My wife advised that her CX-30 has a low tyre warning on the dash. In fact each tyre was now showing 31psi rather than the normal 36. This is not unusual in very cold temperatures. I pumped them back up to 36 and went for a short drive to update the tyre pressure data as there’s now no TPMS reset button. Now I’ve been for a short drive the data hasn’t reset and the display is still showing 31 and last updated 31/12/20 @ 16:44. Even though the car still thinks the tyres are at 31 the warning message has now gone. Should the tyre pressure data have updated straightaway?