Magazine for the professional tire industry
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87 www.moderntiredealer.com Hyundai Sonata 2008-2010 Do not perform the TPMS procedure with the vehicle parked on a metal foor, an alignment rack or a lift SUBJECT VEHICLE: Hyundai Sonata 2008-2010 RELEARN PROCEDURE? Yes. SPECIAL TOOLS NEEDED? Yes, a TPMS exciter scan tool. T he tire pressure monitoring sys- tem (TPMS) of the 2008-2010 Hyundai Sonata monitors the air pressure in the four road tires with wheel-mounted tire pressure sensors. To do this, the system uses a receiver, four radio frequency (RF) tire pressure sensors, a warning indicator on the in- strument cluster, and a data circuit to perform system functions. When tire pressure is below the allowed threshold, the low pressure warning light on the instrument cluster will be illuminated. Te receiver has an auto-learn function that takes place once per ignition cycle. Upon successful completion, the four tire pressure sensor IDs are latched into memory for monitoring. Until the auto-learn function is completed, the previously learned sensors are monitored. Te receiver uses vehicle speeds of 12 mph (20 KM/H) or more for up to 20 minutes to learn a new sensor. TPMS warning light NOTE: Tire pressure is also depen- dent on temperature of the tire. Tire pressure should only be adjusted when tires are cold (about the same as ambient air temperature). W hen the low tire pressure warning light comes on, check the air pressure of all tires and adjust to specifcation. If the tire is damaged, repair as necessary. Ensure the warning light goes of. If the warning light is still on, there is a malfunction in the TPMS. See appropriate manufacturer service information. Reset procedures NOTE: If the tire pressure sensor is replaced, it will need to be initiated. Te TPMS is not afected by wheel and tire rotation. W hen the low tire pressure warning light comes on, check the air pressure of all tires and adjust to specifca- tion. Ensure the warning light goes of. Tire pressure sensor initiation NOTE: In the following procedure, a TPMS exciter scan tool must be used. NOTE: When four sensors have been learned as road wheels, it is not possible to learn new road wheel sensors on the same ignition cycle. NOTE: Do not perform this procedure if the vehicle is parked on a metal foor, roof or on an alignment rack or lif. Te metal will transfer the RF signals, which can cause the learn procedure to fail and set diagnostic trouble codes (DTCs). NOTE: Te sensor's default state will be Storage Auto (High Line). 1) Using TPMS exciter, change the sensor mode to Normal Fixed Base (Low Line). See Figure 1. NOTE: Sensors which were already confgured as Base (Low Line) will take longer to read. 2) Holding the TPMS exciter within three inches (76 mm) of the sensor valve, read each tire pressure sensor ID in the following order: front lef, front right, rear lef, then rear right. 3) Connect the TPMS exciter to Data Link Connector (DLC) located under lef side of instrument panel. Register the four sensor IDs to the receiver (see Figure 2 and Figure 3). NOTE: Te TPMS receiver will complete the learn procedure of the new sensor afer the vehicle is driven up to 20 minutes at speeds over 12 mph (20 KM/H). 4) Cycle Ignition, wait four minutes and check that "NORMAL RECEIVER STATE" is now displayed. Demounting/mounting procedures CAU TION: The tire should be demounted from the wheel using the tire changer manufacturer's instruc- tions. Use the following information to avoid damage during the demounting/ mounting procedures. CAUTION: Ensure that the wheel to be fted is designed for the sensor mount. Tere should normally be a mark to indicate this. Tire pressure sensors can be used on steel or aluminum rims. NOTE: If the tire pressure sensor is replaced, it will need to be initiated. See reset procedures. Te TPMS is not afected by wheel and tire rotation. Tire pressure sensor CAUTION: Do not use puncture repair fuid, as this can cause the sensor pressure port to block and an incorrect warning to occur. Removal 1) Remove the wheel and tire assembly. CAUTION: Avoid tire/tool contact with the valve while demounting the tire. 2) Defate the tire and remove balance weights. Te tire bead should be broken TPMS Quik-Link: 800-687-1557 ext. 20134