What Size Bulbs Does a 2005 Buick LaCrosse Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 2005 Buick LaCrosse Have?
Owners of the 2005 Buick LaCrosse will find a total of 15 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H11 low beam and H9 high beam bulbs for precise light distribution. This model belongs to the early years of the LaCrosse's 2005-2019 production span.
Can You Put LED Bulbs in a 2005 Buick LaCrosse?
Upgrading to LED is one of the most effective ways to modernize your Buick's appearance and safety profile. We recommend starting your upgrade with the H11 low beams, as they see the most use. Adding a matching H9 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H11 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.
2005 Buick LaCrosse Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
| Side Marker | 194 | Buy 194 → |
| Turn Signal Front | 3157CK | Buy 3157CK → |
| Daytime Running | H11 | Buy H11 → |
| Fog Light | H11 | Buy H11 → |
| High Beam | H9 | Buy H9 → |
| Low Beam | H11 | Buy H11 → |
| Brake Light | 3157CK | Buy 3157CK → |
| Tail Light | 194 | Buy 194 → |
| License Plate | 194 | Buy 194 → |
| Parking Light | 3157CK | Buy 3157CK → |
| Turn Signal Rear | 3157CK | Buy 3157CK → |
| Reverse Light | 921 | Buy 921 → |
| Trunk Light | 912 | Buy 912 → |
| Dome Light | 168 | Buy 168 → |
| Map Light | 168 | Buy 168 → |
How do the 2005 Buick LaCrosse's bulbs compare to other years?
The 2006 model switched to a different bulb configuration.
This bulb configuration covers the 2005 model years. 2006 →
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