealers will inspect the driver's door module, if it is functioning correctly, a protective coating will be applied. If the module is not functioning correctly, it will be replaced. The GM recall number is 12180.

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I hate this vehicle...the mileage sucks for one, the fuel pump failed before the warranty expired, no help had to pay like $588.00 for a new one and labor, now the evap system for the fuel injectors are out another $600.00 bucks. The lights dim when you use the windows, the center console has no support, the seats are falling apart, wind noise is unbelievable, and speakers are all out of wack s...

I have had nothing but problems with this vehicle after the first year and Chevy dealership would not do anything to help. I have had the fuel sensor go bad, the fuel pump, fuel contector, the shocks and struts have all been replaced within the first year. I used to be a chevy buyer all my life and lately have no faith left in Chevrolet.

I bought my new 4WD 2002 Chevy Trailblazer LS in 2001 and it's still on the road with almost 315K miles. I've had some work done to it over the years, particularly with the front end but everything still works including the 4WD, which I used a lot during this past severe winter. The straight 6 engine and differential gearing won't beat anyone off the line but it delivers enough power to pull ...

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