No heat on passenger side

Tiny
TJWILSON
  • MEMBER
  • 2012 BUICK ENCLAVE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 94,000 MILES
What would cause no heat from passenger side vents? It only blows out cold air. The driver side and rear vents do blow out heat.
Tuesday, December 3rd, 2019 AT 4:32 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

There is a blend door actuator that controls the heat and cold command. It looks like it has failed.

This is a very common failure. I attached the picture and procedure for replacing the actuator. It is located behind the glove compartment door s shown in the picture.

Roy
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Tuesday, December 3rd, 2019 AT 4:56 AM

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