TPMS
id027000000100
Purpose of Adoption
• A tire pressure monitoring system (TPMS) has been adopted which warns the driver if tire pressure is too low.
Service Point
• The tire pressure monitoring system (TPMS) monitors the tire pressure of the four tires , and warns the driver if the pressure is too low on one tire or more.
• A tire pressure monitoring system (TPMS) has been adopted which indirectly detects the tire pressures and warns the driver.
• A switch for initializing the tire pressure monitoring system (TPMS) after the tire pressures have been adjusted is installed to the dashboard.
• Alert due to low pressure detection (not system malfunction) illuminates the warning light. TPMS system problem (system malfunction) flashes the warning light.
Common Inquiry
• If tire rotation or air pressure adjustment is performed, the system will function normally by pressing the TPMS initialization switch. If the initialization is not performed the warning light is illuminated earlier or later than normal.
• If the system is not initialized with the specified tire pressure, the warning light may not be illuminated when the pressure is low, or it may be illuminated even when the tire pressure is normal.
• The TPMS functions even with non-specified tires installed. However, depending on the tire characteristics, the alert may be illuminated earlier or later.
• If the tire pressures are set for light loads with the warning light left illuminated from when the tire pressure was initialized under a loaded condition, the warning light may be re-illuminated.
• In the initialization, the warning light flashes 2 times, and the initialization switch needs to be long-pressed until the beep sounds once (answer-back).
Other
• If the tire pressures are not periodically adjusted, the tire pressures will decrease even if there is no tire malfunction. (Air particles will permeate the tire rubber and escape, or tire pressure will decrease due to a decrease in ambient temperature)
• The tire pressure monitoring system (TPMS) has a mis-use prevention logic which illuminates the tire pressure monitoring warning light if the tire pressure monitoring system is initialized without adjusting the tire pressures even though the tire pressure monitoring warning light was illuminated.
• The tire pressure when the tire pressure monitoring warning light was illuminated is compared with the pressure when the tire pressure monitoring system was initialized, and if the difference in pressure is within the specification, the tire pressure monitoring warning light is illuminated. This mis-use prevention logic operates two times.
• The tire pressure monitoring system (TPMS) illuminates the tire pressure monitoring warning light to notify the driver that the tire pressure is lower than the specified value set by the initialization.