Why are the cluster and dash lights staying on when I shut off ignition?

Tiny
PIPPIN1
  • MEMBER
  • 2005 CHEVROLET TRAILBLAZER
  • 193,000 MILES
Cluster and dash lights stay on when I shut off ignition.
Monday, January 27th, 2025 AT 6:38 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,346 POSTS
Yep, that would be a BCM error, so it sounds like the BCM is bad. I would do a CAN scan to be sure. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is how to change the BCM out, you can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Let us know how it goes.
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Monday, January 27th, 2025 AT 11:24 AM

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