Cadillac XT5 headlight bulb size by year

The low beam, high beam and fog light bulbs for every Cadillac XT5 from 2017–2026. Pick your year to jump straight to it. Each answer links to the page in Cadillac’s owner’s manual it came from.

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Cadillac XT5 bulb sizes at a glance

YearsLow beamHigh beam
2017–20199012—
2025–2026LEDLED

Where a year lists more than one bulb, it depends on trim or headlight type; see that year’s section below.

2017–2019 Cadillac XT5 headlight bulbs

LightBulbNotes
Low beam9012
also sold as HIR2
Halogen headlamps Two sources
Where this comes from (1 source)

Buy bulbs for your 2017–2019 Cadillac XT5

Recommended9012 standard replacement

Same light as the original bulb, at the lowest price. Fits your low beam.

More 9012 options: brighter halogen, long life, LED upgrade

2025–2026 Cadillac XT5 headlight bulbs

LightBulbNotes
Low beamLEDLED unit
Low beamLEDmanual: headlamps are LED (no replaceable bulb)
High beamLEDLED unit
High beamLEDmanual: headlamps are LED (no replaceable bulb)

LED headlights are usually serviced as a complete lamp assembly rather than a separate bulb; a dealer or parts counter can quote the assembly for your trim.

Where this comes from (2 sources)

Always double-check the size printed on the old bulb’s base before you buy. See how we source our data. More Cadillac models.