Defrosting Insufficient. GMC Truck Yukon XL

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon XL - 4WD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Defrosting Insufficient

Problem

Action

The defroster nozzle is obstructed.

•	Inspect the defroster nozzle.

•	Remove any foreign objects.

•	Repair any loose instrument panel pad that blocks an outlet.

The defroster air valve actuator is faulty.

•	Inspect the defroster air valve operation.

•	Replace any faulty actuator valve as necessary.