Cadillac SRX 2007 Bulb Size
Bulb size chart
If you need bulb size information for a 2007 Cadillac SRX, this page is designed to help you verify the correct bulb by lighting position. Instead of guessing from the owner’s manual or comparing parts at the store, you can match each exterior and interior lamp location to the bulb type listed for this model year.
The 2007 Cadillac SRX uses different bulbs depending on where the light is located, and some positions may vary by trim, market, or lighting package. That is why it is important to check the headlight, brake light, tail light, turn signal, and interior lamp positions separately before ordering replacements.
Fitment can change with trim level, body style, and whether the vehicle has halogen or HID headlights, so always confirm the installed bulb before buying. For example, the low beam bulb is D1S on SRX models with HID headlights, while halogen-equipped vehicles use 9006XS low beams. Some owners also choose aftermarket LED conversions for brighter output, but those upgrades may require additional parts or may not match the original beam pattern. If you are replacing multiple bulbs, compare the old bulb number, connector style, and physical shape to the listing before purchase to avoid returns and mismatches.
FAQ
What bulbs does a 2007 Cadillac SRX use for the low beam headlights?
The low beam bulb depends on the headlight package. 2007 Cadillac SRX models with HID headlights use D1S low beam bulbs, while models with halogen headlights use 9006XS low beam bulbs.
What is the high beam bulb for the 2007 Cadillac SRX?
The high beam bulb is 9005XS.
What bulb is used for the front turn signal on a 2007 Cadillac SRX?
The front turn signal light bulb is 3757A.
What bulb is used for the rear turn signal on this model?
The rear turn signal light bulb is listed as LED on this page, so the exact replacement should match the LED setup used in that position.
What bulb fits the brake lights and tail lights?
Both the brake light bulb and tail light bulb are listed as LED on this page. Because they are LED positions, it is best to verify the original assembly before replacing individual parts.
What bulb is used for the license plate lights?
The license plate light bulb is 2825 or 98.
What bulb fits the front side marker lights?
The front side marker light bulb is 2825 or 98.
What are the parking light bulb options for the 2007 Cadillac SRX?
Two parking light listings appear on this page: 2825 or 98 for one configuration, and 3757A for the other. Use the installed bulb and lighting setup to confirm which one applies to your SRX.
What bulb is used for the back up reverse light?
The back up reverse light bulb is 3157.
What interior bulbs are listed for the cabin and cargo area?
The dome light bulb is 578, the interior door light bulb is 906, the courtesy light bulb is 906, the map light bulb is 2886X, the vanity mirror light bulb is 7065, and the trunk or cargo area light is 211-2.
Can trim or market differences change the bulb size on a 2007 Cadillac SRX?
Yes. Trim, lighting package, market, and body style can affect bulb fitment, especially for headlights and some exterior lamps. Always verify the bulb in your specific vehicle.
Should I check the old bulb before ordering a replacement?
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if the vehicle has been modified, converted to LED, or repaired with non-original parts.
Can I switch the original bulbs to LED replacements?
In many positions, yes, but aftermarket LED conversions may need compatible housings, resistors, or adapters. They can also change brightness and beam pattern, so confirm compatibility before upgrading.