Could be aftermarket security system?

I have a 2016 Toyota corolla le with an aftermarket alarm. My car starts just fine with no warning lights on the dashboard. The only thing blinking is the aftermarket car alarm which I don’t know anything about unfortunately. The car alarm came when the vehicle when purchased new. When I started driving, the car honks three times while the security light is blinking, repeats times two then the car starts honking, with signal lights beeping, it stops after 10 seconds and repeats the process. Does anyone know what it could be?

Steps I’ve taken to fix it was unlock and relock car with key fob, disconnecting and reconnecting car battery as well.

Any other tips