System Structure: Indicators
Six indicators are in the gauge assembly: The low pressure indicator, four tire indicators to show which tire is affected, and the TPMS indicator that comes on only if there's a problem with the system. When two or more tire pressures are low, the low pressure indicator comes on about 5 seconds before the appropriate tire indicator. Once low pressure is detected, the system scans all four pressure sensors to ensure that it turns on the correct tire indicator.