Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Front
Used for: Map Light Bulb
Used for: Vanity Mirror Light Bulb
This page covers the 2021 Cadillac XT5 and helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Because exterior and interior lamps can vary by trim, market, and lighting package, it is best to confirm the exact location on the vehicle and compare it with the chart on this page.
For the 2021 XT5, many of the exterior and interior lights use LED assemblies rather than replaceable traditional bulbs. That means some positions are serviced as complete LED units, while others still use specific bulb types such as the back up reverse light, front side marker, front turn signal, license plate light, vanity mirror light, and map light. Use the position-based listings here to narrow down the right fit quickly.
Before ordering, check your XT5’s trim level, equipment package, and body style, since Cadillac lighting specifications can differ by market and option content. Some vehicles may have factory LED headlamps or other LED-based lamps that are not simple bulb swaps, while aftermarket conversions can change the bulb type or connector style. If you are replacing a serviceable bulb, it is smart to remove the installed bulb first and compare the base, shape, and wattage markings before purchase, especially for positions like the 921 reverse light, 194 front side marker, 7440A front turn signal, 2825 license plate light, 6612F vanity mirror light, and DE3021 map light.
The listed back up reverse light bulb for the 2021 Cadillac XT5 is 921.
The front side marker light bulb is listed as 194 for the 2021 Cadillac XT5.
The front turn signal light bulb is listed as 7440A on the 2021 Cadillac XT5.
The license plate light bulb listed for the 2021 Cadillac XT5 is 2825.
The vanity mirror light bulb is listed as 6612F for the 2021 Cadillac XT5.
The map light bulb is listed as DE3021 for the 2021 Cadillac XT5.
The chart shows the low beam, high beam, fog light, and daytime running light as LED on this vehicle, which often means those lamps are part of an LED assembly rather than a simple bulb-only replacement.
On this page, both the brake light and tail light are listed as LED for the 2021 Cadillac XT5, so they should be checked by position rather than assumed to use a standard replaceable bulb.
Yes. Trim and lighting package can vary by market and body style, so the exact bulb or LED assembly may differ from one XT5 to another.
Use the lighting position on the vehicle, compare it with the chart, and if possible remove the installed bulb to verify the base type and printed part number before ordering.
Not always. Some positions may accept aftermarket LED replacements, but others are integrated LED units or require a specific connector, polarity, or fitment check.
The chart includes LED listings for the glove box light, trunk or cargo area light, dome light, and interior door light, plus DE3021 map lights and 6612F vanity mirror lights.
