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# 3197.

Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE

Summary

VIBRATION AT ALL SPEEDS DAMAGED TRANSMISSION TAILSHAFT BUSHING CRACKED EXHAUST AT CATALYTIC CONVERTER. *EH

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