Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: The Trailblazer emerged from an "upscale trim line" of the Blazer, but there's nothing upscale about its transmission problems or its wonky, unpredictable headlights.


really awful
Typical Repair Cost:
Average Mileage:
104,281 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. replace cooling fan (1 reports)
  2. replaced locked up fan clutch (1 reports)
2002 Chevrolet Trailblazer cooling system problems

cooling system problem

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2002 Chevrolet Trailblazer Owner Comments

problem #2

Dec 152010

Trailblazer LTZ 4.2L V6

  • Automatic transmission
  • 110,000 miles


This was a pain in butt because the fan clutch locked up with the fan on high, and the car made a roaring noise. There was no power with the fan working like this.

- , Muskogee, OK, USA

problem #1

Apr 282010

Trailblazer LT 4.2L V6

  • Automatic transmission
  • 98,562 miles

Cooling fan roars at start up and won't quit. Had to replace fan. Very costly. Replacing a cooling fan should not cost this much. Its just a fan. Chevrolet made this as costly as they could and hard to replace so a person has to hire it done.

- , Newton, IA, USA

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