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# 3688A.

Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR

Summary

BLOWER MOTOR INOPERATIVE IN ANY ONE OR MORE BLOWER SPEED. *TT

Click a tab for more information.