Originally Posted by Zytek_Fan
The TPMS sensors are calibrated for use in the stock tires, so it might send a light if you use a different pressure in the 37s
Have not figured out how the sensors work to set reference pressure for the tire.
For example a shop rotated my tires, I drove 4 miles home and then went thru the TPMS procedure in the manual to get the computer to ID which tire was where.
Interesting was I had them rotated and pressures changed at the shop, drove it home 4 miles then did the computer TPMS procedure (page 236). The 80 lbs rear tires were now 65 lbs on the front and did not set off a warning. I thought that the rear tire sensors would have been monitored by the comuter for 80 lbs and at 65 lbs would have hollered till it went thru the TPMS procedure to know the tires changed location.
During the TPMS process after rotation,the computer sure knew when I let air out and sounded the horn acknowledging that tire was at a know location.
The TPMS procedure in the manual says after the computer tells you which tire to let air out to get the sensor ID location for the computer, then air the tire back up to desired pressures, but... talks about unloaded or loaded pressures being your choice.
So I now am wondering if airing up the tire to whatever pressure after the TPMS procedure sets the monitor minimums.
It still does not explain why my tire rotation and the shop changing pressures and location did not holler in the 4 miles home.