Cadillac CTS 2016 Bulb Size
Bulb size chart
This 2016 Cadillac CTS bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right lamp the first time. Whether you are changing an exterior bulb or a cabin light, the chart is organized to make it easier to match each location with the proper fitment.
The 2016 Cadillac CTS uses a mix of LED lighting and replaceable bulb types depending on the position, trim, and market. Use this page to compare the bulb chart by headlight, tail light, brake light, turn signal, parking, reverse, and interior locations before buying replacements.
Fitment can vary on the 2016 Cadillac CTS based on trim level, lighting package, body style, and regional equipment, so it is smart to confirm what is actually installed on your car before ordering. Some exterior functions use LED assemblies, while others use serviceable bulbs, and aftermarket LED conversions may require extra attention to polarity, beam pattern, or error-free compatibility. If your CTS has been modified or if you are unsure about a specific lamp, check the existing bulb, housing label, or owner information before purchase to avoid ordering the wrong part.
FAQ
What bulb does the 2016 Cadillac CTS use for the low beam and high beam headlights?
The chart lists the headlight bulb for both high beam and low beam as D3S on the 2016 Cadillac CTS.
Are the brake lights on the 2016 Cadillac CTS replaceable bulbs?
The brake light bulb is listed as LED, which usually means the light is part of an LED assembly rather than a standard replaceable bulb.
What is the reverse light bulb size for a 2016 Cadillac CTS?
The back up reverse light bulb is listed as 921.
What bulb size is used for the license plate lights?
The license plate light bulb is listed as 2825, 98.
What are the dome light bulb options for this model year?
The dome light bulb is listed as 2825, 98.
What bulb fits the glove box light on a 2016 Cadillac CTS?
The glove box light bulb is listed as 906.
What bulb is used for the interior door light?
The interior door light bulb is listed as 906.
What is the stepwell light bulb size?
The stepwell light bulb is listed as 2886X.
What bulb fits the vanity mirror light?
The vanity mirror light bulb is listed as 6612F.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is listed as 211-2.
What is the map light bulb size for the 2016 Cadillac CTS?
The map light bulb is listed as PC175, and it is marked optional in the bulb chart.
Do all 2016 Cadillac CTS trims use the same bulb sizes?
Not always. Trim and lighting package can vary by market and body style, so some bulb positions may differ even within the same model year.
Are the front and rear turn signal bulbs the same on this car?
The chart lists both front and rear turn signal light bulbs as LED, but the exact service method can vary by housing and package.
Should I check the installed bulb before buying replacements?
Yes. Checking the installed bulb is the safest way to confirm fitment, especially on a vehicle with mixed LED and bulb-based lighting.