Chevrolet 2002 Venture Owner's Manual page 164

Shifting Out of PARK (P)
Your vehicle has an automatic transaxle shift lock
control system. You have to fully apply your regular
brakes before you can shift from PARK (P), when the
ignition is in RUN.
As you step on the brake pedal, while in PARK (P), you
may hear a click from the solenoid of the system. This
ensures that the system is operating properly. See
"Automatic Transaxle Operation" in the Index.
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If you cannot shift out of PARK (P), ease pressure on
the shift lever by pushing it all the way into PARK (P)
as you maintain brake application. Then try to move the
shift lever into the gear you want. If you ever hold the
brake pedal down but still can't shift out of PARK (P),
try this:
1. Turn the ignition key to OFF.
2. Apply and hold the brake until the end of Step 4.
3. Shift to NEUTRAL (N).
4. Start the engine and then shift to the drive gear
you want.
5. Have the vehicle fixed as soon as you can.