7 Years Available
Cadillac Sts Light Bulb Sizes
Complete bulb size reference for the Cadillac Sts from 2005 to 2011. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
Our database lists the same D1S low beam bulb for Cadillac sts entries from 2005 to 2011. Confirm your trim and factory lighting package before buying.
Year Range
2005 – 2011
7 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Low Beam | D1S(2005–2011) | 7 years | Consistent |
| High Beam | 9005(2005–2011) | 7 years | Consistent |
| Fog Light | H3(2005–2011) | 7 years | Consistent |
| Side Marker | 2825(2005–2011) | 7 years | Consistent |
| Turn Signal Front | 3757AK(2005–2011) | 7 years | Consistent |
| Dome Light | 212-2(2005–2009) PC175(2010–2011) | 7 years | Changed |
| License Plate | 2825(2005–2011) | 7 years | Consistent |
| Map Light | PC175(2005–2011) | 7 years | Consistent |
| Parking Light | 3757AK(2005–2011) | 7 years | Consistent |
| Reverse Light | 3157KX(2005–2011) | 7 years | Consistent |
| Trunk Light | 211-2(2010–2011) | 2 years | Consistent |
| Daytime Running | 3157CK(2007–2009) 3757NA(2005–2006) | 5 years | Changed |
| Brake Light | PC175(2005–2007) | 3 years | Consistent |
Common Sts Replacement Parts
Select Your Year
More from Cadillac
Frequently Asked Questions
We have bulb size data for the Cadillac Sts from 2005 to 2011, covering 7 model years. Select your year below for a complete position-by-position bulb chart.
No, the Cadillac Sts has used the D1S low beam bulb consistently across all 7 model years in our database. Any year in the 2005–2011 range uses the same bulb.
The Cadillac Sts uses a D1S bulb for the low beam and a 9005 for the high beam, and a H3 for the fog lights. Select your year below for the exact fitment chart.
Yes. The Cadillac Sts uses a D1S 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.