Buick 1994 LeSabre Owner's Manual page 20

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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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