Buick 1994 Century Owner's Manual page 77

Ignition Key Positions
C
9 . 5
B
A
i
E
With the ignition key in the ignition switch, you can turn
the switch to five positions:
(A) Accessory: An "on" position in which you can
operate your electrical power accessories. Press in the
ignition switch as you turn the top of
it
toward you.
(B) Lock:
The only position in which you can remove
the key. This locks your steering wheel, ignition and
transaxle.
(C) Off:
Unlocks the steering wheel, ignition, and
transaxle, but does not send electrical power
to
any
accessories. Use this position if your vehicle must be
pushed or towed, but never try to push-start your
vehicle. A warning chime will sound if you open the
driver's door when the ignition is off and the key is in
the ignition.
(D) Run: An ''on'' position to which the switch returns
after you start your engine and release the switch. The
switch stays in the "Run" position when the engine is
running. But even when the engine is not running, you
can use "Run" to operate your electrical power
accessories, and to display some instrument panel
warning lights.
(E) Start:
Starts the engine. When the engine starts,
release the key. The ignition switch will return to "Run"
for normal driving.