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.


really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
63,046 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Trailblazer EXT accessories - interior problems

accessories - interior problem

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2003 Chevrolet Trailblazer EXT Owner Comments

problem #4

Jan 102012

Trailblazer EXT 4WD 8-cyl

  • 83,000 miles


The drivers seat heater got very hot and then stopped working shortly after. I did an internet search and found that this is very common. I found that one of the wires had overheated and actually burned the foam and covering. There are many complaints and pictures on the internet. I removed my seat and found the exact same problem. I am astounded that nothing is being done to stop the use of these defective heaters. This is most certainly a very serious fire and burn hazard.

- Beloit, WI, USA

problem #3

Feb 152009

Trailblazer EXT

  • 50,000 miles
Power seat on driver's side has stopped working. I am told this is either a software update/upgrade or a repair depending on who you talk to. If the dealer is willing to work with you and not take advantage of you they will do the software upgrade. If not willing to work with you they will sell you a new seat motor and charge you at least $400 for installation.

- Abington, PA, USA

problem #2

Sep 122006

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 82,000 miles
Driver side seat detached from seat frame recently. I turned towards the back of my Chevy Trailblazer ext to talk to my kids and the right side of the drivers seat broke from the seat frame. Upon inspection, there's a flimsy piece of metal holding the seat to the seat frame. When I brought it in to the service dealer, he said the whole seat needs to be replaced at a cost of over $800. He said I can call GM to report the issue and that they may offer me a deal to split the cost since the vehicle is out of warranty. I believe this is a manufacturer's defect because it has never happened before in any car that I've owned in the past. Waiting resolution to my complaint from GM, but this is condition may lead to future accidents!!

- Tomkins Cove, NY, USA

problem #1

May 162005

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 37,185 miles
Drivers seat will move to the "exit posistion" while driving. The last time this happened the driver was pulled away from the brake pedal while making a right hand turn and drove off the road. The vehicle has been taken to the dealership several time for repair with no luck.

- Greenwood Lake, NY, USA

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