Ineed to know how to get the passkey off my 2002 pontiac grand prix

You cannot reset it... The computer checks for the current resistance every time you start the car... in other words... it resets itself everytime you turn the key on. If it still won't start the next time, its because it still isn't reading the correct resistance.

The only difference between the Passlock system and the older PassKey system is that the resistor is built into the ignition switch instead of the key. This way, any key that will turn the ignition will start the car (because turning to the on position lines up the resistor in the switch) but the car still cannot be hotwired. If one of the wires sending the resistance reading to the computer is pinched, severed or disconnected... or if the resistor in the ignition switch is worn, the computer cannot read the correct resistance and disable the starter and fuel injectors for 3-5 minutes. The resistor may just be dirty... buy "brake and electric motor cleaner" from NAPA and spray it in the keyhole. If this doesn't work check the two small wires going to the switch in the steering column or you may need a new ignition switch. If the ignition switch is replaced, the cars computer will have to be set to the new resistance.
Try to place in park, shut off the ignition and get out of car, locking it as to depart then unlock and get in, insert key, turn to ACC and turn the lights on and off three times then turn ignition off and on to start the engine. This may work, not sure.
Best of luck