Important Consumer Information When Considering New Tires or Wheels for GM Vehicles

GM Accessory wheel and tire systems are designed as a system and must be used as such. Approved tire and wheel system combinations can be found by clicking on a GM vehicle, brand, then model, which can be found on the GM Accessories Zone home page.  Larger-size wheel and tire systems may require a new spare tire.  Also, generally, tire chains cannot be used due to lack of clearance to the wheelhouse. Trucks equipped with accessory wheel/tire assemblies will not be compatible for use with snowplow equipment.

Using Different Size Wheels or Tires
If you add wheels or tires that are a different size than your original equipment wheels and tires, this may affect the way your vehicle performs, including its braking, ride and handling characteristics, stability, [and] resistance to roll-over, tire tread wear rate, fuel economy and tire traction (on wet, dry, snow covered and icy roads).  Additionally, if your vehicle has electronic systems such as, anti-lock brakes, traction control, and electronic stability control, the performance of these systems can be affected. These changes in vehicle performance are not covered by the GM New-Vehicle Limited Warranty.

Replacing Tires
GM has developed and matched specific tires and wheels for each GM vehicle application.  GM strongly recommends that replacement tires be the same as the original equipment tires.  This way, your vehicle will continue to have tires that are designed to give the same performance and vehicle safety, during normal use, as the original tires. If you choose different performance characteristics, make sure that replacement tires are the same size, load range, speed rating, and construction type (radial and bias-belted tires) as the vehicle¿s original tires.  In addition, GM recommends replacing tires in sets of four. This is because uniform tread depth on all tires will help keep your vehicle performing most like it did when the tires were new. Replacing less than a full set of tires can affect the braking and handling performance of your vehicle.