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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
92,224 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 windows / windshield problems

windows / windshield problem

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2003 Chevrolet Trailblazer EXT Owner Comments

problem #9

Aug 212012

Trailblazer EXT

  • 193,843 miles


The contact owns a 2003 Chevrolet trail Blazer ext. The contact stated that while driving 35 mph, the front driver side window failed. The contact stated that she tried to roll the window down but it failed. The contact let the vehicle sit for a few hours and the windows began to work. The failure recurred a few times after. The vehicle was not taken to the dealer for inspection. The vehicle was not repaired. The manufacturer was made aware of the failure who did not offer any assistance since the vehicle was not included on any recalls. The failure mileage was 193,843.

- Jessup, GA, USA

problem #8

Feb 172009

Trailblazer EXT

  • miles
Stopped at a stop light the car would not go forward would go backwards had just had transmission replaced 1 year before only had 79K miles bought the car brand new both driver window motors have gone out seal to front driver door transmission replace pwr steering--rack and pinions and usually have regular check up worst car I have ever bought.

- Merrillville , IN, USA

problem #7

Jun 022008

Trailblazer EXT

  • 53,122 miles
Drivers side front window falls down without warning, into the door. Will not roll up into the fully closed position when electric window switch is activated. Must manually push the glass into the fully closed position, however, as stated above, it will fall without warning. This creates a serious hazard in that when the window falls without warning, not only can the driver be startled and make a driving error, but also, given the exterior conditions, create a very unsafe driving / operational environment which could result in a crash.

- Round Rock, TX, USA

problem #6

Jan 282006

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 88,000 miles


The rear left passenger window began to grind when letting it up and down then it quit working. The right front passenger began to do the same thing soon after. The windows currently have a suction cup holding them up.

- Danville, VA, USA

problem #5

Nov 302006

Trailblazer EXT

  • miles
Right passenger window was rolled down and then would not come up. Window glass was loose would not stay up. Took to dealer. Window regulator replaced for a total of $350.

- Durham, NC, USA

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problem #4

Aug 222006

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 400,050 miles
Multiple problems with this vehicle with only 40,000 miles on it! power window assembly broke and repaired twice on the same door, inoperable climate control unit, front dashboard gets extremely hot at all times, brakes squeal all the time (dealer could not figure it out and was remedied with ceramic brake pads after multiple attempts), transmission has poor shifting pattern (bulletin provided a new shift program for the transmission and the dealer installed but is right back to it's original problem after 3 months).

- Rochester, NY, USA

problem #3

May 012006

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 50,000 miles


Driver/passenger electric window malfunctions in that window will fall/lower itself. Dealer stated the electric regulators that aid/assist the window in raising/lowering continue to malfunction.

- Katonah, NY, USA

problem #2

Aug 122006

Trailblazer EXT 4WD

  • Automatic transmission
  • miles
: the contact stated when the rear right automatic window was opened, there was a groaning noise, followed closely by the window sliding open without warning. The vehicle was taken to a service dealer, where it was determined that the window motor needed replacement.

- Toronto, OH, USA

problem #1

Aug 012005

Trailblazer EXT 4WD 6-cyl

  • Automatic transmission
  • 45,000 miles
You start to hear a noise when the window is being put up or down, then eventually the mechanics of the window break and the window falls into the socket and will not go up or down. Two of my windows needed to be repaired, costing me several hundreds of dollars later. Same situation in two of my friends cars. Same make and model.

- Patchogue, NY, USA

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