Print this page 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.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
44,196 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 accessories - exterior problems

accessories - exterior problem

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2003 Chevrolet Trailblazer Owner Comments

problem #2

May 202006

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 86,000 miles


Power window switches fail from water dripping on them when the windows are left open are expensive to repair. The vacuum heater/ air conditioning controls fail to operate correctly- the vacuum lines are hard to find and repair. I was told it might cost $1000 to repair. The vehicle is a 2003 Chevy Blazer, I am a mechanic and I can not find where the vacuum lines are routed.

- Willmar, MN, USA

problem #1

Feb 282003

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 2,392 miles
My 11-month old 2003 Chevrolet Trailblazer has had multiple quality problems, twice affecting my safety. Most of the problems have been electrical in nature. The 4WD has become inoperable numerous times, once while driving in snow. In another incident during a severe thunderstorm at night the air conditioner (A/C) failed and I was unable to defrost my windshield in order to see. After one dealer failed to diagnose the 4WD problem, another dealer replaced my ignition switch because the technician said I had no power at all going to the "rear grid." I continue to have intermittent electrical problems, including near stalling at a traffic light, and ongoing 4WD failures. The car also has very jerky motion when in 4WD reverse, of course, when the 4WD is working at all. The dealer told me that was normal and now I see there is a service bulletin on the problem.

- Arnold, MD, USA

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