Methods and apparatus are provided for providing an indication to a person
external to a vehicle, of an occupant inside the vehicle. The method
comprises determining whether a first object in the vehicle is an
occupant, based, in part, on a weight of the first object; sensing
whether an ignition of the vehicle is in an off position; detecting
whether a first door coupled to the vehicle has been opened and closed,
if the vehicle ignition is in an off position; if the first door has been
opened and closed and an occupant is in the vehicle, measuring a first
time (T.sub.1) from an instant the first door is closed to an instant
after the first door is closed; and activating the alert, if T.sub.1 is
greater than a predetermined threshold time (T.sub.threshold).