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
The 2020 Cadillac XT5 uses a mix of LED exterior and interior lighting, and the exact bulb setup can vary by market, trim, and body style. This page helps you verify the bulb sizes by lighting position so you can quickly match the correct replacement for headlights, tail lights, interior lamps, and other locations on your XT5.
If you are replacing a single burned-out bulb or planning a full lighting refresh, it is important to check each position separately. On the 2020 Cadillac XT5, many exterior functions are LED assemblies, while a few serviceable positions still use specific bulb numbers, making position-by-position verification the safest way to buy the right part.
Fitment can differ depending on trim level, lighting package, and regional specifications, so always compare the bulb listed for your vehicle with the one already installed. Some XT5 models use factory LED units where the whole assembly is replaced rather than a traditional bulb, and aftermarket LED conversions may not behave the same as OEM parts. Before ordering, inspect the existing bulb, connector, and housing to confirm the match, especially if your vehicle has been modified or if you are switching between halogen-style replacements and LED upgrades.
The front turn signal bulb listed for the 2020 Cadillac XT5 is 7440A. Always confirm the installed bulb and socket style before purchasing, since lighting equipment can vary by trim or market.
The back up reverse light bulb is 921. This is one of the serviceable bulb positions on the XT5, so it is a good idea to compare the old bulb with the replacement before installation.
The front side marker light bulb is 194. If your vehicle has been converted to LED or has a different regional lighting setup, verify the actual bulb in the housing first.
The license plate light bulb is 2825. This is a common service bulb, but fitment should still be checked against the original part in case of prior modifications.
The vanity mirror light bulb is 6612F. Because interior lighting can vary with trim and package, checking the installed bulb is the best way to avoid ordering the wrong replacement.
The map light bulb is DE3021. If your XT5 has an interior lighting package or a different overhead console configuration, confirm the bulb before buying.
The headlight low beam and high beam positions are listed as LED. In many cases, that means the lighting is part of an LED assembly rather than a simple replaceable halogen bulb, so replacement may involve the entire unit.
Yes, the tail light and brake light positions are listed as LED. These are typically integrated LED functions, so the service method may be different from a standard bulb swap.
Use the bulb chart as a guide, then compare it with the bulb currently installed in your vehicle. Trim level, market, and optional lighting equipment can change the fitment, especially for exterior LED systems.
Sometimes, but not always with the same results. Aftermarket LED conversions can create fitment, warning, beam pattern, or compatibility issues, so it is best to verify the socket, size, and electrical requirements before changing from OEM equipment.
The listed interior bulbs include the glove box light, trunk or cargo area light, dome light, interior door light, vanity mirror light, and map light. These positions may use different bulb types, so each one should be checked individually.
Match the bulb by lighting position, then confirm the number on the old bulb or the socket style in the vehicle. This is especially important on the 2020 Cadillac XT5 because some lighting positions are LED assemblies while others still use replaceable bulbs.
