TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# PIP-4455.

Affected Component: ELECTRICAL SYSTEM:WIRING

Summary

GMC: MALFUNCTION INDICATOR LAMP ON. THE TRANSMISSION CONTROL MODULE (TCM) WILL NOT OPERATE AS A RESULT OF SYSTEM VOLTAGE SPIKES WHICH WILL AFFECT COMMUNICATION LINES. *PE

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