Affected Component: ENGINE AND ENGINE COOLING:ENGINE

Date Published

JAN 01, 2004

NHTSA TSB #

10011129

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# 040605001.

Summary

SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0420 SET. *TT