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.
Every Cadillac sts from 2005 to 2011 uses the same HID-D1S LED low beam bulb — once you confirm your year is within this range, you only need one part number.
Year Range
2005 – 2011
7 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Low Beam | HID-D1S LED(2005–2011) | 7 years | Consistent |
| High Beam | 9005 LED(2005–2011) | 7 years | Consistent |
| Fog Light | H3 LED(2005–2011) | 7 years | Consistent |
| Brake Light | LED Bulb(2008–2011) PC175 LED(2005–2007) | 7 years | Changed |
| Side Marker | 2825 LED(2005–2011) | 7 years | Consistent |
| Turn Signal Front | 3757AK LED(2005–2011) | 7 years | Consistent |
| Turn Signal Rear | LED Bulb(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 | LED Light(2005–2009) 211-2(2010–2011) | 7 years | Changed |
Common Sts Replacement Parts
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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 HID-D1S LED 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 HID-D1S LED bulb for the low beam and a 9005 LED for the high beam, and a H3 LED for the fog lights. Select your year below for the exact fitment chart.
Yes. The Cadillac Sts uses a HID-D1S LED 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.