Tire Pressure Monitor SystemThe Tire Pressure Monitor System (TPMS) uses radioand sensor technology to check tire pressure levels.If your vehicle has this feature, sensors are mounted onthe tire and wheel assembly. The TPMS sensorstransmit tire pressure readings to a receiver located inthe vehicle once every 60 seconds while the vehicleis being driven, and once every 60 minutes if the vehicleis stationary for more than 15 minutes.If your vehicle has the base audio system, the DriverInformation Center (DIC) displays TPMS warnings andmessages on the radio’s display screen. See SystemControls on page 3-53 and DIC Warnings and Messageson page 3-61 for additional information and details aboutthe DIC operation and displays. If your vehicle has theNavigation system, TPMS warnings and messages aredisplayed on the message center screen, located insidethe tachometer. See Message Center (CTS-V) onpage 3-47 for information about the message centeroperation and displays.If a low tire pressure condition is detected, the TPMSwill display the Check Tire Pressure message onthe DIC or message center and, at the same time,illuminate the low tire pressure warning symbol onthe instrument panel cluster.Each tire, including the spare (if provided), should bechecked monthly when cold and inflated to the inflationpressure recommended by the vehicle manufactureron the vehicle placard or tire inflation pressure label.When the low tire pressuretelltale is illuminated, oneor more of your tires issignificantly under-inflated.You should stop and check your tires as soon aspossible, and inflate them to the proper pressure.Driving on a significantly under-inflated tire causesthe tire to overheat and can lead to tire failure.Under-inflation also reduces fuel efficiency and tiretread life, and may affect the vehicle’s handlingand stopping ability.The Tire and Loading Information label shows the sizeof your vehicle’s original tires and their recommendedcold inflation pressures. See Loading Your Vehicleon page 4-32, for the location of the tire and loadinginformation label. Also see Inflation - Tire Pressureon page 5-65.5-68
