Chevrolet 1994 Blazer Owner's Manual page 21

This figure lights up as a reminder to buckle up. (See "Safety Belt Reminder
Light" in the Index.)
In many 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 25 years of safety belts in vehicles, the facts are clear. In
most crashes buckling up does matter
...
a lot!
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