Chevrolet MONTE CARLO 1998 Manual page 65

Door Locks
Unlocked doors can be dangerous.
Passengers
--
especially children
--
can easily
open the doors and fall out. When
a
door
is
locked, the inside handle won't open
it.
Outsiders can easily enter through an unlocked
door when you slow down or stop your vehicle.
This may not be so obvious: You increase the
chance of being thrown out of the vehicle in a
crash if the doors aren't locked. Wear safety belts
properly, lock your doors, and you will be far
better off whenever you drive your vehicle.
There are several ways to lock and unlock your vehicle.
From the outside, use your door key or remote keyless
entry transmitter if your vehicle has this option.
From the inside, push the lever on the left (shown above)
to lock the door manually. To unlock, pull the lever.
Power Door Locks
Press the power door lock switch on the right (shown
above) to lock or unlock both doors.
Leaving Your Vehicle
If you are leaving the vehicle, take your keys, open your
door and set the locks from inside. Then get out and
close the door.