Lets see so many issues assuming it will start this morning cuz the security system messes up prob twice a year it has to stay on a charger all night to reset itself so i put rear end oil in it yester

SOURCE: P1870 Code//Transmission Question

have you had the fluid and filter changed, it could be that simple
try the simple stuff first "ya...know"
after changing it clear the code and see if it comes back.
i have come across this in mid to late '90 model gm's

SOURCE: 04 pontiac grand prix wont start.

first remove the battery and take it to a auto parts place and have them check it. move on from there. if the battery is good the do a starter draw test. take a meter and hook it to your battery. now have someone try and start the car. if the voltage on the battery drops from 12.8 to below 9 volts then the starter is bad. if the voltage doesnt drop much at all then its prolly the solenoid both of which require starter replacement since most solenoids are on starters. if still nothing then check ignition switch. but before anything else ensure vehicle is in park. if it is in part use a meter to test neutral safety switch.

SOURCE: Car is stuck in park. Wife drove home last night

TRansmission went on the car you may have to buy a new transmission

SOURCE: My 2002 pontiac aztek battery light came on

replace the altenator.

SOURCE: i have a 2000 pontiac Bonneville sle and it was

I had the same problem with my 2000 Bonneville SLE and I replaced the crank shaft sensor and it solved the problem. The crank shaft sensor is located behind the harmonic balancer. You have to take the balancer off to get to the part. You will need a puller to get it off. You will also have to take the fly wheel cover off and hold the fly wheel when you remove the nut from the front of balancer.