Fitment Guaranteed for 2015 Cadillac ATS

2015 Cadillac ATS Bulb Sizes

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Full Bulb Size Chart

PositionBulb SizeShop
Low Beam
HID-D3S LEDCheck Price on Amazon
High Beam
HID-D3S LEDCheck Price on Amazon
Fog Light
LED Fog LightCheck Price on Amazon
Brake Light
LED BulbCheck Price on Amazon
Side Marker
LED BulbCheck Price on Amazon
Turn Signal Front
7444NA LED or 7440NACheck Price on Amazon
Turn Signal Rear
LED BulbCheck Price on Amazon
License Plate
2825Check Price on Amazon
Parking Light
2825 or 7444NACheck Price on Amazon
Reverse Light
921Check Price on Amazon
Trunk Light
175Check Price on Amazon

Installation Guide

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Frequently Asked Questions

The 2015 Cadillac ATS uses a HID-D3S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

The high beam bulb size for the 2015 Cadillac ATS is HID-D3S LED.

Yes, the 2015 Cadillac ATS takes a LED Fog Light bulb for the fog light position.

Other ATS Years

20192018201720162014
Disclaimer

Bulb sizes can vary by trim level. Always check your owner's manual or remove the existing bulb to verify the size before purchasing. We may earn a commission from links on this page.