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:
100,457 miles
Total Complaints:
44 complaints

Most Common Solutions:

  1. rebuild the transmission (31 reports)
  2. not sure (10 reports)
  3. replace transmission (4 reports)
2002 Chevrolet Trailblazer transmission problems

transmission problem

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2002 Chevrolet Trailblazer Owner Comments (Page 3 of 3)

« Read the previous 20 complaints

problem #4

Jul 202007

(reported on)

Trailblazer LS V6

  • Automatic transmission
  • 83,000 miles


Same vehicle same problem. Transmission rebuilt sep 04 at 39000 miles, now broke again at 83000 miles. This sucks have been loyal GM customer since i have been old enough to purchase a car. this is my last GM vehicle

- , Oklahoma City, OK, USA

problem #3

Jul 202007

(reported on)

Trailblazer LS V6

  • Automatic transmission
  • 39,000 miles

just 3000 miles past the warranty and the car would not go in reverse. After much hell raisin GM paid for the rebuild of transmission as I had kept up all regular maintenance

- , Oklahoma City, OK, USA

problem #2

Jan 232007

(reported on)

Trailblazer LX V6

  • Automatic transmission
  • 80,000 miles

This transmission seemed to be slipping from day one. the bad thing is the new one does the same thing and I'm supposed to accept that because "that's the way they are"

- , Mesquites, TX, USA

problem #1

Dec 042006

(reported on)

Trailblazer LT 4.6L

  • Automatic transmission
  • 75,000 miles

General Motors has admitted that they have a problem with the 4L60E transmissions that they use in the Trailblazer, Envoy, and Bravada lines. The reaction sunshell and reaction sungears fail. These are faulty parts from the manufacturer and us as the consumers are having to pay for this. They admitted the problem in their TSB #00822B but don't want to help pay for or all of the repair cost. You can also find this problem on the NHTSA site under #10005474. Get the word out, GM needs to own up to this and help there customers.

- , Beaufort, SC, USA

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