Cadillac ATS 2016 Bulb Size
Bulb size chart
The 2016 Cadillac ATS uses different bulbs depending on the lighting position, trim, and headlight package, so it is important to verify fitment by location rather than assuming one bulb fits every lamp. This page helps you check the correct bulb size for each exterior and interior lighting point on the 2016 Cadillac ATS, including headlights, brake lights, turn signals, reverse lights, and cabin lamps.
If you are replacing a single burned-out bulb or planning a full lighting refresh, the bulb chart for the 2016 Cadillac ATS makes it easier to match the right part to the right socket. Because Cadillac offered this model with different lighting setups by market and body style, the exact bulb used in one ATS may differ from another, even in the same year.
For the best fit, always compare the bulb listed for your specific trim and equipment with the bulb already installed in the car. The 2016 Cadillac ATS may use halogen or HID headlight systems, and those setups do not share the same low and high beam bulb type. LED exterior lamps can also vary with factory package and region, so aftermarket conversions should be checked carefully for beam pattern, polarity, and warning messages. Before buying replacements, remove the old bulb and confirm the markings on the base whenever possible, especially for smaller interior, license plate, and marker lights.
FAQ
What bulbs does the 2016 Cadillac ATS use for the headlights?
The 2016 Cadillac ATS uses D3S bulbs for high beam and low beam on models equipped with HID headlights. Models with halogen headlights use 9012 bulbs for high beam and low beam.
Does every 2016 Cadillac ATS use the same headlight bulb?
No. Headlight bulb fitment depends on whether your ATS has HID headlights or halogen headlights. Check your existing headlight system before ordering.
What is the reverse light bulb size for the 2016 Cadillac ATS?
The back up reverse light bulb is 921.
What bulb fits the front turn signal on a 2016 Cadillac ATS?
The front turn signal light bulb is 7444NA.
What bulb is used for the parking light on this model?
The parking light bulb is 7444NA.
What bulb does the front side marker use on the 2016 Cadillac ATS?
The front side marker light bulb is 194NA.
What bulb fits the rear side marker on the 2016 Cadillac ATS?
The rear side marker light bulb is LED.
Are the brake lights and tail lights on the 2016 Cadillac ATS LED?
Yes. The brake light bulb and tail light bulb are listed as LED on this page.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb is LED.
What bulb size is used for the license plate lights?
The license plate light bulb is 2825 or 98.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light uses 194 or 7441 bulbs.
What bulbs are used for the interior door and stepwell lights?
The interior door light bulb and stepwell light bulb use 194 or 7441 bulbs.
What bulb is used for the vanity mirror light?
The vanity mirror light bulb is 7065.
Can trim level or body style change the bulb fitment on a 2016 Cadillac ATS?
Yes. Trim, lighting package, market, and body style can affect bulb fitment, so it is best to verify the exact lamp position on your vehicle before ordering.
Should I check the installed bulb before buying a replacement?
Yes. Checking the installed bulb is the safest way to confirm the correct fit, especially for LED-equipped lamps and vehicles with different factory lighting packages.