# 2018 GMC Sierra 1500 stinky AC **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** sierra1500, gmc\ **Created:** [August 4, 2018, 10:21pm UTC](https://community.cartalk.com/t/2018-gmc-sierra-1500-stinky-ac/122298 "2018-08-04T22:21:26Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![JohnKlem](https://avatars.discourse-cdn.com/v4/letter/j/e495f1/32.png) [@JohnKlem](https://community.cartalk.com/u/JohnKlem)\ **Post date:** [August 4, 2018, 10:21pm UTC](https://community.cartalk.com/t/2018-gmc-sierra-1500-stinky-ac/122298/1 "2018-08-04T22:21:26Z")
AC stinks like something died in the vents. What is this? What can be done about it? ---
**Author:** ![COROLLAGUY1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/corollaguy1/32/7575_2.png) [@COROLLAGUY1](https://community.cartalk.com/u/COROLLAGUY1)\ **Post date:** [August 5, 2018, 10:09am UTC](https://community.cartalk.com/t/2018-gmc-sierra-1500-stinky-ac/122298/2 "2018-08-05T10:09:54Z")
See your dealer because your vehicule is under warranty ---
**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:** [August 5, 2018, 1:57pm UTC](https://community.cartalk.com/t/2018-gmc-sierra-1500-stinky-ac/122298/3 "2018-08-05T13:57:30Z")
Maybe a squirrel/rat built a nest in your vent? Not covered by warranty. Maybe comprehensive on your insurance? ---
**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\ **Post date:** [August 5, 2018, 4:05pm UTC](https://community.cartalk.com/t/2018-gmc-sierra-1500-stinky-ac/122298/4 "2018-08-05T16:05:46Z")
Well, if it smells like something died in your vent system then maybe something did. For sanitary reasons it needs to be looked into and cleaned out, but it will be on your dime, not the dealerships. Rodents get into the smallest oddest spots.