2018 Buick LaCrosse Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 Buick LaCrosse, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | 12x1.5 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 49 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2018 LaCrosse — Year-Specific Fitment Context
The 2018 Buick LaCrosse is in year 14 of 15 using the 5x115 pattern (2005–2019). Wheels from any 2005–2019 Buick LaCrosse are cross-compatible with the 2018 model. Note: the 2017 model used a different pattern (5x120), so its wheels are NOT interchangeable with the 2018. Across its full production run (2005–2019), the LaCrosse has also used: 5x120.
Buick LaCrosse Bolt Pattern by Year
The table below shows how the LaCrosse's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2005 | 5x115 | 70.3 | 45 |
| 2006 | 5x115 | 70.3 | 45 |
| 2007 | 5x115 | 70.3 | 45 |
| 2008 | 5x115 | 70.3 | 45 |
| 2009 | 5x115 | 70.3 | 45 |
| 2010 | 5x115 | 70.3 | 45 |
| 2011 | 5x120 | 67.1 | 45 |
| 2012 | 5x120 | 67.1 | 45 |
| 2013 | 5x120 | 67.1 | 45 |
| 2014 | 5x120 | 67.1 | 45 |
| 2015 | 5x120 | 67.1 | 45 |
| 2016 | 5x120 | 67.1 | 45 |
| 2017 | 5x120 | 67.1 | 45 |
| ▸ 2018 | 5x115 | 70.3 | 49 |
| 2019 | 5x115 | 70.3 | 49 |
5x115 Pattern Context
This bolt pattern appears on 498 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x115:
Expert Buying Guide for 2018 Buick LaCrosse
For the 2018 Buick LaCrosse, the bolt pattern is 5x115 with a center bore of 70.3mm. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to prevent vibrations. The factory offset is 49mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.5) and seat type (conical/60-degree). Avoid ball-seat lug nuts as they can loosen. Re-torque after 50-100 miles. Note: 2017 LaCrosse uses 5x120, so those wheels are incompatible.
Historical Fitment Data Reference
In our dataset, Buick LaCrosse appears from 2005 to 2019 (15 model years). Across model years, this model appears with 2 bolt patterns (5x115, 5x120).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 3
- Observed total offset span across years: 4.0 mm
Quick Tips & Safety Warnings
- ✅ Always use hub-centric rings if aftermarket wheels have a larger center bore than 70.3mm to ensure proper fitment and reduce vibration.
- ✅ Re-torque lug nuts to 100 ft-lbs after 50-100 miles of driving to account for wheel settling.
- ✅ Verify that aftermarket wheels have sufficient brake caliper clearance, as the LaCrosse's front brakes can be large.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2018 Buick LaCrosse — Frequently Asked Questions
What is the bolt pattern for a 2018 Buick LaCrosse?
The 2018 Buick LaCrosse uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 49mm.
What other years of Buick LaCrosse have the same bolt pattern as the 2018?
The Buick LaCrosse uses the 5x115 pattern from 2005 through 2019. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Can I use 2017 Buick LaCrosse wheels on a 2018?
No. The 2017 LaCrosse used a 5x120 bolt pattern, which differs from the 2018's 5x115. They are not interchangeable.
Can I use spacers on my 2018 Buick LaCrosse?
Yes, but ensure the wheel spacers match the 5x115 bolt pattern and 70.3mm center bore. Also verify that you have enough thread engagement for your 12x1.5 hardware.
What is the center bore of a 2018 Buick LaCrosse?
The factory center bore (hub bore) for the 2018 Buick LaCrosse is 70.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What is the PCD for a 2018 Buick LaCrosse?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 LaCrosse, the PCD is 5x115.
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