2019 Buick LaCrosse tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 2019 trim.

Tires for the 2019 Buick LaCrosse

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

235/50R18 Best-rated standard on 3 trims · USA, China

Check price on Amazon · 235/50R18
245/45R19 Best-rated optional on 3 trims · USA, China

Check price on Amazon · 245/45R19
245/40R20 Best-rated optional on 3 trims · USA, China

Check price on Amazon · 245/40R20

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Trims sold in 2019: 3
Generation: III sold in 2 market versions
Other years: 2015
2016
2017
2018
2019
2020
2021
2022
All years (2005–2026)

3 trims sold in 2019

Sold in 2 market versions. Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Buick LaCrosse III

2016–2023 3 trims

USA

2 trims

LaCrosse 2.5i +1 variant 194 hp · 2.5L LHN I4 · Hybrid 235/50R18 97V 3 fitments

Same tires and wheels on: 3.6i

Generation: III · 2016–2019
Market: USA
Power: 194 hp
Engine: 2.5L LHN I4, Hybrid
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 235/50R18 Wheels 18x8 ET42 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
235/50R18 97V	Rim 18x8 ET42 ~~5x115~~	35 psi
245/45R19 98W	Rim 19x8.5 ET40 ~~5x115~~	35 psi
245/40R20 95W	Rim 20x8.5 ET40 ~~5x115~~	35 psi

How to read 97V: 97 is the load index (up to 1,609 lb / 730 kg per tire) and V the speed rating (up to 149 mph / 240 km/h). ET42 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

China

1 trim

LaCrosse 2.0T 237 hp · 2.0L LTG I4 235/50R18 97V 3 fitments

Generation: Facelift · 2019–2023
Market: China
Power: 237 hp
Engine: 2.0L LTG I4, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 235/50R18 Wheels 18x8 ET42 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
235/50R18 97V	Rim 18x8 ET42 ~~5x115~~	35 psi
245/45R19 98W	Rim 19x8.5 ET40 ~~5x115~~	35 psi
245/40R20 95W	Rim 20x8.5 ET40 ~~5x115~~	35 psi

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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.