Bulb size & fitment reference

Cadillac XTS
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 2024 Cadillac XTS

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

Reverse Light

Dome Light

T10 / 194 / 168

Shop this position →

Front Side Marker Light

T10 / 194 / 168

Shop this position →

Front Turn Signal

Full Bulb Fitment by Lighting Position

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

Cadillac XTS (2023–2024) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Front Turn Signal7443Shop position →
Parking Light7443Shop position →
Reverse Light921Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Vanity Mirror Light31MMShop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Cadillac XTS (2019) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Reverse Light912 / 921 / T15Shop position →
License Plate LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Courtesy LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Cadillac XTS (2018) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD3SShop position →
Front Turn Signal7443Shop position →
Parking Light7443Shop position →
Reverse Light912 / 921 / T15Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Courtesy LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Cadillac XTS (2017) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD3SShop position →
Front Turn Signal7443Shop position →
Parking Light7443Shop position →
Front Parking Light7443Shop position →
Reverse Light912 / 921 / T15Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Courtesy LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Cadillac XTS (2013–2016) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Headlight High & Low BeamD3SShop position →
Front Turn Signal7443Shop position →
Parking Light7443Shop position →
Brake Light7443Shop position →
Tail Light7443Shop position →
Reverse Light912 / 921 / T15Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Courtesy LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop 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.