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:
Average Mileage:
105,000 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. replaced the alternator (2 reports)
2003 Chevrolet Trailblazer engine problems

engine problem

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2003 Chevrolet Trailblazer Owner Comments

problem #2

Mar 092010

Trailblazer EXT 4WD V6

  • Automatic transmission
  • 100,000 miles


Alternator went out without with other complaint about alternator, we too had a battery that was less that 6 months old. My brother helped me replace it but just the cost of the alternator was $300. Now apparently there is a recall on that alternator that can cause a fire when the engine is off!!!! Great! Here we go again.

- , Chatsworth, GA, USA

problem #1

May 192009

Trailblazer LX 3.2L V6

  • Automatic transmission
  • 110,000 miles

Well here I am with another complaint. Last week the alternator went out on me. My battery kept being drained so I took it into the shop and had them replaced the part. They charged me $550 to fix and replaced the alternator. I also had to replace the battery because of all the problems with the alternator and the brake switch basically drained and killed my 1 year old battery.

- , Washington, DC, USA

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