Bulb size & fitment reference

Cadillac DTS
Bulb Size Guide

Get the bulb-size answer first, then check factory-system differences and position-specific notes before buying.

Select Your Vehicle

Quick Answer for 2011 Cadillac DTS

Start with the positions you’re most likely to replace. Full fitment details are below.

Headlight High & Low Beam

Cornering Light

Courtesy Light

211-2 / 578 / 41MM

Shop this position →

Daytime Running Light

Full Bulb Fitment by Lighting Position

Find the bulb size for each lighting position and check any fitment notes before ordering.

Cadillac DTS (2009–2011) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD1SShop position →
Fog Light9145 / H10Shop position →
Daytime Running Light3157 / 3156Shop position →
Cornering Light3157 / 3156Shop position →
Front Turn Signal3157 / 3156Shop position →
Parking LightT10 / 194 / 168Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Courtesy Light211-2 / 578 / 41MMShop position →
Glove Box LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk Light211-2 / 578 / 41MMShop position →
Engine Compartment Light211-2 / 578 / 41MMShop position →
View Fitment Options →

Cadillac DTS (2006–2008) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD1SShop position →
Fog Light9145 / H10Shop position →
Daytime Running Light3157 / 3156Shop position →
Cornering Light3157 / 3156Shop position →
Front Turn Signal3157 / 3156Shop position →
Parking LightT10 / 194 / 168Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Glove Box LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk Light211-2 / 578 / 41MMShop position →
Engine Compartment Light211-2 / 578 / 41MMShop position →
View Fitment Options →
Fitment Reminder
Bulb size can vary by factory setup. If you're unsure which option applies to your vehicle, confirm your current bulb or select your configuration on the product page.