Chevrolet 2003 Impala Owner's Manual page 32

Rear Seat Passengers Rear Seat Passenger Positions
It's very important for rear seat passengers to buckle
up! Accident statistics show that unbelted people in the
rear seat are hurt more often in crashes than those
who are wearing safety belts.
Rear passengers who aren't safety belted can be
thrown out of the vehicle in a crash. And they can strike
others in the vehicle who are wearing safety belts.
Lap-Shoulder Belt
All rear seating positions have lap-shoulder belts. Here's
how to wear one properly.
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