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Used for: Fog Light Bulb Front, Daytime Running Light Bulb
Used for: Fog Light Bulb Front, Daytime Running Light Bulb
Used for: Headlight Bulb High Beam
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb Outer
Used for: License Plate Light Bulb, Tail Light Bulb Inner, Courtesy Light Bulb, Glove Box Light Bulb
Used for: License Plate Light Bulb, Tail Light Bulb Inner, Courtesy Light Bulb, Glove Box Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Dome Light Bulb, Map Light Bulb
Used for: Dome Light Bulb, Map Light Bulb
Used for: Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
This page covers the 2005 Buick LaCrosse and helps you verify the correct bulb size by lighting position, so you can match the right lamp to the right socket before you buy. Because bulb fitment can change with trim, market, and body style, it is best to confirm each location separately instead of assuming every light uses the same part.
Use the bulb chart on this 2005 Buick LaCrosse page to check common exterior and interior lights such as the low beam, high beam, fog light, brake light, turn signal, reverse light, dome light, map light, and license plate light. That makes it easier to replace a burned-out bulb quickly and avoid ordering the wrong size.
For the best fit, compare the chart with your specific LaCrosse trim and lighting package, since some positions may differ by market or equipment level. If you are switching from halogen to LED, remember that the bulb may fit physically but still need a compatible LED replacement, and some aftermarket conversions can affect beam pattern, brightness, or warning messages. Before placing an order, it is smart to remove the installed bulb and read the number on the base, especially for exterior lamps where previous repairs or regional differences may have changed the original setup.
The low beam headlight bulb listed for the 2005 Buick LaCrosse is H11.
The high beam headlight bulb for the 2005 Buick LaCrosse is H9.
Both the front turn signal light and the front parking light use 4157NA on this page.
The brake light bulb listed is 3057R.
The outer tail light bulb is 3057R.
The rear turn signal light bulb is 3057.
The back up reverse light bulb is listed as 921.
Both the dome light and map light use 168 or 917.
The license plate light bulb is 194 or 7441.
The glove box light and courtesy light both use 194 or 7441.
The trunk or cargo area light uses 912.
The vanity mirror light bulb is 7065.
The front fog light and daytime running light are listed as H11 LED or H16 LED, depending on the vehicle setup.
Yes. Trim, lighting package, market, and body style can affect bulb fitment, so it is important to check the exact position on your vehicle.
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if the car has been repaired, modified, or converted to LED.