Cadillac CTS-V 2019 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2019 Cadillac CTS-V by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, a cabin light, or a small exterior lamp, checking the bulb location first is the easiest way to avoid ordering the wrong part.
The 2019 Cadillac CTS-V uses different bulb types depending on where the light is installed. On this page, the bulb chart is organized by position, including headlight, reverse, license plate, interior, and cargo-area lighting, making it simpler to confirm the right fit for your vehicle.
Fitment can vary by trim, lighting package, market, and body style, so it is smart to compare the bulb in your car with the listing before purchasing. Some positions may use halogen-style bulbs while others may be part of an LED or HID system, and aftermarket conversions can change what fits or what works correctly. If possible, check the installed bulb number on the old bulb or remove the lamp and inspect the socket before ordering, especially for interior and small exterior lights where similar-looking bulbs can be easy to confuse.
FAQ
What bulb does the 2019 Cadillac CTS-V use for the low beam and high beam headlights?
The listed headlight bulb for both high beam and low beam on the 2019 Cadillac CTS-V is D3S.
What is the reverse light bulb size for the 2019 Cadillac CTS-V?
The back up reverse light bulb size listed for this model is 921.
What bulb fits the license plate light on a 2019 Cadillac CTS-V?
The license plate light bulb size listed is 2825.
What bulb is used for the dome light in the 2019 Cadillac CTS-V?
The dome light bulb size listed for this vehicle is 2825.
What bulb fits the glove box light on this Cadillac?
The glove box light bulb size listed is 906.
What bulb is used in the interior door light?
The interior door light bulb size listed is 906.
What bulb fits the stepwell light on the 2019 CTS-V?
The stepwell light bulb size listed is 2886X.
What bulb is used for the vanity mirror light?
The vanity mirror light bulb size listed is 6612F.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light bulb size listed is 211-2.
What bulb is used for the map light?
The map light bulb size listed is PC175.
Are all 2019 Cadillac CTS-Vs guaranteed to use the same bulb sizes?
Not always. Trim, lighting package, market, and body style can affect bulb fitment, so it is best to confirm the bulb position on your specific vehicle.
Can I replace these bulbs with LED upgrades?
In some positions, yes, but LED conversions may require the correct polarity, fitment, and sometimes additional compatibility checks. Make sure the replacement matches the socket and works properly in the housing.
Should I trust the bulb number on the old bulb or the vehicle listing?
Both are useful, but checking the installed bulb is often the best final confirmation. The old bulb number can help verify the correct replacement before you buy.
Why does the page list bulb sizes by lighting position instead of one full-car bulb number?
Because the 2019 Cadillac CTS-V uses different bulbs in different locations. Listing them by position makes it easier to find the exact bulb you need for each lamp.