The head light aim may be out of adjustment after replacing one of the head light bulbs, This can be caused by the head light assembly not being correctly installed after bulb replacement.Google+
Car Problem Reports
Pontiac Grand Am Improper head light bulb installation may cause incorrect head light aim
Pontiac Grand Am Problem
Average Mileage: 95,400 mi (40,000 mi - 146,000 mi)
Visitor, 2004 Pontiac Grand Am, 96,000 mi
Driver side headlight will not set tight after bulb change and just keeps slipping out of place.
GOT THAT FIXED ALSO
same thing... and cannot get them to stay in one position
Visitor, 1990 Pontiac Grand Am
I had a headlight go out, bought a replacement bulb but 3people & myself couldn't figure how to change it. Later during an oil change I asked the guys if they wouldn't mind, but apparently they too had problems(although replaced it), cause assembly was broken, now it looks like my head light will fall out if wind blew just right(it does't tho) & improperly focused on road. How to fix this?
Visitor, 2004 Pontiac Grand Am, 75,000 mi
plastic retainer very fragile, tabs broken before removal, adjusting screws shattered when turning.
Visitor, 2004 Pontiac Grand Am
After replacing bulb the headlights on that side are aiming incorrectly - I will have to try to properly replace it.