2015 Cadillac ATS-L tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2015 trim.

Tires for the 2015 Cadillac ATS-L

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

225/40R18 front + 255/35R18 rear Best-rated standard on 2 trims

Check price on Amazon · 225/40R18 front Check price on Amazon · 255/35R18 rear
225/45R17 Best-rated optional on 2 trims

Check price on Amazon · 225/45R17
225/40R18 Best-rated optional on 2 trims

Check price on Amazon · 225/40R18

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Trims sold in 2015: 2
Generation: ATS-L
Other years: 2014
2015
2016
2017
All years (2014–2017)

2 trims sold in 2015

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Cadillac ATS-L ATS-L

2014–2017 2 trims

ATS-L 2.0T +1 variant 275 hp · I4 225/40R18 88W / 255/35R18 90W 3 fitments

2 versions of this trim share these tires and wheels.

Generation: ATS-L · 2014–2017
Power: 275 hp
Engine: I4, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 225/40R18 Check price on Amazon · 255/35R18 Wheels 18x8 ET42 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
Front225/40R18 88W	Rim 18x8 ET42 5x115	32 psi
Rear255/35R18 90W	Rim 18x9 ET52 5x115	35 psi
225/45R17 90V	Rim 17x8 ET42 5x115	32 psi
225/40R18 92V	Rim 18x8 ET42 5x115	35 psi

How to read 88W: 88 is the load index (up to 1,235 lb / 560 kg per tire) and W the speed rating (up to 168 mph / 270 km/h). ET42 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

What these columns mean

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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.