2008 GMC Envoy Repair Question
Topics covered: Blower motor.
Mileage: 440,000 miles.
Mileage: 440,000 miles.
Asked on February 1, 2011
Heating or Defrost Problems
Why does the heat/defrost stay on sometimes in my 2008 GMC Envoy evn though the ignition is off and the keys are out?
Answer
Replied on February 1, 2011
You have a problem between this two: HVAC control module or the blower motor control module