Ford MKZ 2010 Owner's Manual page 132

Seating and Safety Restraints
Belt-Minder
The Belt-Minder feature is a supplemental warning to the safety belt
warning function. This feature provides additional reminders by
intermittently sounding a chime and illuminating the safety belt warning
light in the instrument cluster when the driver's and front passenger's
safety belt is unbuckled.
The Belt-Minder feature uses information from the front passenger
sensing system to determine if a front seat passenger is present and
therefore potentially in need of a warning. To avoid activating the
Belt-Minder feature for objects placed in the front passenger seat,
warnings will only be given to large front seat occupants as determined
by the front passenger sensing system.
Both the driver's and passenger's safety belt usages are monitored and
either may activate the Belt-Minder feature. The warnings are the same
for the driver and the front passenger. If the Belt-Minder warnings have
expired (warnings for approximately five minutes) for one occupant
(driver or front passenger), the other occupant can still activate the
Belt-Minder feature.
When the Belt-Minder feature is activated, the safety belt warning light
illuminates and the warning chime sounds for six seconds every
30 seconds, repeating for approximately five minutes or until the safety
belts are buckled.
The Belt-Minder feature uses two different warning chimes. During the
first minute of activation, the warning chime will sound once every
second. The remaining warning chimes will sound twice every second
while the system is activated.
132
2010 MKZ (378)
Owners Guide, 3rd Printing
USA (fus)