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# 161001.

Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

Summary

BRIEF INFORMATION ON VEHICLES EXHIBITING DIAGNOSTIC TROUBLE CODE P0420 CATALYST SYSTEM LOW EFFICIENCY BANK ONE. *TT

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