Cadillac ATS 2014 Bulb Size
Bulb size chart
Looking for bulb sizes for your 2014 Cadillac ATS? This page is designed to help you verify the correct bulbs by lighting position, so you can match the right replacement to the right socket before you buy. Because the ATS could be equipped with different lighting setups, it is important to confirm the exact bulb type for your trim, package, and body style.
The 2014 Cadillac ATS uses a mix of LED and replaceable bulb applications depending on the lamp location. Common fitments include LED rear lighting, D3S for HID headlight systems, and 9012 for halogen headlight systems. Use the bulb chart on this page as a position-by-position reference for exterior, interior, and cargo-area lighting.
Fitment can vary by market and by equipment package, so always compare the bulb listed for your specific ATS with the bulb already installed in the vehicle. This is especially important for headlight systems, since some 2014 ATS models use HID headlights with D3S bulbs while others use halogen headlights with 9012 bulbs. LED replacements and aftermarket conversion kits can also change the final result, so check whether the bulb is a direct replacement or part of a larger retrofit. Before ordering, remove the old bulb and verify the base, connector, and physical size to avoid returns and installation issues.
FAQ
What bulb does the 2014 Cadillac ATS use for HID low and high beam headlights?
For 2014 Cadillac ATS models equipped with HID headlights, the headlight bulb listed for both high beam and low beam is D3S.
What bulb does the 2014 Cadillac ATS use for halogen headlights?
For 2014 Cadillac ATS models equipped with halogen headlights, the headlight bulb listed for both high beam and low beam is 9012.
Are the rear brake lights on the 2014 Cadillac ATS replaceable bulbs?
The rear brake light bulb is listed as LED on this page, so it is not shown as a standard replaceable halogen bulb.
What is the tail light bulb type for the 2014 Cadillac ATS?
The tail light bulb is listed as LED for this model year.
What bulb is used for the rear turn signal on a 2014 Cadillac ATS?
The rear turn signal light bulb is listed as LED.
What bulb fits the rear back up reverse light on the 2014 Cadillac ATS?
The back up reverse light bulb is 921.
What bulb size is used for the front turn signal and parking light on the 2014 Cadillac ATS?
Both the front turn signal light and the parking light are listed as 7444NA.
What bulb fits the front side marker light on the 2014 Cadillac ATS?
The front side marker light bulb is 194NA.
What bulb fits the rear side marker light on the 2014 Cadillac ATS?
The rear side marker light bulb is listed as LED.
What bulb is used for the license plate lights on the 2014 Cadillac ATS?
The license plate light bulb is listed as 2825 or 98.
What bulb fits the trunk or cargo area light on the 2014 Cadillac ATS?
The trunk or cargo area light uses 194 or 7441.
What bulb fits the interior door light and stepwell light on the 2014 Cadillac ATS?
Both the interior door light and the stepwell light are listed as 194 or 7441.
Does the 2014 Cadillac ATS use the same bulb in every trim?
Not always. Trim level, lighting package, market, and body style can change the bulb setup, especially for exterior lighting and headlight systems.
Should I check the old bulb before buying a replacement for my 2014 Cadillac ATS?
Yes. Checking the installed bulb is the best way to confirm fitment, especially when the catalog lists more than one possible bulb or when the vehicle has optional lighting equipment.