Why don't my low beam headlights work?

I just had the same problem took it to a mechanic for electric problems. He said it was my auto headlight relay module charged me $72.00 for the the part and and $65.00 for labor. Just went out and looked in the fuse box under the hood and it was number 35 relay 34 is for my high beams. Could have fixed it myself if I came to this page. I am not a happy camper!

My low beam lights won't come on in auto or manual. All other
Lights work park lights, tail lights, switch the lights to high beam
And they work. I checked the low beam fuses they were good I
Also checked the low beam bulbs. What next?

Email me with an answer

About a week ago the headlights went out while my husband was driving and wouldn't come back on. The high beams worked but the low wouldn't come on. When he got to where he could stop and check it out he tried everything to get them to come on or at least find the problem. He tried pulling the fuses and a shaking the wiring and stuff. Then, after he was home for a little bit and checking it out at home they just came back on like nothing was wrong. Everything was okay until the night before last. I had the car running for about two minutes (I was on my way home from the grocery store that is about 2 miles away from our house) when they went out again. I don't know if it is a problem with the day/night sensor, the wiring for the lights or something else. Can you help me find/figure out what might be wrong?

Richardx4 2006 Buick CXL I was having the same troubles, eccept my auto daytime running lights went out and never came back on. First thing I did was made sure my bulbs weren't burned out. They were fine so I took a gamble. After lots of searching this site, I read somewhere that it was the relay #35 in the fuse pannel under the hood. I went to the part store and they looked it up with the info I gave them and the relay in hand they ordered me a new one. Two days later, problem is solved.

Richardx4's answer worked like charm. The relay is a little pricey. The dealer was the only one locally that had the part. $47.00.

I have 2006 Buick LaCrosse - while driving the headlights will go off. Scary at night. I checked the light ****s, ok, nothing could make the lights come back on. I turned the car off and back on, still no lights. I switched on high beams and they work. Switched the highs off, no low beams, dark. Had side lights and tail lights just no low beam lights. Had to drive with high beams on, made alot of people mad, lol. Took to dealer, and of course, the lights were normal. They kept my car for 3 weeks, I told them to please drive it at night, take it home, whatever it takes. Still they couldnt get it to do the problem. Now the lights are going on and off more frequently and cant seem to get to dealer when they are off. They cant seem to find what the problem is. I NEED HELP, its really scary at night. The dealer said they changed the wiring harness but it didnt take care of the problem. What can I do? What can they change to make it work?

Did you find out what was causing your problem? My la crosse is doingthe same thing

My car had this same issue. It cost me $300 to get it fixed. It was some relay that had gone bad. I had to drive home with my high beams on; I made a lot of people angry!

I know what the problem is. Thank you GM. After researching I found it to be the headlight relay. But it's not called headlight relay. Under the hood is a relay Box. In their is a relay called HDSM. Thats the Relay. Dealer wants $62.00 for. Checkers wants $38.00.