It will depend on year of Pontiac Grand Am and whether you are looking for high-beam or low beam. See sources and related links below to lookup by make, model and year.
are you trying to change the entire headlight assembly? or just the bulb.
how do I change the headlight bulb in my 2994 Pontiac grand am gt.o
No, the only thing it could possibly do is blow the bulb.
There are bolts surrounding the headlamp. remove these and the wires.
See posting for "How do you change the headlamp bulb in a 2003 Grand Prix?" All these model years are similar in production for the headlamp assembly.
Remove the headlight by taking out the three 10mm bolts on top and unscrew the bulb from the backside.
If it's the same as a 96 Pontiac Grand AM GT, than you would need a 10mm socket and rachet there are three bolts on top of headlight remove these and just pull out headlight. Disconnect the wire going to the bulb you want to replace.
2002 Pontiac Grand Am headlight bulb replacement: Purchase the correct replacement headlight bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the headlight bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
Open the hood and there are screws on both sides loosen then move flaps and pull light backwards until you can get to the bulb.
Remove the headlight directly above the fog light,you can reach down easily to access the lamp