When the TPMS detects a significant loss or gain of tire pressure, a “CHECK TIRE PRESSURE” message will appear on the DIC, and the low tire pressure warning indicator is displayed on the IPC. The RCDLR receives and translates the data contained in each sensor transmission, then sends the tire pressure and tire location data to the DIC.
NOTE: The sensor’s pressure accuracy is about 2 psi (14 kPa) at temperatures from 14 degrees Fahrenheit to 158 degrees F (-10 degrees Celsius to 70 degrees C). As vehicle speed increases, the sensors go into drive mode, in which they transmit once every 60 seconds. In this mode, the sensors transmit once every 60 minutes to minimize sensor battery consumption. When the vehicle is stationary, the sensors go into stationary mode.
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The TPMS uses the engine control module (ECM), body control module (BCM), instrument panel cluster (IPC), DIC, remote control door lock receiver (RCDLR), a radio frequency (RF) transmitting pressure sensor in each wheel/tire assembly, and the serial data circuit to perform the system functions.
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The system will also display individual tire pressures and their locations on the driver information center (DIC). The tire pressure monitor system (TPMS) of the Chevrolet Traverse and GMC Acadia, model years 2007 – 2013, alerts the driver when a large change in the pressure of one tire exists while the vehicle is being driven. SPECIAL TOOLS NEEDED? TPMS special tools EL-46079 or EL-50448 may be used. SUBJECT VEHICLES: Chevrolet Traverse and GMC Acadia, model years 2007 – 2013.
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