Pontiac 1996 Grand Prix Owner's Manual page 38

Automatic Lap-Shoulder Belt
(2-Door Models)
This safety belt is called "automatic" because you don't
have to buckle up when you get into your vehicle.
And you don't have to unbuckle when you get out.
Just get into your vehicle. Then close and lock the door.
Adjust the seat (to see how, see "Seats" in the Index) so
you can sit up straight.
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