2003 Chevrolet TrailBlazer LX from North America - Comments

I was able to fix mine by getting the starter switch or ignition switch replaced, no problems since then. I will never by another Chevy though if/when I get a new car. 6k for a 2003 with 65k miles sounds cheap, is something wrong with it?

2004 Trailblazer -- Have been too many chevy dealers --ignition switch replaced twice and starter replaced. Go out today and it won't start again. Need to replace Trailblazer.

Has anyone had engine problems on their 2003 Trailblazer? At 64,000 miles I just had mine replaced for $8000. I was told the #2 piston exploded in the engine necessitating replacement. I was out of state and at their mercy. Any similar problems?

I came to this website looking for answers regarding my 03 Trailblazer and its alternator issue.

In May the alternator spontaneously caught on fire as we were leaving a restaurant shorting out a battery cable. Luckily we were in the driveway of the restaurant and not on the highway and my husband was able to get the fire out.

It was towed to the dealership, the alternator was replaced along with the battery cable. No problems and running fine for 7 weeks then on my way home from the lake the "battery not charging" light came on. I called OnStar and the diagnostic determined for some reason the battery was losing power and not charging. I made it home and let it sit on Sunday. On Monday morning I headed to the dealership and made it to within 1 mile before it died. It had to be towed again. The battery and alternator had to be replaced that time. I had the dealership check out the electrical system to see if there was something shorting out the alternator. They said nothing was wrong with it. They also checked with GM to see if other dealerships were having a lot of issues with alternators. There were none. At this point I am just hoping to get past the 2 month mark. I have not had any other problems with the Trailblazer before this.

I own a 03 Chevy Trail Blazer, I believe we purchased it in 04. I go to turn the vehicle on today, and nothing happens. Then my husband thinks I'm joking and he tries...NOTHING!! I drove it on Friday and I don't recall leaving anything on. Even though my husband is telling me I left a light on. But, I don't remember turning on any lights especially during the daylight. And, I know the lights come on automatically. So, I have no clue what's wrong it. My keys are stuck and won't come out. I really don't feel like spending thousands of dollars just to tow the vehicle. So, my husband is going to buy a battery and hopefully that's the problem. We've never had a problem wtih this vehicle until today. Even though the cd player won't play my burnt or purchased cds.

I have a 2003 Trailblazer V6 engine.

Battery died a few months ago after listening to the radio while mowing the lawn (not too smart I know).

I had a company come out and jump start the truck. Ran fine for 2 months, then suddenly (note cold weather outside) this morning it wouldn't start at all. Had a company come out to jump start the truck (not the same company), the technician put the leads on and the posts sparked but the truck started.

Great! I think. Until I drove to work. Windows wouldn't roll down, no radio, cannot lock the truck, no interior lights, air conditioning won't work (by then it was warming up outside).

At work I had our Maintenance tech's look at it. We checked all fuses, none blown. Then one of the tech's looked on automotive forum and found someone else with the same problem. The 125 amp "mega" fuse was blown. Drove it to the dealer, part costs $15, drove it to the auto repair shop where a nice guy replaced it for me for $10 after a long conversation about how it couldn't possibly be the main fuse.

Aside from that, other issues I've had with this Trailblazer; gear shifter won't transfer gears without slamming it up and down (something must be stripped), keys won't come out of the ignition periodically, tail lights & head lights frequently blown, weird sounds coming from the engine, the "service engine light" has stayed on for about 3 years (dealer can't find the problem), strange grinding noises when I stop the truck, and lastly the gas mileage is HORRIBLE.

Time for a new vehicle, this time NOT a GM product and NOT a GAS HOG.

Good afternoon all.

I ran into the same issue as everyone else with my 2003 Trailblazer two weeks ago and then again yesterday and today. The truck would not start but after 10 minutes of trying the car would go on. I called GM and they were clueless. After reading this whole post I'll be taking my car tomorrow to have the ignition switch replaced. Will keep everyone posted...

Thanks again for the great info from everyone.