my head lights on my Tahoe keep shorting off and on and sometimes A/C shorts off and on and battery light flickers off and on any body know?
I think you should have your battery and alternator tested. In most cases, when the battery light comes on it requires an alternator. For the lights, I think there might be a loose connection somewhere at the headlight switch.
It's probably the battery
You have a electrical problem that should be diagnosed soon. It may only be a battery but if it is in fact a short somewhere you could have a fire. Get it checked soon.
Sounds like you have an ignition switch going bad