Prestige a1btx My remote car starters(2) A1BTX just stopped working one day on my '07 Aspen. lock un lock panic are all fine on the other fob. also there is a little toggle switch under my steering wheel in the up/on position... Is this a fuse problem or programming problem?

panic over what a possible dead battery in fob --change the battery

This is an easy one, when you had the new when you had the new fobs coded, did you have the old fob recoded. When the fobs are recoded, they remove previous codes on fobs keys etc and need to reset everything

BAD FOB?
or battery weak in fob?. replace them?
always have 2 fobs, so you can isolate problems and not get stranded.

is running engine charge lamp out?

or the button on the fob, panic, is bad,
to prove this take the battery out of FOB in use
and use the spare fob with fresh battery.
this proves its the fob, see how?

yes..go have your codes read at your auto parts store ..they can reset this free

I think you should go for owners manual for the repair of remote.
May be this will help you. Pontiac Grand Am 2000 Owners Manual Download

The wire that is turning on the heater and radio needs to be hooked to the ignition or maybe your starter solenoid.

There's a website that has all this information about all this and manuals everything totally free there are many actually but I personally like few .. let me know if u need help
thanks

That is your factory alarm. I will assume that this Prestige unit is a remote starter with keyless entry...and you are using the Prestige unit to unlock the doors. Apparently, the unlock wire is connected but, the factory disarm is not. You can turn off your factory alarm by unlocking the vehicle with the key.

It takes a CR1220 Li Battery.

Pics of it apart

have to reprogram remotes.......see programming remotesi posted is for aps921 and aps901n that remote is the A1BTX