My 2003 Chevy TrailBlazer wouldn't turn off.
I was able to turn the ignition to the off position, take out the key and then noticed that it was still running, I couldn't get it to turn off. I then drove about 5-7 miles and then it powered down, I was able to pull to the side of the road. I waited about 3 minutes and it started up fine. What is the problem? Electrical or the ignition?
Sounds like the ignition switch. Speak with your local Chevy Dealer to see if your Trailblazer is currently under recall for the ignition switch. Many GM vehicles from that time period are. HTH. -Jim
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