We don't have a lot of Cadillac STS AC / heater problems on file — feel free to add yours here. The most common STS AC / heater problems cost $1,400 to fix & occur at 110,000 miles. Click on a year below.

Worst AC / Heater Problems
a/c condenser leak 2006 Cadillac STS
AC unit will not hold charge 2005 Cadillac STS