GMC Express 2011 Owner's Manual page 92

3-44 Seats and Restraints
Q: What is the proper way to
wear safety belts?
A: An older child should wear a
lap-shoulder belt and get the
additional restraint a shoulder
belt can provide. The shoulder
belt should not cross the face or
neck. The lap belt should fit
snugly below the hips, just
touching the top of the thighs.
This applies belt force to the
child's pelvic bones in a crash.
It should never be worn over the
abdomen, which could cause
severe or even fatal internal
injuries in a crash.
Also see Rear Safety Belt Comfort
Guides under Lap-Shoulder Belt on
page 3 18.
According to accident statistics,
children and infants are safer
when properly restrained in a child
restraint system or infant restraint
system secured in a rear seating
position.
In a crash, children who are
not buckled up can strike other
people who are buckled up, or
can be thrown out of the vehicle.
Older children need to use safety
belts properly.
WARNING
Never do this.
Never allow two children to wear
the same safety belt. The safety
belt cannot properly spread the
impact forces. In a crash, the
two children can be crushed
together and seriously injured.
A safety belt must be used by
only one person at a time.