Hi I have a 2000 bonneville. The wife was driving it today and it stalled.
Would not restart. No crank.
Checked the battery and it is good. Going to check the starter tomorrow if it'* not the starter what should I check? I wouldn't think a bad starter would make the car stall.

find and clean your big grounds and power cables. those being loose or corroded will cause the car to stall and not crank

Ok thanks. I will try that this morning.

All the connections are good. I just noticed if I wiggle key while I try to start it will crank and start then die.
Any ideas?
Do I need to reset the security? If so how?

If the security light is flashin..it'* upset. Likely though you have a bad ignition switch.

The light stats on when key is on. Flashes when key is out.

Ok. So after cleaning all cables and connectors.
Now she starts every time. But you have to keep your foot on the gas. If you let it idle it dies.

sometimes they have to relearn some. does it run rough when its running? check engine lights? security light when it shuts off? does it say pk3 on your key?

Yes key says PK3
Now it runs great. Ran rough first few times.
Still have no idea why it died and wouldn't restart.

takes a little while after power loss to run right sometimes.