Chevrolet 2007 Optra Owner's Manual page 111

Make sure the shift lever is fully in PARK (P)
before starting the engine. Your vehicle has an
automatic transaxle shift lock control system. The
regular brakes must be applied before you can
shift from PARK (P) when the ignition key is in ON.
If you cannot shift out of PARK (P) while holding
the brake pedal down, see Shifting Out of Park (P)
(Automatic Transaxle) on page 118.
REVERSE (R): Use this gear to back up.
When shifting from NEUTRAL (N) to
REVERSE (R), you must press down on the
shift lever while shifting.
Notice: Shifting to REVERSE (R) while your
vehicle is moving forward could damage
the transaxle. The repairs would not be
covered by your warranty. Shift to
REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out of
snow, ice, or sand without damaging the transaxle,
see If Your Vehicle is Stuck in Sand, Mud, Ice,
or Snow on page 235.
NEUTRAL (N): In this position, the engine does
not connect with the wheels. To restart while
you are already moving, use NEUTRAL (N) only.
Also, use NEUTRAL (N) when your vehicle is
being towed.
CAUTION:
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Shifting into a drive gear while your
engine is running at high speed is
dangerous. Unless your foot is firmly on
the brake pedal, your vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while your engine is running at
high speed.
Notice: Shifting out of PARK (P) or
NEUTRAL (N) while the engine is running at
high speed may damage the transaxle.
The repairs would not be covered by your
warranty. Be sure the engine is not running at
high speeds when shifting your vehicle.
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