Selecting the correct tire dimensions for your 2017 GMC Terrain is essential for safety, performance, and fuel efficiency. This specific model year offers several trim levels, each potentially featuring different wheel diameters and tire sizes straight from the factory. Understanding the nuances between the base models and the higher trashes like the Denali ensures your vehicle maintains its intended handling characteristics.
Factory Standard Tire Specifications
The most common OEM fitment for the 2017 GMC Terrain across the majority of trims is a 22-inch aluminum alloy wheel shod with a 245/55R22 tire. This size provides a balance between on-road comfort and a slightly more aggressive stance. For specific verification, checking the tire information placard located on the driver’s side door jamb is always the definitive method to confirm the pressure and size required for your specific vehicle identification number.
Performance Trim Variations
For drivers who opted for the AWD performance package or the higher trims, the factory specifications might differ slightly to accommodate enhanced handling dynamics. Some configurations may utilize a 235/55R22 size or stick strictly to the 245 variant. It is vital to match the exact diameter and width indicated on your vehicle’s certification label to avoid affecting the accuracy of the speedometer or the functionality of the stability control systems.
Aftermarket Options and Customization
Many owners of the 2017 Terrain choose to move beyond the factory dimensions for aesthetic or traction purposes. If you are looking to install a larger tire, such as a 265/45R23 or a 275/40R22, you will need to perform a fitment calculation to ensure there is no rubbing against the fenders during full lock or when the suspension compresses. Consulting a tire professional regarding the necessary wheel offset is highly recommended for custom installations.
Tire Pressure Monitoring System (TPMS)
Equipped with a direct TPMS, the 2017 GMC Terrain requires specific tire pressure settings to maintain the vehicle's computer diagnostics. Generally, the recommended cold inflation pressure sits around 35 PSI for the standard 22-inch tire, though this can vary based on the load index. Always refer to the sticker on the door frame rather than the sidewall of the tire itself when setting pressures for daily driving.
Load Index and Speed Rating Considerations
When replacing tires, the numbers on the sidewall dictate the tire's capability. The 2017 Terrain's tires will typically feature a load index of 97, 98, or 100, which corresponds to the maximum weight the tire can support at the specified pressure. Pairing this with a speed rating of H or V ensures the tire can handle the performance capabilities of the Terrain's engine safely without risking overheating or blowouts.
Seasonal and Terrain-Specific Recommendations
Depending on your climate, the 2017 GMC Terrain can benefit from different tire compounds. All-season tires are suitable for mild climates, but if you experience harsh winters, switching to dedicated snow tires can dramatically improve traction on ice and packed snow. Conversely, if you frequently drive off-road, considering a mud-terrain tire with a more aggressive tread pattern will protect the rims and provide the necessary grip.
