Canyon 4WD V8-5.3L (2009)
Body Control Module: Customer Interest
Body Controls - Security Lamp ON After Start Up
TECHNICAL
Bulletin No.: 09-08-56-001
Date: March 12, 2009
Subject:
Security Light Remains Illuminated After Vehicle Has Started/No Stored DTCs (Reprogram BCM)
Models:
2009 Chevrolet Colorado
2009 GMC Canyon
2009 HUMMER H3, H3T
Note
The information contained in this bulletin applies to vehicles located in the U.S. only.
Condition
Some customers may comment that the Security Light remains illuminated after the vehicle has started. Upon further investigation, no DTCs will be
found in the Body Control Module (BCM) and Engine Control Module (ECM).
Cause
This condition may have occurred when the ignition switch was rotated from "Crank" back to "Run" and momentarily went too far and entered
"Accessory" for a fraction of a second. When the BCM sees the Accessory signal after being in "Crank" it is again waiting for the Passlock signal in the
"Crank" mode to turn the light off.
Correction
Important
Do Not replace the ignition switch for this concern.
1. Verify the customer concern.
2. If there is a stored DTC (ECM and BCM), follow published diagnostics in SI.
3. If the concern can be verified and there are no DTCs, reprogram the BCM using SPS with the latest software available on TIS2WEB. Refer to the
Service Programming System (SPS) procedures in SI. Make sure your Tech 2(R) is updated with the latest software version.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer
