2002 Cadillac Sevile STS defrost mode

Asked by Jan 24, 2016 at 01:04 AM about the 2002 Cadillac Seville STS

Question type: Maintenance & Repair

When I hit the defrost button (Windshield) nothing happens. The heater mode and fan works fine coming out of the dash vents but will not switch over to defrost vents. Help.

2 Answers

50,125

HVAC blend door module would need replacing.

Thanks for your help. I will try doing that,

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