PREVOST X3-45 VIP 2017 Owner's Manual page 144

7-6 Safety Features and Equipment

Set Target Pressures
This menu allows the end user to fine tune the
target pressure setting, taking account for the
specific operating conditions (cold weather
operation or unloaded operation). The end user
can readjust the target pressure within +30%
and -20% of the factory set target pressure but
not outside this range.
The factory set target pressure is always kept in
permanent memory into the TPMS display and
cannot be edited by the end user.
When the user sets a new target value, the
selection can't be made outside the valid range.