2009 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 2009 Buick LaCrosse, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 45 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2009 LaCrosse — Year-Specific Fitment Context
The 2009 Buick LaCrosse is in year 5 of 15 using the 5x115 pattern (2005–2019). Wheels from any 2005–2019 Buick LaCrosse are cross-compatible with the 2009 model. 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 2009 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 |
Fitment Notes
The 2009 Buick LaCrosse has a bolt pattern of 5x115.
This means it is a 5 lug pattern with a circle diameter of 115mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
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
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:
2009 Buick LaCrosse — Frequently Asked Questions
What is the bolt pattern for a 2009 Buick LaCrosse?
The 2009 Buick LaCrosse uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 45mm.
What other years of Buick LaCrosse have the same bolt pattern as the 2009?
The Buick LaCrosse uses the 5x115 pattern from 2005 through 2019. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
Why is matching the 70.3mm center bore important for the 2009 LaCrosse?
The 70.3mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
How tight should I torque the lug nuts on a 2009 Buick LaCrosse?
Refer to your owner's manual for exact specs, but always tighten the N 12x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
How do I measure the bolt pattern on my 2009 Buick?
The 2009 LaCrosse uses a 5x115 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
Do 2009 Buick LaCrosses use lug bolts or lug nuts?
The 2009 LaCrosse requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Fitment Checklist Before You Buy Wheels
- 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.
Editorial Fitment Notes
Buick LaCrosse has multiple wheel-fitment records across generations, so matching exact year and trim is important before ordering wheels.
- Observed production years in our database: 2005-2019 (15 model years).
- Observed bolt-pattern variants: 2 (5x115, 5x120).
- Observed total offset span across years: 4.0 mm.
- Observed center-bore variants: 2 | lug-size variants: 3.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 2009 Buick LaCrosse, please report it via our About page contact so we can verify and update this record.