Air Only Comes From Defrost Vents
No matter which mode you select, air only comes out of the windshield (defrost) vents. This is a mode-door (vent selection) problem.
Find a TechnicianCommon causes
- Failed mode-door actuator
- Broken or stuck mode door
- Loss of engine vacuum (on vacuum-controlled systems)
- Climate control module fault
- Wiring/connector problem at the actuator
Frequently asked questions
Why does air default to the defrost vents?
Many systems fail 'safe' to defrost so the windshield stays clear, so a broken mode door often leaves air stuck there.
Is it safe to drive like this?
It's drivable, but uncomfortable and the windows can fog in humid weather, so it's worth fixing soon.
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