Question about 2007 Buick LaCrosse CXL Sedan

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I replace the headlight bulb in a 2007 buick lacrosse. Now the lights will not come on when knob is in the auto position. Everything else seems to be okay.

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Posted on Jan 02, 2017

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SOURCE: change headlight 2006 Buick LaCrosse

2006 Buick Lacrosse - The headlight (DIM) will stop working and then a day or two later start back. Took back to where it was purchased and they said they had it fixed but happened the very same day. Any ideas?

Posted on Jul 15, 2010

  • 231 Answers

SOURCE: replace headlight bulb on 2007 xc70

Get a Haynes manual for the vehicle, it will show you everything you need to know. Online or auto parts store.

Posted on Feb 07, 2010

  • 3 Answers

SOURCE: 2006 buick lacrosse how to replace headlight low

The bright light fitting is the same as the dim so take it apart fist to see how the cover screws off/on and the light comes out. Both the cover and the bulb are removed by a standard twist to the counterclockwise and replaced by a twist to the clockwise. Now to the dim light. You have to release the entire light assembly before you can remove the screw-on cover to reach the light. On the rear edge of the light unit closest to the engine is a white locking tab. Pull that tab up just to the point where it releases…pull too far and it locks again. Next, locate the other locking bracket which is a metal bracket in the center-rear of the light assembly. This bracket is held down by a screw. Remove the screw with a 10mm wrench. Lift the bracket just like you did the white bracket. You should now be able to pull (or pry) the entire light unit forward a little. Depending on the size of your hands this might be enough. If not, then you need to release the plastic bumper assembly to give you a little more space. This is done by removing two expansion locking pins, one that holds the little plastic strip down between the bright and dim lights and one that is located inside a rubber bumper on the engine side of the light unit. To remove these locking pins, pull or pry up the little tab in the center of the pin just like you were pulling a nail by the head. That should give you a little more space.

Posted on Apr 03, 2010

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SOURCE: 2007 Buick Lacrosse low beam headlights both went

The relay under the hood may have gone out. We had the same problem on our 2007 Buick LaCrosse CX. The bulbs were fine, high beams worked, all turn signals and everything except the low beams turned on. Turns out the relay had gone bad.

Posted on Sep 07, 2010

  • 2 Answers

SOURCE: HOW DO I CHANGE THE

Asuming you mean taillight/turnsignal, and not highmounted brake light:
1.open the trunk
2.Remove 4 wingnuts on trunk trim (there are two on each side)
You can do it by only removing 2 on one side, but it makes a nicer job,
3.Pull back the trunk "trim" the carpeted cardboard
4.Remove 2 wingnuts which hold the taillight assembly in place
Pull out the taillight assembly; you might want to remove (i.e. unattach or unplug) the wiring harness
5.Turn the particular bulb's socket (there's 5 back there: 2 tail, 1 back up, 1 side marker, 1 brake/turn) counterclockwise, and it removes from the assembly, holding the bulb.
6. Pull out bulb and replace.
6. Reverse steps to reassemble.

Posted on Jan 25, 2011

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How much does it cost to repair a HDM module on a 2007 Buick lacrosse


  • Subject of a RECALL so free
  • http://www.dealerrater.ca/recalls/Buick/LACROSSE/
  • 2007 Buick LaCrosse Recall Item Affected: EXTERIOR LIGHTING: HEADLIGHTS Date Announced: 08-14-2015 Description of Recall: General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate. Action Need To Fix It: GM will notify owners, and dealers will replace the HDM, free of charge. Interim notices were mailed to owners on September 2, 2015. Dealers will install a new HDM Service part as an interim repair. Owners will receive a second notice when remedy parts are available. Owners may contact Buick customer service at 1-800-521-7300 or Pontiac customer service at 1-800-762-2737. GM's number for this recall is 14291. FIND YOUR LOCAL Buick Service Centre
  • Buick Lacrosse Fires Caused by Faulty HDM Module? ' R.J ... https://rjhillconsulting.wordpress.com/2014/07/23/buick-lacrosse... 2014-07-23 · On 7/2/15 my 2009 Buick LaCross fuse box caught fire, I have since then learned that it began in the HDM module. There is a Technical Service Bulletin for ...
  • What is a Buick hdm module - Answers.com www.answers.com > ... > Pontiac > Pontiac Grand Prix > Grand Prix SE It is the headlight drive module. It is used for daytime running lights and low beam operation. It works in conjunction with the light sensor on top.

