When i go down the road with mt 2006 pontiac grand prix at night the low beam go out for a while and the high beams still work . after a while the lowbeam com back on

New relay is bad.

The Grand Prix uses separate bulbs for low beams and high beams. The low beams are located on the outer edge of the headlight assemblies while the high beams are located on the inner edge of the assemblies. With this in mind, locate the position of the burned out bulb prior to replacing it.

Things You

mdsarnes, The first thing that I would check is the fuse for the low beams located in the engine compartment power distribution box. (Fuse box) GM does have a legend written right on the cover so you know which fuse to check. Also, when the low beams are on try and wiggle the connectors to each bulb. If these dont work, replace one bulb and see if it works. If it does then take the same bulb and try it on the other side. If you have a test light then you can test for power at the plugs before you purchase any bulbs. Good luck with this.

Common problem, there is a headlight relay in the power distribution center under the hood that needs changed out.

my friend ! is both beam wont work on low? if yes then check fues other wise some time its burn .so check it throlly ur car beams ....some time lights assambly have problem .so check that as well.
hope u ll get the soloution ....tc

I'm having the same issue. I have changed the bulbs and fuses. I can't find a relay but I don't think that is the issue. Some other people have suggest the Dimmer Control Switch. I am working on that. Please let me know what you find out.

A loose ground wire to the headlight will keep it dim,Or a headlight adjustment will bring the headlight up.If you can have your headlight turned on a garage door or something at night,and then watch as you change your headlights from low beam to high beam which ones are higher.the last thing to verify is that your high beam headlights are not the plastic lens type that turn dull which cuts the light power.

Either the low beam head light bulbs have went out,or the dimmer switch has gone out.

If they work at night leave it alone
(Those ******* "Driving Lights" cost you gasoline to run.)

1999 GRAN PRIX SE HOW DO I INSTALL HEAD LIGHT BULB