# 2017 Buick Encore - Rear heat is wonky

**URL:** <https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740>\
**Category:** Maintenance/Repairs\
**Tags:** heating, airconditioning, buick\
**Created:** [October 5, 2022, 3:12pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740 "2022-10-05T15:12:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Shep59](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@Shep59](https://community.cartalk.com/u/Shep59)\
**Post date:** [October 5, 2022, 3:12pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740/1 "2022-10-05T15:12:01Z")

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The rear ac is blowing hot air when trying to get cool air, never used it before today. doesir need freon or what?

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**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\
**Post date:** [October 5, 2022, 3:17pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740/2 "2022-10-05T15:17:28Z")

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Sorry, but I can’t check it from here. The hoses on my gauge set just aren’t that long. No one can tell you the state of charge in your system over the internet.

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [October 5, 2022, 5:24pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740/3 "2022-10-05T17:24:51Z")

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Highly doubt front and rear AC are two totally separate units, therefore unlikely low on refrigerant.

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**Author:** ![GorehamJ](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gorehamj/32/24103_2.png) [@GorehamJ](https://community.cartalk.com/u/GorehamJ)\
**Post date:** [October 7, 2022, 1:37pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740/4 "2022-10-07T13:37:44Z")

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Hi Shep. I test new cars for Car Talk. One thing I have learned about SUVs with individual rear systems is that you can be driven crazy by the rear HVAC system being set to something you don’t want up-front. I hope it is as simple as closely checking the settings back there.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [October 7, 2022, 2:16pm UTC](https://community.cartalk.com/t/2017-buick-encore-rear-heat-is-wonky/186740/5 "2022-10-07T14:16:55Z")

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The blend door actuator that directs hot or cold air from the vents may be defective.

Tester