it should tell u which tire is low, i have an issue with tpms. it shows on the screen rear right tire but when i check the psi its fine. i decided to check rear left tire found out it was low. so theres something wrong with tpms system. i have service appt tomorrow.
'15 X3 28i M-Sport ~ Carbon Black~ Oyster Nevada~Light Pack~Driver Assit~M// Shifter~ STOCK