302 VEHICLE CAREdealer for service if the TPMSmalfunction light and DIC messagecomes on and stays on.TPMS Sensor Matching ProcessEach TPMS sensor has a uniqueidentification code. The identificationcode needs to be matched to a newtire/wheel position after rotating thevehicle’s tires or replacing one or moreof the TPMS sensors. The TPMSsensor matching process should alsobe performed after replacing a sparetire with a road tire containing theTPMS sensor. The malfunction lightand the DIC message should go off atthe next ignition cycle. The sensorsare matched to the tire/wheelpositions, using a TPMS relearn tool,in the following order: driver sidefront tire, passenger side front tire,passenger side rear tire, and driverside rear. See your dealer forservice or to purchase a relearn tool.A TPMS relearn tool can also bepurchased. See Tire Pressure MonitorSensor Activation Tool atwww.gmtoolsandequipment.com orcall 1-800-GM TOOLS(1-800-468-6657).There are two minutes to match thefirst tire/wheel position, andfive minutes overall to match all fourtire/wheel positions. If it takes longer,the matching process stops and mustbe restarted.The TPMS sensor matching process is:1. Set the parking brake.2. Place the vehicle in ServiceMode. See Ignition Positions0 189.3. Make sure the Tire Pressure infodisplay option is turned on. Theinfo displays on the DIC can beturned on and off through theOptions menu. See DriverInformation Center (DIC) 0 134.4. Use the five-way DIC control onthe right side of the steeringwheel to scroll to the TirePressure screen under the DICinfo page. See Driver InformationCenter (DIC) 0 134.5. Press and hold SEL in the centerof the five-way DIC control.The horn sounds twice to signalthe receiver is in relearn modeand the TIRE LEARNING ACTIVEmessage displays on the DICscreen.6. Start with the driver sidefront tire.7. Place the relearn tool against thetire sidewall, near the valve stem.Then press the button to activatethe TPMS sensor. A horn chirpconfirms that the sensoridentification code has beenmatched to this tire and wheelposition.8. Proceed to the passenger sidefront tire, and repeat Step 7.9. Proceed to the passenger siderear tire, and repeat Step 7.10. Proceed to the driver side reartire, and repeat Step 7. The hornsounds two times to indicate thesensor identification code hasbeen matched to the driver siderear tire, and the TPMS sensormatching process is no longer
