Resetting/Reprogramming security system in 2003 Avalanche

Hi, A few months back I "accidentally" flipped /pushed in a couple switches under the driver's side dash. I assume that they have to do with the security system? I'm able to remotely Lock/Unlock and remote start the vehicle, but when I enter the vehicle I hear a "clicking" noise hat sounds like I have the directionals on. Then when I try to manually start the Avy, there is no dash lights on and it does not start. I then press the unlock button on the remote and I'm able to manually start the Avy.

Would anyone have any suggestions as to how to fix this, get back to the original settings?

Thanks for any info you can provide

doubt that is stock alarm since there are no buttons or switches or anything to stock alarm.

for stock alarm all you do is lock doors and it is armed.

SO my guess is previous owner added soemthing to those switches... and you need to figure them out.

Thanks so much.