What Size Bulbs Does a 2006 Cadillac Escalade Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$50 - $150 (HID System)
What Lighting System Does the 2006 Cadillac Escalade Have?
The 2006 Cadillac Escalade features an extensive lighting system with 13 bulb positions. It uses factory HID/Xenon technology with D1R projector headlights. The Escalade has been available from 2003 to 2019, and the 2006 model falls in the early-generation years.
Can You Put LED Bulbs in a 2006 Cadillac Escalade?
The 2006 Cadillac Escalade comes equipped with factory D1R HID/Xenon headlights. These already produce significantly more light than halogen bulbs, so upgrading is generally unnecessary. When your HID bulbs burn out, replace them with OEM-spec D1R HID bulbs to maintain the correct color temperature and beam pattern. Avoid cheap aftermarket HID bulbs as they can produce incorrect beam patterns and blind oncoming drivers. Your fog lights use a 880 LED halogen bulb, which can be upgraded to LED for a whiter color match with your HID headlights.
How to Replace Bulbs on a 2006 Cadillac Escalade
To remove the headlight bulb, disconnect the wiring harness, then twist the bulb counter-clockwise and pull it straight out of the housing. Older model years like the 2006 Escalade typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. HID headlights operate at high voltage. Always disconnect the battery before working on the headlight assembly. Never touch the HID ballast while the headlights are on, and handle the D1R capsule with gloves to avoid oil contamination. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the 880 LED fog light socket.
Full Upgrade Bundle
Upgrade All 13 Positions at Once
2006 Cadillac Escalade Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | HID-D1R LED | Buy HID-D1R LED |
High Beam | 9005 LED | Buy 9005 LED |
Fog Light | 880 LED | Buy 880 LED |
Brake Light | LED Bulb | Buy LED Bulb |
Side Marker | 194 LED | Buy 194 LED |
Turn Signal Front | 3157AK LED | Buy 3157AK LED |
Turn Signal Rear | 3157KX LED | Buy 3157KX LED |
Dome Light | 211-2 | Buy 211-2 |
License Plate | 194 | Buy 194 |
Map Light | 578 | Buy 578 |
Parking Light | 3157AK | Buy 3157AK |
Reverse Light | 3157K | Buy 3157K |
Trunk Light | 578 | Buy 578 |
Want to upgrade everything at once?
Shop Complete LED Kit for 2006 Cadillac EscaladeHow Long Do 2006 Cadillac Escalade Headlight Bulbs Last?
HID/Xenon headlights on the 2006 Cadillac Escalade typically last 2,000 to 3,000 hours, or about 4 to 6 years of regular driving. As HID bulbs age, they shift color toward pink or purple, which is a clear sign that replacement is needed. Flickering on startup also indicates a worn bulb or failing ballast. At 20 years old, the original bulbs on your Escalade are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 2006 Cadillac Escalade?
For the high beams, the 9005 is interchangeable with HB3. Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
2006 Cadillac Escalade Headlight FAQ
Did Cadillac Escalade Bulb Sizes Change Over the Years?
Over its production run from 2003 to 2019, the Cadillac Escalade has seen bulb size changes in the Low Beam, High Beam and Fog Light positions. The 2006 model uses the earlier bulb specification that was in place before the change around 2015. Always verify the exact bulb size for your specific 2006 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other Escalade Years
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Other Vehicles That Use HID-D1R LED Bulbs
These vehicles from other makes also use a HID-D1R LED low beam bulb: