Thread: Heat not working well?

I have an 06 Base and Have been having problems with my heat. It works when the temp is above say 35 F but below that it won't work properly. Both lines to the core are quite hot and my coolant levels are high. It seems like it is even worse when I'm driving on the interstate.

Thanks!

Maybe look into your blend doors, they might not be working correctly.

Vioarr,

I’m sorry you are experiencing this issue with your vehicle. I agree with “Fivefingerdeathpunch”, the blend doors are a possibility.

Consider consulting with a certified technician for an official diagnosis.

If you need assistance locating one near you, please PM me your zip code.

Please keep us posted.

Louis
GM Customer Service