2002 Buick Rendezvous Logo
Posted on Mar 09, 2009
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HVAC vent selector does not function. Air flow is

HVAC vent selector does not function. Air flow is always directed to the windshield defrost vents no matter which vent position is set by the selector.

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Robert Kerman

Robert Kerman

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  • Posted on Mar 09, 2009
Robert Kerman
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Joined: Jul 22, 2008
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THe blend door seems to be stuck. When you change settings from defrost to floor air or, vent, the blend door opens and closes directing the air to the place you want it to go to. I have had some success spraying a lubricating oil such as WD40 under the dash on the blend door. You need to get under the dash with a flashlight to locate it. It looks like a flap. Spray it with a couple of shots of the WD40. Go easy on the spraying as you may be inhaling the fumes. Keep the doors and windows open to minimize the fumes. Wait about 1/2 hour and try the A/C functions. (defrost, floor, vent air)

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