GMC SIERRA 1997 Owners Manual

Page 101 of 436

Parking Brake
To set the parking brake, hold the regular brake pedal
down with your right foot. Push down the parking brake
pedal with your left foot.
If the ignition is on, the brake system warning light will
come on.
To release the parking brake, hold the regular brake
pedal down.
If the ignition is on when the parking brake is released,
the brake system warning light will go
off.
I NOTICE:
I
Driving with the parking brake on can cause
your rear brakes to overheat. You may have to replace them, and you could also damage other
parts
of your vehicle. Always check to be sure
your parking brake is fully released before
you drive.
If you are towing a trailer and are parking on any hill,
see “Towing
a Trailer’’ in the Index. That section shows
what to do first to keep the trailer from moving.
If you have
a 3500 HD model, it is recommended that
the propshaft mounted parking brake be burnished as
part of the new vehicle break-in. The parking brake
will work best after
it has been burnished following
these instructions.
Make
10 stops, using the parking brake foot pedal, from
20 mph (32 kmh) about 2 112 miles (4 km) apart. In
between stops, drive the vehicle at
20 mph (32 kmk).
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Page 102 of 436

Shifting Into PARK (P) (Automatic
Transmission
Models Only)
It can be danL *ous to get out of your vehicle if
the shift lever
is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
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, even
when you’re on fairly level ground, use the steps
that follow. If you have four-wheel drive and
your transfer case
is in NEUTRAL (N), your
vehicle will be free to roll, even if your shift lever
is in PARK (P). So, be sure the transfer case is
in a drive gear
-- not in NEUTRAL (N). If
you’re pulling a trailer, see “Towing
a Trailer”
in the Index.
2. Move the shift lever into PARK (P) position like this:
Pull the lever toward you.
1. Hold the brake pedal down with your right foot and
set the parking brake.
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Page 103 of 436

0 Move the lever up as far as it will go.
3. If you have four-wheel drive, be sure the transfer
case is in a drive gear
-- not in NEUTRAL (N).
4. Turn the ignition key to LOCK.
5. Remove the key and take it with you. If you can
leave your vehicle with the ignition key in your
hand, your vehicle
is in PARK (P).
Leaving Your Vehicle With the Engine
Running (Automatic Transmission
Models Only)
It can be dangerous to leave your vehicle with
the engine running. Your vehicle could move
suddenly if the shift lever is not fully in PARK (P)
with the parking brake firmly set.
If you have
four-wheel drive with
a manual transfer case
shift lever and your transfer case is in
NEUTRAL
(N), your vehicle will be free to roll,
even if your shift lever is in PARK
(P). So be sure
the transfer case is in
a drive gear -- not in
NEUTRAL
(N). And, if you leave the vehicle with
the engine running, it could overheat and even
catch fire.
You or others could be injured. Don’t
leave your vehicle with the engine running unless
you have
to.
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Page 104 of 436

If you have to leave your vehicle with the engine
running, be sure your vehicle is in PARK (P) and the
parking brake is firmly set before you leave
it. After you
move the shift lever into PARK (P), hold the regular
brake pedal down. Then,
see if you can move the shift
lever away from PARK (P) without first pulling it
toward
you. If you can, it means that the shift lever
wasn’t fully locked into PARK
(P).
Torque Lock (Automatic Transmission)
If you are parking on a hill and you don’t shift your
transmission into PARK (P) properly, the weight of the
vehicle may put
too much force on the parking pawl in
the transmission. You may find
it difficult to pull the
shift lever out of PARK (P). This is called “torque lock.”
To prevent torque lock, set the parking brake and then
shift into PARK (P) properly before you leave the
driver’s seat.
To find out how, see “Shifting Into
PARK (P)” in the Index.
When you are ready
to drive, move the shift lever out of
PARK (P)
before you release the parking brake.
If torque lock does occur, you may need to have another
vehicle push yours a little uphill
to take some of the
pressure from the parking pawl in the transmission,
so
you can pull the shift lever out of PARK (P).
Shifting Out of PARK (P)
(Automatic Transmission)
Your vehicle has a brake-transmission shift interlock
system. You have
to fully apply your regular brakes
before you can shift from PARK (P) when the ignition
is in RUN. See “Automatic Transmission” in the Index.
If you cannot shift out of PARK (P), ease pressure on
the shift lever and push the shift lever all the way up
into PARK (P) as you maintain brake application. Then,
move the shift lever to any 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 key to OFF,
2. Apply and hold the brake until the end of Step 4.
3. Shift to NEUTRAL (N).
4. Start the vehicle and shift to the drive gear you want.
5. Have the brake-transmission shift interlock system
fixed as soon as you can.
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Page 105 of 436

