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: Carrying the not-so-proud traditions of its 2002 predecessor, the 2003 has a handful of instrument panel malfunctions that can leave you guessing your speed, engine temperature or how much gas is left in the tank.


really awful
Typical Repair Cost:
No data
Average Mileage:
95,000 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
2003 Chevrolet Trailblazer AC / heater problems

AC / heater problem

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2003 Chevrolet Trailblazer Owner Comments

problem #2

Sep 122011

Trailblazer LS 4.2L

  • Automatic transmission
  • 100,000 miles


Ok so my truck's ac wont stay on while idling. DOES ANYONE KNOW WHY OR HOW IT CAN BE FIXED??????

- , San Antonio, TX, USA

problem #1

Jan 012009

Trailblazer LS Vortec

  • Automatic transmission
  • 90,000 miles

I have had the AC/Heat repaired 2 times while under warranty, now that the warranty is up, the car chokes out if the AC/Heat are on and you stop at a stop sign or red light.

- , Statham, GA, USA

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