2026 Cadillac XT5 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 6x120 on every 2026 trim.

Tires for the 2026 Cadillac XT5

Sizes most trims come with first. Open your trim below for its exact size.

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Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

2021–2027 USA 2 trims

XT5 2.0T (SUV, 5d) 235 hp · 2.0 L Petrol 2.0 L 235/65R18 5 fitments

Check price on Amazon · 235/65R18 Wheels 18x8 ET50 · 6x120 · 66.9 mm on Amazon

Fit	Tire size	Rim size and bolt pattern	Pressure, psi
OE	235/65R18	Rim 18x8 ET50 6x120	35 psi
Alt	235/60R19	Rim 19x8 ET50 6x120	35 psi
Alt	255/55R19	Rim 19x8 ET50 6x120	36 psi
Alt	235/55R20	Rim 20x8 ET50 6x120	36 psi
Alt	255/50R20	Rim 20x8.5 ET50 6x120	36 psi

XT5 3.6i (SUV, 5d) 310 hp · 3.6 L Petrol 3.6 L 235/65R18 5 fitments

Check price on Amazon · 235/65R18 Wheels 18x8 ET50 · 6x120 · 66.9 mm on Amazon

Fit	Tire size	Rim size and bolt pattern	Pressure, psi
OE	235/65R18	Rim 18x8 ET50 6x120	39 psi
OE	235/55R20	Rim 20x8 ET50 6x120	39 psi
Alt	255/55R19	Rim 19x8 ET50 6x120	39 psi
Alt	255/50R20	Rim 20x8.5 ET50 6x120	39 psi
Alt	265/45R21	Rim 21x8.5 ET55 6x120	39 psi

What these columns mean

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.