PIC5491K
Service Bulletin Details
Public Details for: PIC5491K
This preliminary information communication provides information to the technician about vehicles that have an onstar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehic
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Bulletin No.: PIC5491K Published date: N/A Preliminary Information PIC5491K OnStar Will Not Power Up Product Investigation Review Required Models Brand: Model: VIN: Model Years: from Engine: to Transmissions: All All 2006 - 2018 All All All All All All 2000 - 2015 All All All All 2006-2018 GM Passenger Cars and Trucks With OnStar (UE1) Gen7, Gen8, Gen9, FCP1, or Gen10 2000-2015 GM Passenger Cars and Trucks With Canada OnStar Upgrade (per latest version of bulletin 15-08-44-001) Supersession Statement This PI was superseded to update Model Years. Please discard PIC5491J. Condition / Concern A concern may be identified as OnStar system will not power up, or no LED illuminated and no response from the OnStar button assembly on a vehicle with a Gen7, Gen8, Gen9, FCP1, or Gen10 OnStar system. Some technicians may also note that there is no communication with the OnStar module when attempting to communicate with the scan tool (GDS2/Tech2). Recommendations / Instructions With the issue present, turn off the ignition, cancel RAP, and perform a 5 minute power cycle of the VCIM. Then test OnStar key presses, 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 eliminated, no further action is required. Note: If the "No Power" concern is eliminated by performing the above procedure, and the "No Power" concern returns and a power cycle resolves the issue again, the VCIM will need to be replaced. Warranty Information Labor Operation Description Labor Time 3480678 Perform OnStar Power Cycle 0.5 3422790 Communication Interface Module Replacement Use Published Labor Time Additional SI Keywords U0198 © 2016 General Motors. All Rights Reserved.