If your vehicle has P265/65R18 or P285/45R22 sizetires and you will be driving at high speeds, speeds of100 mph (160 km/h) or higher, set the cold inflationpressure to 3 psi (20 kPa) above the recommended tirepressure shown on the Tire and Loading InformationLabel. When you end this high-speed driving, return thetires to the cold inflation pressure shown on the Tireand Loading Information label. See Loading YourVehicle on page 4-35 and Inflation - Tire Pressureon page 5-61.Tire Pressure Monitor SystemThe Tire Pressure Monitor System (TPMS) uses radioand sensor technology to check tire pressure levels.The TPMS sensors monitor the air pressure inyour vehicle’s tires and transmit tire pressure readingsto a receiver located in the vehicle.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.(If your vehicle has tires of a different size than thesize indicated on the vehicle placard or tire inflationpressure label, you should determine the propertire inflation pressure for those tires.)As an added safety feature, your vehicle has beenequipped with a tire pressure monitoring system (TPMS)that illuminates a low tire pressure telltale when oneor more of your tires is significantly under-inflated.Accordingly, when the low tire pressure telltaleilluminates, you should stop and check your tires assoon as possible, and inflate them to the properpressure. Driving on a significantly under-inflated tirecauses the 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.Please note that the TPMS is not a substitute for propertire maintenance, and it is the driver’s responsibility tomaintain correct tire pressure, even if under-inflationhas not reached the level to trigger illumination ofthe TPMS low tire pressure telltale.Your vehicle has also been equipped with a TPMSmalfunction indicator to indicate when the system is notoperating properly. The TPMS malfunction indicatoris combined with the low tire pressure telltale. Whenthe system detects a malfunction, the telltale willflash for approximately one minute and then remaincontinuously illuminated. This sequence will continueupon subsequent vehicle start-ups as long as themalfunction exists.5-63
