Black plate (20,1)
Chevrolet Impala Owner Manual - 2012
9-20
Driving and Operating
If you have to leave the vehicle with
the engine running, be sure your
vehicle is in P (Park) and the
parking brake is firmly set before
you leave it. See
Parking Brake on
page 9
‑
27
for more information.
Torque Lock
Torque lock is when the weight
of the vehicle puts too much
force on the parking pawl in the
transmission. This happens when
parking on a hill and shifting the
transmission into P (Park) is not
done properly and then it is difficult
to shift out of P (Park). To prevent
torque lock, set the parking brake
and then shift into P (Park). To find
out how, see
“
Shifting Into Park
”
in
this section.
If torque lock does occur, your
vehicle may need to be pushed
uphill by another vehicle to relieve
the parking pawl pressure, so you
can shift out of P (Park).
Shifting out of Park
Automatic Transmission
Shift Lock
The vehicle has an electronic shift
lock release system. The shift lock
release is designed to:
.
Prevent ignition key removal
unless the shift lever is in
P (Park).
.
Prevent movement of the shift
lever out of P (Park), unless the
ignition is in ON/RUN and the
regular brake pedal is applied.
The shift lock is always functional
except in the case of a an
uncharged or low voltage (less
than 9 volt) battery.
If the vehicle has an uncharged
battery or a battery with low voltage,
try charging or jump starting the
battery. See
Jump Starting on
page 10
‑
62
.
Console Shift
If the console shift lever cannot be
moved out of P (Park):
1. Apply and maintain the regular
brakes.
2. Turn the ignition to ON/RUN
position. See
Ignition Positions
on page 9
‑
15
for more
information.
3. Let up on the shift lever and
make sure the shift lever is
pushed all the way into P (Park).
4. Press the shift lever button.
5. Then, move the shift into the
desired gear.
If you still cannot move the shift
lever from P (Park), consult your
dealer or a professional towing
service.
Column Shift
If the column shift lever cannot be
moved out of P (Park):
1. Apply and maintain the regular
brakes.
