Won't start and won't turn over are 2 different things. If it will not turn over then look at the starter or ignition switch.
Your car wont start. lol
Jump start car and ensure alternator and battery are good.
Saturns don't like the cold. Keep your battery in good condition and try to garage it.
Check the battery cables. If there is no corrosion and you have good connections, then the starter solenoid/relay may be at fault.
Does it turn over? Does it have spark? Does it have fuel? Does it turn over? Does it have spark? Does it have fuel?
That could be the alternator or the battery. Try jump starting your car with another car's battery. If it still does not start, it is probably the alternator. If it starts, your battery is dead.
Dead battery ?
It could be because its running out of battery
these might be your problems: BATTERY IS DEAD CORROTED BATTERY TERMINALS STARTER IS NO GOOD ALTERNATOR IS NOT CHARGING those are the only things that have to do with the car not starting
Make sure the Car is in PARK, if it is in gear like Drive or Reverse, the Car won't start even if the battery and starter are fine.
you drain your battery when you leave your lights on
you can but it wont stay running if the battery is dead