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# 04192004.

Affected Component: ENGINE AND ENGINE COOLING:ENGINE

Summary

SERVICE ENGINE SOON LAMP BEING ILLUMINATED. WITH DIAGNOSTIC TROUBLE CODES P0507, P0621 OR P0622. GM VOICEMAIL EXPRESS. *TT

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