# 2016 GMC Terrain - AC issues

**URL:** <https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650>\
**Category:** Maintenance/Repairs\
**Tags:** airconditioning, gmc\
**Created:** [June 24, 2021, 7:18pm UTC](https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650 "2021-06-24T19:18:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![EvaHBishop](https://avatars.discourse-cdn.com/v4/letter/e/94ad74/32.png) [@EvaHBishop](https://community.cartalk.com/u/EvaHBishop)\
**Post date:** [June 24, 2021, 7:18pm UTC](https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650/1 "2021-06-24T19:18:06Z")

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A/C is not cooling. I turn off the ignition and a fan continues to run for 10 minutes with key removed and doors locked.

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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:** [June 25, 2021, 12:22am UTC](https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650/2 "2021-06-25T00:22:25Z")

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Have you checked for any debris on the AC condenser?

Tester

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [June 25, 2021, 2:13am UTC](https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650/3 "2021-06-25T02:13:05Z")

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Gm has after boil circuit. Some of my gm rigs fans run after shutdown if ac was switched on at stop. I notice the fans don’t run if ac was off at shutdown.

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [June 25, 2021, 2:42am UTC](https://community.cartalk.com/t/2016-gmc-terrain-ac-issues/177650/4 "2021-06-25T02:42:15Z")

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this may give you some ideas where your problem is.  
[Car Fan Still On When Engine is Turned Off - YOUCANIC](https://www.youcanic.com/article/car-fan-still-when-engine-turned)  
I would guess a faulty coolant temperature sensor