Toyota Repair Problems? Ask a Mechanic for Answers ASAP
The small button is for an after market alarm system
Is the button also flashing or is a separate light that flashes.
Sounds like a problem with the alarm control module, other than disabling it completely or replacing it with a newer alarm system I have I have no other suggestions. Check for small toggle switch at the left side kick panel and see if it has an OFF seting and you may be abl to just turn it off altogether.