Did you check the lights? They could be dead!
headlights and dash lights in 2001 sunfire wont turn on.
You have to go to the dealer and ask them to turn them off, otherwise they leave them on as running headlights. They will do this for free.
Replace your headlamp switch.
that means your battery will be dead in the morning
If your regular headlights wont turn on but only the brights for your Monte Carlo 07 then you're probably experiencing an outage in the light area. The fuse or the bulbs may also be the cause of the problem.
its got to be two things either your headlights or the headlight switch, theres no relay so straight power from the battery to the switch to the headlamps. just change your headlight and it should work.
try e brakes..turn the e brakes on and see if it turns off.if it does then you have suto headlights
check dimmer switch for headlights
i would assume you need to turn your headlights off as they are the most common reason for the beeping after you turn off the car. My headlights are off and the car is still beeping
normal
The flashing lights are probably the factory alarm.
Check fuses in secondary box under dash left of steering column.