Home › Cadillac › CTSCadillac CTS headlight bulb size by year The low beam, high beam and fog light bulbs for every Cadillac CTS from 2003–2014. Pick your year to jump straight to it. Each answer links to the page in Cadillac’s owner’s manual it came from.
Cadillac CTS bulb sizes at a glance Where a year lists more than one bulb, it depends on trim or headlight type; see that year’s section below.
2003–2007 Cadillac CTS headlight bulbs Light Bulb Notes Low beam 9006 also sold as HB4
Halogen headlamps Two sources High beam 9005 also sold as HB3
Halogen headlamps Two sources Fog light H10 also sold as 9145
Two sources
Where this comes from (5 sources) Buy bulbs for your 2003–2007 Cadillac CTS 9006 low beam 9005 high beam H10 fog light
Recommended 9006 standard replacement
Same light as the original bulb, at the lowest price. Fits your low beam.
More 9006 options: brighter halogen, long life, LED upgrade Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Recommended 9005 standard replacement
Same light as the original bulb, at the lowest price. Fits your high beam.
More 9005 options: brighter halogen, long life, LED upgrade Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Recommended H10 standard replacement
Same light as the original bulb, at the lowest price. Fits your fog light.
More H10 options: brighter halogen, long life, LED upgrade, colored / styled Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Colored / styled Yellow and other colored bulbs are for fog and accent lights. Colored headlight bulbs are not street legal in the US.
2008–2010 Cadillac CTS headlight bulbs Light Bulb Notes Low beam H11 Halogen headlamps Two sources High beam H9 Halogen headlamps Two sources Fog light H11 Two sources
Where this comes from (3 sources) Buy bulbs for your 2008–2010 Cadillac CTS H11 low beam, fog light H9 high beam
Recommended H11 standard replacement
Same light as the original bulb, at the lowest price. Fits your low beam, fog light.
More H11 options: brighter halogen, long life, LED upgrade, colored / styled Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Colored / styled Yellow and other colored bulbs are for fog and accent lights. Colored headlight bulbs are not street legal in the US.
Recommended H9 standard replacement
Same light as the original bulb, at the lowest price. Fits your high beam.
More H9 options: brighter halogen, long life, LED upgrade Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
2011–2013 Cadillac CTS headlight bulbs Light Bulb Notes Low beam H11 Halogen headlamps Two sources High beam H9 Halogen headlamps Two sources Fog light H11 Sedan / Wagon Two sources
Where this comes from (6 sources) Buy bulbs for your 2011–2013 Cadillac CTS H11 low beam, fog light H9 high beam
Recommended H11 standard replacement
Same light as the original bulb, at the lowest price. Fits your low beam, fog light.
More H11 options: brighter halogen, long life, LED upgrade, colored / styled Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Colored / styled Yellow and other colored bulbs are for fog and accent lights. Colored headlight bulbs are not street legal in the US.
Recommended H9 standard replacement
Same light as the original bulb, at the lowest price. Fits your high beam.
More H9 options: brighter halogen, long life, LED upgrade Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
2014 Cadillac CTS headlight bulbs Light Bulb Notes Low beam H11 Halogen headlamps; Coupe / Wagon Two sources High beam H9 Halogen headlamps; Coupe / Wagon Two sources Fog light H11 Wagon Two sources
Where this comes from (2 sources) Buy bulbs for your 2014 Cadillac CTS H11 low beam, fog light H9 high beam
Recommended H11 standard replacement
Same light as the original bulb, at the lowest price. Fits your low beam, fog light.
More H11 options: brighter halogen, long life, LED upgrade, colored / styled Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Colored / styled Yellow and other colored bulbs are for fog and accent lights. Colored headlight bulbs are not street legal in the US.
Recommended H9 standard replacement
Same light as the original bulb, at the lowest price. Fits your high beam.
More H9 options: brighter halogen, long life, LED upgrade Brighter halogen Performance halogen bulbs throw more light down the road. They usually wear out sooner.
Long life Built to last longer between changes. A good pick for high-beam and fog sockets you use often.
LED upgrade Whiter light and a long service life. Check that it fits your housing; LED bulbs in halogen headlights are not DOT-approved for road use.
Always double-check the size printed on the old bulb’s base before you buy. See how we source our data . More Cadillac models .