326 VEHICLE CARElight comes on, stop as soon aspossible and inflate the tires to therecommended pressure shown on theTire and Loading Information label.See Vehicle Load Limits 0 179.A message to check the pressure in aspecific tire displays in the DriverInformation Center (DIC). The low tirepressure warning light and the DICwarning message come on at eachignition cycle until the tires areinflated to the correct inflationpressure. Using the DIC, tire pressurelevels can be viewed. For additionalinformation and details about the DICoperation and displays see DriverInformation Center (DIC) 0 132.The low tire pressure warning lightmay come on in cool weather whenthe vehicle is first started, and thenturn off as the vehicle is driven. Thiscould be an early indicator that the airpressure is getting low and needs tobe inflated to the proper pressure.A Tire and Loading Information label,attached to your vehicle, shows thesize of the original equipment tiresand the correct inflation pressure forthe tires when they are cold. SeeVehicle Load Limits 0 179 for anexample of the Tire and LoadingInformation label and its location.Also see Tire Pressure 0 322.The TPMS can warn about a low tirepressure condition but it does notreplace normal tire maintenance. SeeTire Inspection 0 329, Tire Rotation0 329, and Tires 0 315.CautionTire sealant materials are not allthe same. A non-approved tiresealant could damage the TPMSsensors. TPMS sensor damagecaused by using an incorrect tiresealant is not covered by thevehicle warranty. Always use onlythe GM approved tire sealantavailable through your dealer orincluded in the vehicle.TPMS Malfunction Light andMessageThe TPMS will not function properly ifone or more of the TPMS sensors aremissing or inoperable. When thesystem detects a malfunction, the lowtire pressure warning light flashes forabout one minute and then stays onfor the remainder of the ignition cycle.A DIC warning message also displays.The malfunction light and DICwarning message come on at eachignition cycle until the problem iscorrected. Some of the conditions thatcan cause these to come on are:. One of the road tires has beenreplaced with the spare tire. Thespare tire does not have a TPMSsensor. The malfunction light andDIC message should go off afterthe road tire is replaced and thesensor matching process isperformed successfully. See “TPMSSensor Matching Process” later inthis section.. The TPMS sensor matchingprocess was not done or notcompleted successfully afterrotating the tires. The malfunction
