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# 01663A.

Affected Component: STRUCTURE

Summary

VIBRATION NOISE FROM UNDER HOOD, SOUNDS LIKE SHEET METAL VIBRATING. *TT

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