  • Buick Lacrosse Fires Caused by Faulty HDM Module? ' R.J ... https://rjhillconsulting.wordpress.com/2014/07/23/buick-lacrosse... 2014-07-23 · On 7/2/15 my 2009 Buick LaCross fuse box caught fire, I have since then learned that it began in the HDM module. There is a Technical Service Bulletin for ...
  • What is a Buick hdm module - Answers.com www.answers.com > ... > Pontiac > Pontiac Grand Prix > Grand Prix SE It is the headlight drive module. It is used for daytime running lights and low beam operation. It works in conjunction with the light sensor on top.
  • Buick LaCrosse Recalls DealerRater

    May 23, 2016 | Buick Cars & Trucks

    3 Answers

    One high beam not working 2006 Buick lacrosse


    Sampson, sounds like a bunt out bulb, which will need changed.
    If you feel comfortable doing it yourself. Basically three screws, and you have to pull one plastic fastener from the fascia (bumper) and pull the bumper back a bit, and pull the assembly out. I believe it is in the manual, not bad to do. I will post a link to tell or show you how to do it. Press the helpful button

    Headlight Change 2005 2009 Buick LaCrosse 2006 Buick LaCrosse CX 3 8L V6

    2008 Buick LaCrosse Headlight Replacement

    Thread how do replace the headlight bulb in 2005 buick lacrosse

    Headlight Bulbs

    Feb 13, 2016 | Buick Cars & Trucks

    2 Answers

    How to change lightbulb can't get headlight off, have taken out 3 screws and pin


    think all you need to do is turn the bulb counter clockwise and pull it out

    Aug 29, 2015 | 2006 Buick Lucerne

    1 Answer

    2007 lacrosse low beams out


    Headlight module ! You can get one at a buick dealer for about 40 buck. Good luck!

    Dec 20, 2012 | 2007 Buick LaCrosse CXL Sedan

    2 Answers

    Headlights won't come on my buick lacrosse 2007


    check the fuse in fuse box for the headlights....

    Nov 13, 2011 | 2006 Buick LaCrosse

    3 Answers

    2007 Buick Lacrosse low beam headlights both went out at once. Doesn't appear to be the bulb. Also checked the fuses under the hood and those both appear OK too.


    The relay under the hood may have gone out. We had the same problem on our 2007 Buick LaCrosse CX. The bulbs were fine, high beams worked, all turn signals and everything except the low beams turned on. Turns out the relay had gone bad.

    Sep 07, 2010 | 2007 Buick LaCrosse CXL Sedan

    1 Answer

    How do remove headlight assembly on 2005 Buick LaCrosse to replace lighe bulb


    I just changed the low beam bulb in a '05 Buick LaCrosse and found it really rather easy after researching it. I found no reason to remove the grill and the bumper cover, BUT you do have to remove the top 4 fastners that hold the grill assy to the radiator support, then you can work the headlight assy forward enough to work it out of the socket and turn it down so you can get to the bulb pockets on the back side. NO NEED to remove it all, just loosen it and gentley pry things forward enough to get the light assy out. ALSO> My supplier said his Wagner lighting book called for a 9006 bulb, but the car I worked took a H11. About 4x the money over a plain ol 9006 bulb but it might save someone picking up the wrong bulb. I hope this helps someone else out....Best of luck to you all

    Sep 07, 2010 | 2005 Buick LaCrosse

    1 Answer

    Dim headlights on 2006 buick lacrosse


    check the earth wire first,wattage on the bulbs in case their wrong or old type bulbs ,check supply voltage ,if all ok then fit aux spot lights .if still having a problem have eyes checked as over 40 the old peepers can deteriorate ,dont know the name of it but it can affect some people at a younger age than others,glasses will not correct this problem.

    Feb 13, 2009 | 2006 Buick LaCrosse

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