Check your battery connections and make sure they are tight and not corroded. If that don't work take the battery out and take it to and autoparts store. Most will check it and re-charge it for free.
Some times the battery will have enough power to turn lights on but not enough to turn the engine over. Try to jump start it or replace battery with one you know is charged. By the way-nice car.
Because your car runs on gas but your lites run on a battery.
Crank but not start and run, possible. Not to crank, start or run, no. No lights or horn, no.
security system need to be check take the car to the nearest Pontiac car dealer to have it reprogram
Your car won't start. No electrical items will work (radio, lights, power windows/locks...)
The starter may be at fault.
It could be ignition module.
Sounds like a dead car battery. Do any lights or electrical accessories work?
there is a short in the relay for the head lights
See if the battery has water. Then see if it will jump with jumper cables. If it will start with jumper cables, your battery had enough amperage to make the lights work and the radio to play but not enough to start the car.
Will your lights headlights come on? Will anything work? Had something like that happen to me years ago. I had no lights and nothing worked. Turned out it was an alternator. There could be something else that would be wrong but, it would be something to check out.
Dead battery? Loose or corroded battery cable? Blown fusable link?