Security light stays on and I cannot start the car?

20,000 MILES
Avatar
SALSAFUN458
  • MEMBER
  • 1 POST
Can I remove the pass lock chip in the PCM for a 2003 Chevy trailblazer?
Jun 20, 2023 at 5:54 AM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

No, that isn't possible. We need to figure out why it is staying on. Try this and let me know the results.

Turn the key to the run position and allow it to stay on for approximately 10 minutes. The security light should turn off. See if the vehicle starts. If it does, we are going to perform a 30-minute relearn. See attached below.

Let me know what you find.

Joe

See pic below.
Jun 20, 2023 at 3:58 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle