My H2 AC light just flashes and then goes out.

This is to tell you theres a problem with the ac system, it may be low freon or the ac clutch is not engaging of bad wire or fuse, you will need to have a tech check the ac system and see whats wrong,

If the AC light does not stay on after you push the button and the air does not get cold coming out of the vents the system has a leak and has been evacuated. Once the pressure falls below a certain level the pressure sensor in the AC system tells the AC clutch to dissengage and the light on the dash will also go out to alert you that the AC system is not functioning correctly. The reason it flashes when you push it initially is that the system is trying reading the system pressure and finds none.
<br>Sgt Lumley