15 Years Available
Buick Lacrosse Light Bulb Sizes
Complete bulb size reference for the Buick Lacrosse from 2005 to 2019. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Buick lacrosse changed low beam specifications across model years — 2014–2019: D3S; 2005–2009: H11; 2010–2013: D1S. Make sure to select your exact year below to get the right bulb size.
Year Range
2005 – 2019
15 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Low Beam | D3S(2014–2019) H11(2005–2009) D1S(2010–2013) | 14 years | Changed |
| High Beam | D3S(2014–2019) H11(2005–2009) D1S(2010–2013) | 14 years | Changed |
| Fog Light | H11(2005–2019) | 15 years | Consistent |
| Turn Signal Rear | 3757NA(2010–2013) 3057(2006–2009) 7440(2017–2019) 7440NA(2014–2016) 3157CK(2005–2005) | 15 years | Changed |
| License Plate | 2825(2010–2019) 194(2005–2009) W5W(2017–2017) | 15 years | Changed |
| Reverse Light | 921(2005–2019) 921K(2014–2016) | 15 years | Changed |
| Trunk Light | 175(2010–2019) 912(2005–2009) | 11 years | Changed |
| Brake Light | 3157CK(2005–2009) 7440(2017–2019) 3057(2006–2006) | 8 years | Changed |
| Turn Signal Front | 3757NA(2010–2013) 4157NA(2006–2009) 7444NA(2014–2016) 3157CK(2005–2005) | 12 years | Changed |
| Map Light | 168(2005–2009) 2825(2014–2016) | 8 years | Changed |
| Parking Light | 3757NA(2010–2013) 4157NA(2006–2009) 7444NA(2014–2016) 3157CK(2005–2005) | 12 years | Changed |
| Side Marker | 194(2005–2009) 3157CK(2010–2013) 7443(2015–2016) 7443CK(2014–2014) 3757NA(2011–2011) | 12 years | Changed |
| Daytime Running | H11(2005–2013) 7443(2015–2016) 3157(2010–2011) 7443CK(2014–2014) | 12 years | Changed |
| Door Light | W5W(2010–2016) | 7 years | Consistent |
| Dome Light | 168(2005–2009) 2825(2010–2013) | 9 years | Changed |
| Tail Light | 194(2005–2009) 3057(2006–2006) | 5 years | Changed |
Common Lacrosse Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Buick Lacrosse from 2005 to 2019, covering 15 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Buick Lacrosse changed low beam bulb specifications across generations: 2014–2019: D3S; 2005–2009: H11; 2010–2013: D1S. Make sure to check your exact year using the list below.
The Buick Lacrosse uses a D3S bulb for the low beam (same bulb serves both high and low beam via dual filament), and a H11 for the fog lights. Select your year below for the exact fitment chart.
Yes. The Buick Lacrosse uses a D3S low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.