Cadillac XLR 2005 Bulb Size
Bulb size chart
This 2005 Cadillac XLR bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right lamp without guessing. Whether you are changing exterior signal bulbs, interior courtesy lights, or the HID headlight bulbs, this page is organized to make fitment checks faster and easier.
The 2005 Cadillac XLR uses a mix of LED, halogen-style, and HID lighting depending on the location. Because the car can vary by trim, market, and lighting package, matching the bulb to the exact position is the safest way to confirm the correct replacement before you buy.
For the best fitment results, compare the bulb listed for each position with the bulb already installed in your XLR, especially if the car has been modified or if you are unsure about a previous replacement. Some lighting points may differ by trim or package, and aftermarket LED conversions can change bulb type, connector style, or error behavior. The 2005 Cadillac XLR uses D1S for the high and low beam headlight bulbs, while several exterior positions are listed as LED or specific halogen-style sizes such as 3757A, 3156, 2825/98, 561, 212-2, 9045, and PC168. Checking the installed bulb before ordering is the easiest way to avoid returns and make sure the new bulb matches both the socket and the lighting output you want.
FAQ
What bulb size does the 2005 Cadillac XLR use for the low beam and high beam headlights?
The 2005 Cadillac XLR uses D1S bulbs for both the high beam and low beam headlight positions.
What is the rear brake light bulb type on a 2005 Cadillac XLR?
The rear brake light bulb is listed as LED for the 2005 Cadillac XLR.
What bulb fits the tail lights on this model year?
The tail light bulb is listed as LED on the 2005 Cadillac XLR.
What size is the front turn signal bulb on a 2005 Cadillac XLR?
The front turn signal light bulb size is 3757A.
What bulb is used for the daytime running lights?
The daytime running light bulb is 3757A on the 2005 Cadillac XLR.
What is the rear turn signal bulb size?
The rear turn signal light bulb is listed as LED for the 2005 Cadillac XLR.
What bulb fits the license plate lights?
The license plate light bulb size is 2825 or 98.
What bulb is used for the parking lights and front side marker lights?
The parking light bulb and the front side marker light bulb are both listed as 2825 or 98.
What is the reverse light bulb size?
The back up reverse light bulb size is 3156.
What bulb fits the fog lights on the 2005 Cadillac XLR?
The front fog light bulb size is 9045.
What bulb is used for the glove box and stepwell lights?
The glove box light bulb and stepwell light bulb are listed as 194 or 7441.
What bulb size fits the interior door and courtesy lights?
The interior door light bulb is 561, and the courtesy light is also listed as 561 for one option. Another courtesy light option is 212-2, so it is important to confirm the installed bulb before ordering.
What bulb fits the map lights?
The map light bulb size is 212-2.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is PC168, if your XLR is equipped with that lamp.
Why should I check the installed bulb before buying replacements?
Because trim, lighting package, and prior aftermarket changes can affect fitment, checking the installed bulb helps confirm the correct size and connector before purchase.