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Buick LaCrosse Headlight Bulbs Replacement Guide
How to change a burnt out low beam, high beam or front turn signal light bulb in 2nd generation 2010 to 2016 LaCrosse.

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2016 LaCrosse Headlight
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Low / High Beam & Turn Signal
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Round Black Plastic Cap

This automotive maintenance tutorial was specifically written to assist owners of the second generation (2010, 2011, 2012, 2013, 2014, 2015 & 2016) GM Buick LaCrosse sedan in changing a burnt out low / high beam headlight bulb or the front turn signal light bulb.

Owners of other General Motors vehicles such as the Chevrolet Impala, Monte Carlo, Malibu, Spark, Sonic, Cruze, Volt, SS, Camaro, Caprice, Corvette, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado, Buick Verano, Regal, Cascada, Encore, Enclave, Envision, GMC Canyon, Sierra, Terrain, Acadia, Yukon, Savana, Cadillac CT6, ATS-V, ATS, ELR, CTS, XTS, XT5, SRX, Escalade and Holden Commodore may also find these DIY instructions to be helpful.

No tools are needed to replace any of the headlight bulbs on either the driver or passenger side of the vehicle.


The replacement light bulb part numbers for the 2010, 2011, 2012 and 2013 model years are as follows: Low Beam # H11, High Beam # H9 and Front Turn Signal # 3757A.

Replacement bulbs for the 2014, 2015 & 2016 LaCrosse are: Low / High Beam # 9012 and Front Turn Signal # 7444NA.

Please check your old light bulbs or use the Amazon Part Finder website before purchasing new bulbs.

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Twist Off Counterclockwise
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Dust Cover Removed
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1/4 Turn Counterclockwise
The first two steps are to open the hood and then move to the side of the car with the burnt out light bulb.

To access the bulbs on the driver side of the vehicle, you may need to disconnect the windshield washer fluid filler tube. See the pictures near the bottom of the page.

On the 2014, 2015 & 2016 LaCrosse, the headlight is a dual filament combination low and high beam bulb.

Rotate the round black plastic dust cover 1/4 turn counterclockwise before pulling it straight out.

Set the dust cap aside in a safe place.

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Remove Old Light Bulb
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Gently Pull Back Clip
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Old # 9012 Low / High
Rotate the base of the old bulb 1/4 turn counterclockwise before pulling it straight out of the headlight housing.

Gently pull back the plastic retaining clip on the electrical connector before sliding the power plug straight off the base of the old light bulb.

(The 2010, 2011, 2012 & 2013 LaCrosse headlight bulb part numbers are Low Beam # H11 and High Beam # H9.)

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Empty Bulb Socket
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Push On Power Plug
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1/4 Turn Clockwise - Lock
Try to avoid touching the glass part of the new halogen bulb with your fingers or anything greasy in the engine bay.

If you do get the new bulb dirty, wipe it clean with a paper towel and some rubbing alcohol.

Push the power plug straight on to the base of the new 9012 bulb (2014, 2015 & 2016 model years) until it clicks securely in to place.

Insert the headlight bulb in to the housing and rotate it 1/4 turn clockwise to secure it in place.

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Line Up Dust Cap
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1/4 Turn Clockwise
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Front Turn Signal Socket
Replace the round black plastic dust cover by turning it 1/4 turn clockwise.

The front turn signal light bulb socket is attached to a long grey plastic handle for easy removal.



 

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1/4 Turn Counterclockwise
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Turn Signal Bulb Socket
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Pull Out Old Light Bulb
Rotate the gray plastic tab 1/4 turn counterclockwise before pulling the turn signal light bulb socket straight out of the housing.

Pull the old turn signal light bulb straight out of the socket and push in a new # 7444NA bulb.

(The 2010, 2011, 2012 & 2013 LaCrosse models use a # 3757A turn signal light bulb.)

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Push In New 7444NA Bulb
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Empty Bulb Housing
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1/4 Turn Clockwise - Lock
Re-insert the bulb socket in to the housing and rotate it 1/4 turn clockwise to secure it in place.
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Test New Headlight Bulbs
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Driver Side Headlight
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Windshield Washer Tube
Test the new light bulbs by turning on the headlights, activating the hazard signals and flashing the high beams.

 

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Pull Out Filler Tube
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Easier Access Headlight
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Replace Driver Side Bulbs
If you need to replace a bulb in the driver side headlight housing, pull the windshield washer fluid fill tube straight out of the engine bay to make it easier to access the bulbs.

For more, check out my other 2010-2016 Buick LaCrosse DIY Repair & Maintenance Guides.
 

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