2018 GMC Terrain Wheel & Tire Sizes
Complete fitment guide for the 2018 GMC Terrain: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x115 bolt pattern — for every trim.
Bolt Pattern
5x115 / 5x120
Varies by trim
Centre Bore
70.3 mm
Lug nuts
M12 x 1.5
Torque: 140 Nm
TPMS
315 MHz
Factory (OEM) Tire Sizes for the 2018 GMC Terrain
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2018 GMC Terrain Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2018 GMC Terrain configuration.
1.5T · SUV, 5d
1.5L · I4 · Petrol · Bolt pattern: 5x115
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–24" |
| Wheel width | 7–9" |
| Wheel offset | 30–42 mm |
| Tire width | 225–255 mm |
1.6TD · SUV, 5d
1.6L · I4 · Diesel · Bolt pattern: 5x115
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–24" |
| Wheel width | 7–9" |
| Wheel offset | 30–42 mm |
| Tire width | 225–255 mm |
2.0T · SUV, 5d
2.0L · I4 · Petrol · Bolt pattern: 5x115
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–24" |
| Wheel width | 7–9" |
| Wheel offset | 30–42 mm |
| Tire width | 225–255 mm |
2.4i · SUV, 5d
2.4L · I4 · Petrol · Bolt pattern: 5x120
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–24" |
| Wheel width | 7–9" |
| Wheel offset | 30–42 mm |
| Tire width | 235–255 mm |
3.6i · SUV, 5d
3.6L · V6 · Petrol · Bolt pattern: 5x120
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–24" |
| Wheel width | 7–9" |
| Wheel offset | 30–42 mm |
| Tire width | 235–255 mm |
2018 GMC Terrain Fitment FAQ
What is the bolt pattern on a 2018 GMC Terrain?
The 2018 GMC Terrain uses 5x115 or 5x120 depending on trim — check the per-trim tables below to confirm which applies to your configuration. The centre bore is 70.3 mm.
What size tires fit a 2018 GMC Terrain?
Factory (OEM) tire sizes for the 2018 GMC Terrain include 225/65R17, 225/60R18, 235/55R18, 235/50R19, 235/55R19, 235/45R20, 245/45R20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2018 GMC Terrain?
Depending on trim, the 2018 GMC Terrain accepts wheels from 17" up to 24" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2018 GMC Terrain use?
The 2018 GMC Terrain uses M12 x 1.5 lug nuts, torqued to 140 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.