Why Safety Belts Work - GMC C series 2002 Owner's Manual

If your vehicle has a safety belt reminder tone, a tone
comes on as a reminder to buckle up. See "Safety Belt
Reminder Tone" in the Index.
In most states and Canadian provinces, the law says to
wear safety belts. Here's why: They work.
You never know if you'll be in a crash. If you do have
a crash, you don't know if it will be a bad one.
A few crashes are mild, and some crashes can be so
serious that even buckled up a person wouldn't survive.
But most crashes are in between. In many of them,
people who buckle up can survive and sometimes walk
away. Without belts they could have been badly hurt
or killed.
After more than 30 years of safety belts in vehicles,
the facts are clear. In most crashes buckling up does
matter ... a lot!
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Why Safety Belts Work

Q:
Aren't safety belts for kids?
A:
Yes. And they're for adult truckers, and anyone
else who rides in your vehicle.
Here's why: when your vehicle goes, say, 30 mph
(50 km/h), so do you and your passengers.