2018 GMC Terrain Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 GMC Terrain, 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) | 40 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2018 Terrain — Year-Specific Fitment Context
The 2018 model year marks the beginning of the GMC Terrain's 5x115 bolt pattern era, which continued through 2024 (7 consecutive years). Wheels from any 2018–2024 GMC Terrain 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 (2010–2024), the Terrain has also used: 5x120.
GMC Terrain Bolt Pattern by Year
The table below shows how the Terrain's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2010 | 5x120 | 66.9 | 40 |
| 2011 | 5x120 | 66.9 | 40 |
| 2012 | 5x120 | 66.9 | 40 |
| 2013 | 5x120 | 66.9 | 40 |
| 2014 | 5x120 | 66.9 | 40 |
| 2015 | 5x120 | 66.9 | 40 |
| 2016 | 5x120 | 66.9 | 40 |
| 2017 | 5x120 | 66.9 | 40 |
| ▸ 2018 | 5x115 | 70.3 | 40 |
| 2019 | 5x115 | 70.3 | 40 |
| 2020 | 5x115 | 70.3 | 40 |
| 2021 | 5x115 | 70.3 | 40 |
| 2022 | 5x115 | 70.3 | 40 |
| 2023 | 5x115 | 70.3 | 40 |
| 2024 | 5x115 | 70.3 | 40 |
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 GMC Terrain
For the 2018 GMC Terrain, the bolt pattern is 5x115 with a center bore of 70.3mm. When selecting aftermarket wheels, hub-centric rings are essential to ensure the wheel is centered on the hub, preventing vibrations. The recommended offset is 40mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.5) and seating type—either conical (60-degree) or ball seat, matching the wheel's design. Improper lug nuts can lead to wheel loosening. Verify that aftermarket wheels have a center bore at least 70.3mm or use rings. Avoid wheels from 2017 or earlier Terrain models (5x120 pattern).
Historical Fitment Data Reference
In our dataset, GMC Terrain appears from 2010 to 2024 (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: 2
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Check that aftermarket wheels clear the brake calipers; some designs may require spacers.
- ✅ Use a torque wrench set to 140 ft-lbs (190 Nm) to avoid over-tightening.
- ⚠️ 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 GMC Terrain — Frequently Asked Questions
What is the bolt pattern for a 2018 GMC Terrain?
The 2018 GMC Terrain uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 40mm.
What other years of GMC Terrain have the same bolt pattern as the 2018?
The GMC Terrain uses the 5x115 pattern from 2018 through 2024. 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 GMC Terrain wheels on a 2018?
No. The 2017 Terrain used a 5x120 bolt pattern, which differs from the 2018's 5x115. They are not interchangeable.
Why is matching the 70.3mm center bore important for the 2018 Terrain?
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.
What is the PCD for a 2018 GMC Terrain?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 Terrain, the PCD is 5x115.
What is the center bore of a 2018 GMC Terrain?
The factory center bore (hub bore) for the 2018 GMC Terrain is 70.3mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
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