TSB Document:

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

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 4256.

Affected Component: ELECTRICAL SYSTEM

Summary

VARIOUS ELECTRICAL CONCERNS. BRAKE WARNING LAMP ON, AND EXTERIOR LIGHTS ARE INOPERATIVE. *KB

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