7 Years Available
Cadillac Ats Light Bulb Sizes
Complete bulb size reference for the Cadillac Ats from 2013 to 2019. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Cadillac ats changed low beam specifications across model years — 2014–2019: D3S; 2013: 9012. Make sure to select your exact year below to get the right bulb size.
Year Range
2013 – 2019
7 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Low Beam | D3S(2014–2019) 9012(2013–2013) | 7 years | Changed |
| High Beam | D3S(2014–2019) | 6 years | Consistent |
| Turn Signal Front | 7444NA(2016–2019) 7440NA(2013–2013) | 5 years | Changed |
| License Plate | 2825(2014–2019) W5W(2013–2013) | 7 years | Changed |
| Parking Light | 7444NA(2016–2019) W5W(2013–2013) | 5 years | Changed |
| Reverse Light | 921(2013–2019) | 7 years | Consistent |
| Trunk Light | 175(2014–2019) | 6 years | Consistent |
| Side Marker | 194(2013–2019) | 7 years | Consistent |
Common Ats Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Cadillac Ats from 2013 to 2019, covering 7 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Cadillac Ats changed low beam bulb specifications across generations: 2014–2019: D3S; 2013–2013: 9012. Make sure to check your exact year using the list below.
The Cadillac Ats uses a D3S bulb for the low beam (same bulb serves both high and low beam via dual filament). Select your year below for the exact fitment chart.
Yes. The Cadillac Ats uses a D3S low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.