Ya, i also realised that. The sensor will jus beep and indicate that the key is undetactable but the car still can continue driving, not sure how far though, cos i only drive it into the parking lot.
Thought immobiliser should cut the engine when the car try to move forward without sensing the key? At least that's what my previous alarm used to do on my previous car. Not very sure about Latio.
Someone pls advise.