18" performance, summer-only, run-flat tires

  • P245/40R18 front, P275/35R18 rear1
. 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. Lower profile tires wear faster.  Wheel and tire damage may occur on rough or damaged roads or from surfaces or from curbs, debris or obstacles. This damage is not covered by the GM New Vehicle Limited Warranty.  For more details, go to my.cadillac.com/learnAbout/cadillactires or see your dealer.