2007 Chrysler Aspen Owner's Manual - Page 309

STARTING AND OPERATING 309 The Tire Pressure Monitoring Telltale Lamp will illuminate in the instrument cluster, and an audible chime will be activated when one or more of the four active road tire pressures are low. The audible chime will sound once every ignition cycle for each condition that it detects. Should this occur, you should stop as soon as possible, check the inflation pressure of each tire on your vehicle, and inflate each tire to the pressure recommended by the vehicle manufacturer. The system will automatically update and the TPM warning lamp will extinguish once the updated tire pressures have been received. The vehicle may need to be driven for up to 10 minutes above 15 mph (25 kph) to receive this information. A low spare tire will not cause the Tire Pressure Monitoring Telltale Lamp to illuminate or the chime to sound. The Tire Pressure Monitoring Telltale Lamp will flash on and off for 60 seconds, and an audible chime will sound when a system fault is detected. The flash cycle will repeat every ten minutes, without an audible chime, until the fault condition no longer exists. If the ignition key is cycled, this sequence will repeat, providing the system fault still exists. NOTE: A non-matching or compact spare wheel and tire assembly does not have a tire pressure monitoring sensor; therefore, it will not be monitored by the Tire Pressure Monitor System (TPMS). If the non-matching or compact spare tire was used in place of one of the four road tires, a system fault will occur while driving the vehicle. In case of a low pressure condition (ie. flat tire), the "Tire Pressure Monitoring Telltale Light" will remain on solid until the original road tire has been properly repaired, and put back onto the vehicle in place of the non-matching or compact spare tire. 5