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GMC 1997 Suburban - Ignition Transmission Lock Check; Parking Brake and Automatic Transmission PARK Mechanism Check

GMC 1997 Suburban
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Ignition Transmission Lock Check
While parked, and with the parking brake set,
try
to turn
the ignition key to LOCK
in
each shift lever position.
The key should turn
to
LOCK only when the shift
lever
is
in
PARK
(P).
The key should come out only in
LOCK.
Parking Brake and Automatic Transmission
PARK
(P)
Mechanism Check
When you are doing this check, your vehicle
could begin to move. You or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle
in
case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin
to
move.
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot on the regular brake, set the
parking brake.
0
To check the parking brake’s holding ability:
With the engine running and transmission in
NEUTRAL
(N),
slowly remove
foot
pressure
from
the regular brake pedal.
Do
this until the vehicle is
held by the parking brake only.
0
To check the PARK
(P)
mechanism’s holding ability:
With the engine running, shift
to
PARK
(P). Then
release all brakes.
7-46

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