PIC5491C

File in Section:
Service Bulletin
Bulletin No.:
Date:
PIC5491C
September, 2013
PRELIMINARY INFORMATION
Subject:
OnStar Will Not Power Up
Models:
2006-2014 GM Passenger Cars and Trucks
with OnStar (UE1) Gen7, Gen8, Gen9, or FCP1
This PI was superseded to update recommendations and model years. Please discard
PIC5491B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
A concern may be identified on a Gen7, Gen8, Gen9, or FCP1 VCIM as the OnStar system will not power up, no
LED illumination, and/or no response from the OnStar button assembly. This issue may be accompanied by no
communication with the scan tool as well.
Recommendation/Instructions
With the issue present, turn off the ignition, cancel RAP, and perform a 5 minute power cycle of the VCIM. Then test
the OnStar keypresses, LED status, and verify if the VCIM has communication with the scan tool.
If the system still will not power up, continue with normal diagnostics. If the issue is gone, please record module
information in the latest version of bulletin 03-08-46-004 and follow these instructions:
• If the OnStar® Customer Identifier is BETWEEN 88005501 and 91200000, call GM TAC with the customer
concern, this PI number, and requested bulletin information.
• If the OnStar® Customer Identifier is BELOW 88005501 or ABOVE 91200000, no further action is required.
Notice: If the "No Power" concern is eliminated and then returns, the VCIM will need to be replaced.
Warranty Information
For vehicles repaired under warranty use:
Labor Operation
Description
Labor Time
3429919
Customer Concern Not Duplicated (CCND) OnStar®
Use Published Labor Time
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.