GMC 2004 Canyon - Manual (Page 13)

{ CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts can’t do their job
when you’re reclined like this.
The shoulder belt can’t do its job because it
won’t be against your body. Instead, it will be
in front of you. In a crash you could go into it,
receiving neck or other injuries.
The lap belt can’t do its job either. In a crash
the belt could go up over your abdomen.
The belt forces would be there, not at your
pelvic bones. This could cause serious internal
injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety belt
properly.
Head Restraints
If your vehicle is equipped with adjustable head
restraints, adjust your head restraint so that the top of
the restraint is closest to the top of your head. This
position reduces the chance of a neck injury in a crash.
Push up on the head restraint to raise it. To lower
the head restraint, press the button located on top of
the seatback and push down on the head restraint.
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