Car question

[sexobon]

It could be that the battery has enough charge to operate accessory lights and alarm; but, not the door locking motors or starter. See if the headlights turn on to full brightness and maintain for a bit.

If the gear shift lever isn't fully engaged in Park the car may not start. That circuit connection could also be faulty. You could try starting it while manipulating the shift lever. You could also see if this is a car that will start in Neutral.