Parking Your Vehicle (Manual
Transmission Models Only)
Before you get out of your vehicle, put your manual
transmission
in REVERSE (R), turn off the engine, and
firmly apply the parking brake.
If you have four-wheel drive, be sure your transfer case
is in a drive gear. Your vehicle could roll
if it isn’t.
If you are parking
on a hill, or if you are pulling a
trailer, see “Towing a Trailer” in the Index.
Parking Over Things That Burn
I
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Page 106 of 436

Engine Exhaust
Engine exhaust can kill. It contains the gas
carbon monoxide
(CO), which you can’t see or
smell.
It can cause unconsciousness and death.
You might have exhaust coming in if:
0 Your exhaust system sounds strange
0 Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
0 Your vehicle was damaged when driving over
high points on the road or over road debris.
0 Repairs weren’t done correctly.
0 Your vehicle or exhaust system had been
If you ever suspect exhaust is coming into
your vehicle:
Drive it only with all the windows down to
0 Have your vehicle fixed immediately,
or
different.
modified improperly.
blow out any
CO; and
Running Your Engine While You’re
Parked (Automatic Transmission)
It’s better not to park with the engine running. But if
ever have
to, here are some things to know.
I
Idling the engine with the air system control
off could allow dangerous exhaust into
your vehicle (see the earlier Caution under
‘(Engine Exhaust”).
Also, idling in a closed-in place can let deadly
carbon monoxide
(CO) into your vehicle even if
the fan switch is at the highest setting. One place
this can happen
is a garage. Exhaust -- with
CO -- can come in easily. NEVER park in a
garage with the engine running.
Another closed-in place can be a blizzard. (See
“Blizzard” in the Index.)
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Page 107 of 436

A CAUTION:
It can be dangerous to get out of your vehicle if
the shift lever
is not fully in PARK (P) 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’ve left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle won’t move, even when you’re
on fairly
level ground, always set your parking brake and
move the shift lever to
PARK (P).
If you have four-wheel drive and your transfer case is in
NEUTRAL (N), your vehicle will be free to roll, even if
your shift lever is in PARK (P).
So, be sure the transfer
case
is in a drive gear -- not in NEUTRAL (N). Always
set your parking brake. Follow the proper steps
to be
sure your vehicle won’t move. See “Shifting Into
PARK
(P)” in the Index.
If you’re pulling a trailer,
see “Towing a Trailer” in
the Index.
Windows
Manual Windows
Turn the hand crank on each door to raise or lower
manual windows.
Power Windows (If Equipped)
Regular and Extended Cab
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Page 108 of 436

Crew Cab
If you have the optional power windows, the controls
are on each
of the side doors.
The driver’s door has a switch for the passenger
windows as well. Your power windows will work when
the ignition has been turned to ACCESSORY or RUN. Press the rear
of the switch with the power window
symbol on it to lower the window.
Press the front of the switch with the power window
symbol on it to raise the window.
The driver’s window also has
an express down feature
that allows the window to be lowered without holding
the switch. Press and hold the side of the window switch
marked AUTO
for one second to activate the express
down mode. The express down mode can be canceled at
any time by pressing the opposite side of the switch. To
open the window partway, lightly tap the switch until the
window is at the desired position.
Lockout Switch (Crew Cab)
If you have a Crew Cab and power windows, the power
window switch has a lockout feature. This feature
prevents the rear windows from operating when the
front driver’s side switch is
in LOCK. The windows can
still be operated using the driver’s window switch.
When the switch is moved to
NORM, the rear power
windows will operate again.
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Page 109 of 436

Swing-Out Windows (Extended Cab)
To open a rear swing-out
window, just flip the
latch open and swing the
glass out.
The latch will catch when the window is fully open and
hold the window in the open position.
Sliding Rear Window (If Equipped)
To open the sliding rear window, unlock the latch lever
by moving the lever toward the driver’s side. Release
the lever from the latch plate and slide the window
toward the driver’s side
of the vehicle.
To close the window, slide the window toward the
passenger’s side of the vehicle. The latch lever will
automatically snap locked on the latch plate. Try to open
the window without releasing the latch lever to be sure
the window is in the locked position.
Horn
On air bag-equipped vehicles, press the air bag module
in the center
of the steering wheel to sound the horn.
On vehicles not equipped with an air bag,
psS the pad
in the center of the steering wheel to sound the horn.
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Page 110 of 436

Tilt Wheel (If Equipped)
A tilt steering wheel allows
you to adjust the steering
wheel before you drive.
You can also raise
it to the highest level to give your
legs more room when
you enter and exit the vehicle.
To tilt the wheel, hold the steering wheel and pull the
lever. Move the steering wheel to a comfortable level,
then release the lever to lock the wheel in place.
lhrn SignaVMultifunction Lever
I, WIPER MIST-
The lever on the left side of the steering column
includes your:
Turn Signal and Lane Change Indicator,
Headlamp High/Low Beam Changer,
Windshield Wipers,
Windshield Washer and
0 Cruise Control (If Equipped).
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