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.


pretty bad
Typical Repair Cost:
No data
Average Mileage:
70,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

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

AC / heater problem

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2003 Chevrolet Trailblazer Owner Comments

problem #1

Mar 092009

Trailblazer EXT 4WD V6

  • Automatic transmission
  • 70,000 miles


We purchased blazer in march of 2009 and rear a/c and heat did not work. Dealer agreed to replace free at time of purchase. Then around December 2009 we started smelling odor...smelled like propane. About three weeks later the whole truck filled with smoke and we discovered it was the rear unit. We just don't use it now at all. For some reason it has started running hot losing water through rear heater cord now....go figure!

- , Chatsworth, GA, USA

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