A second opinion .

[zenosls]

The heat on my 2002 ls won't cut off when I turn the ac on .

 

[Richman]

The heat on my 2002 ls won't cut off when I turn the ac on .

I believe you will need to have your dealer flash (re-boot) the computer. I had the same thing happen twice in my 2003 Silverado. Took about 5 minutes.

 

[chris2523]

real old thread.. but its a DCCV issue.