2022 GMC Terrain — SLE
The 2022 GMC Terrain SLE shipped with 2 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
225/65R17
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (146.3 mm) |
| Rim diameter | 17" |
| Overall tire diameter | ~28.5" |
| Revolutions per mile | ~707 |
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225/60R18
| Section width | 225 mm |
|---|---|
| Aspect ratio (sidewall height) | 60% (135 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~28.6" |
| Revolutions per mile | ~704 |
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What this size means for your GMC Terrain
On the 2022 GMC Terrain SLE, the factory 225/65R17 measures about 28.5″ in overall diameter with a 146.3 mm (5.8″) sidewall, and completes roughly 707 revolutions per mile. Its 65-series aspect ratio gives a taller, comfort-biased sidewall that favors ride quality and shrugs off rough pavement. In tire terms it is a passenger (P-metric / Euro-metric) size.
The 225/65R17 and 225/60R18 roll within 0.1″ (0.4%) of each other in overall diameter, so they are interchangeable from a speedometer standpoint — the second size is an optional wheel package rather than a different rolling size.
Other 2022 GMC Terrain trims
GMC Terrain tire sizes by year
- 2026 GMC Terrain 235/65R17
- 2025 GMC Terrain 235/65R17 / 235/55R19
- 2024 GMC Terrain 225/65R17
- 2023 GMC Terrain 225/65R17
- 2021 GMC Terrain 235/50R19
- 2020 GMC Terrain 235/50R19
- 2019 GMC Terrain 235/50R19
- 2018 GMC Terrain 235/50R19
- 2017 GMC Terrain 235/55R18 / 235/55R19
- 2016 GMC Terrain 235/55R18 / 235/55R19
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.