remote start not installed properly the full way. factory alarm should only be able to be armed with your factory remote lock button and has the possibility of being armed by using the key in the driver door and lock button while door is open.

Factory alarm can be disarmed by unlocking the car with the key in the driver door and possibly by unlocking with the remote. To disarm it with the remote start they have to wire the factory alarm disarm wire from the remote start to a wire in the driver kick panel.