Does nitrogen inflation affect the accuracy of tire pressure monitoring systems now being installed as standard equipment on some cars?
No! Nitrogen inflation gas has no detrimental affect on TPMS sensors because the sensor is reacting to the pressure level of the inflation gas within the tire. RTI continually receives reports that vehicles equipped with TPMS and running nitrogen tire inflation have had dramatically fewer issues with false signals from such systems because the nitrogen gas now contained inside the tire is virtually moisture-free. (Moisture contained in regular air dramatically affects pressure and temperature stability inside tires.) The TPMS low-pressure indicator light should not be illuminated if a vehicle’s tires are properly inflated with nitrogen to the manufacturer’s recommended specification unless the TPMS is malfunctioning.
