P245/35ZR19 front and P285/30ZR20 rear, performance , run-flat, summer-only tires1

1 Do not use summer only tires in winter conditions, as it would adversely affect vehicle safety, performance and durability.  Use only GM-approved tire and wheel combinations.  Unapproved combinations may change the vehicle's performance characteristics. For important tire and wheel information, go to www.chevyaccessories.com or see your dealer.