Chevrolet 1993 Astro Passenger Owner's Manual page 74

P (Park).
This locks your rear wheels.
It's
the best position to use when you start
your engine because your vehicle can't move easily.
W T I O N
It is dangerous to get out of your vehicle if the shift lever is not -fully
in P (Park) with the parking brake firmly set. Your vehicle can roll.
.
Don't leave your vehicle when the engine is running unless you have
to. If you have left the engine running, the vehicle can move
suddenly. You or others could be injured. to be sure your vehicle
won't move, when you're on fairly level ground, always set your
parking brake and move the shift lever to P (Park).
See "Shifting Into P (Park)" in the Index. If you are parking on a hill:
or pulling a trailer, also see "Parking on Hills" or "Towing a Trailer"
in the Index.
Ensure the shift lever is fully in P (Park) range before starting the
engine. Your vehicle has a brake-transmission shift interlock. You have
to fully apply your regular brakes before you can shift from P (Park)
when the ignition key is in the Run position. If you cannot shift out
of
P (Park), ease pressure on the shift lever-push the shift lever all the
way into P (Park) as you maintain brake application. Then move the shift
lever into the gear you wish. See "Shifting Out of P (Park) in this part.
R (Reverse).
Use this gear to back up.
I
Shifting to
R
(Reverse) while your vehicle is moving forward could dama--
your transmission. Shift to R (Reverse) only after your vehicle is stoppec
To rock your vehicle back and forth to get out of snow, ice or sand
without damaging your transmission, see "If You're Stuck in Sand, Mud,
Ice or Snow" in the Index.
N (Neutral).
In this position, your engine doesn't connect with the wheels. To restart
when you're already moving, use
N
(Neutral) only. Also, use N (Neutral)
when your vehicle is being towed.
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