If the vehicle has P235/50R18, 245/45ZR19, P245/45R19, 255/40ZR19, P265/45R18, 275/40ZR19 or 285/35ZR19 size tires, they are classified as low–profile tires. These tires are designed for very responsive driving on wet or dry pavement, however, may produce more road noise and tend to wear faster.

Notice: Low–profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like, potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage.
Keep tires set to the correct inflation pressure and, when possible, avoid contact with curbs, potholes, and other road hazards.

Summer Performance Tires

Many General Motors high performance models come factory–equipped with tires that are optimized for maximum dry and wet road performance while still retaining satisfactory tread life, excellent durability, and low noise levels. In severe winter climates where snowfall may be significant, these tires may be found to provide less traction.