FORD 2015 F-550 v.1 - Manual (Page 36)

Conditions of operation
Then... If...
The safety belt warning light illuminates 1-
2 minutes and the warning chime sounds
4-8 seconds.
The driver's safety belt is not buckled
before the ignition switch is turned to the
on position...
The safety belt warning light and warning
chime turn off.
The driver's safety belt is buckled while the
indicator light is illuminated and the
warning chime is sounding...
The safety belt warning light and indicator
chime remain off.
The driver's safety belt is buckled before
the ignition switch is turned to the on posi-
tion...
SAFETY BELT MINDER
Belt-Minder™
This feature supplements the safety belt
warning function. It provides additional
reminders by intermittently sounding a
chime and illuminating the safety belt
warning light when the driver's seat is
occupied and the safety belt is unbuckled.
33
Super Duty (), enUSA
Safety Belts