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CarComplaints.com 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 warning...as 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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