I have an 05 RL and have noticed that the tire pressure reading per the TPMS dashboard reading is several pounds over what an actual digital tire pressure gauge is showing. My gauge is showing 37 and the TPMS system is showing 32. I'm inclined to believe the gauge since I get tire squeal as I go around corners in my business parking garage (at a normal speed). Can the system be recalibrated?

Larry

 

Have you gone into the personal settings for the car? You can change the temperature to coincide with what the real temperature is by going up or down. I wonder if you can do the same with the TPMS?

 

are you doing the tire pressure at separate times? are you using OEM or 3rd party sensors?

 

Have you checked them with a different gauge? Most all tire pressure gauges will read differently from each other, including TPMS sensors. I can set all of my tires to the exact same pressure using the same auto inflator at work and the pressure readout in the MID will show varying pressures immediately after.

 

i believe the tpms with the rl, auto reads and calcs

 

yes, pull the batter cable.