Ford Mustang Owner's Manual page 120

NOTE: When the combination lap/shoulder
belt is unbuckled and allowed to
retract completely, the retractor will
switch to the vehicle sensitive
(emergency) locking mode. See the
detailed instructions under Safety Seats
for Children in this chapter.
The lap belts should fit snugly and as low
as possible around the hips, not around
the waist.
Each seating position in your vehicle has a
specific safety belt assembly which is
made up of one buckle and one tongue
that are designed to be used as a pair. 1)
Use the shoulder belt on the outside
shoulder only. Never wear the shoulder
belt under the arm. 2) Never swing it
around your neck over the inside
shoulder. 3) Never use a single belt for
more than one person.
WARNING
WARNING
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