Affected Component: UNKNOWN OR OTHER

Date Published

FEB 01, 2002

NHTSA TSB #

629356

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# 020421002.

Summary

SOME OWNERS MAY COMMENT ON THE SERVICE 4WD INDICATOR ILLUMINATING, IN ADDITION TO DIAGNOSTIC TROUBLE CODE B2725. *TT