1997 GMC JIMMY Owner's Manual

Shifting from 4LO to 4HI or 2HI
To shift from 4LO to 4HI or 2H1, your vehicle must be
stopped or moving
less than 3 mph (4.8 kndh) with the
transnJission
in NEUTRAL (N) or the clutch pedal
engaged. The preferred method for shifting out of
4LO is to have your vehicle moving
1 to 2 mph (1.6 to
3.2 kdh). Press and release the 4HI switch. You must
wait for the
4HI indicator light to stop flashing and
remain illuminated before shifting your transmission
into gear
or releasing the clutch pedal.
If the 4Hi switch is pressed when your vehicle is in gear
and/or moving. the 4HI indicator light
will flash for
30 seconds but not complete the shift unless the
vehicle is moving slower than
3 nlph (4.8 km/h) and
the transmission is in NEUTRAL (N) or the clutch
pedal engaged.
On automatic transmission equipped vehicles. if your
transfer case does not
shift into 4H1, your transmission
indicator switch
may require adjustment. With your
transmission
in NEUTRAL (N), press and release the
4HI switch. While the 4HI indicator light is flashing,
shift your transmission into PARK
(P). Wait until the
4HI indicator light remains illuminated before shifting
your transmission into gear. This
will get you into 4H1,
but you should take your vehicle in for service to restore
norrnal operation.
2-2s

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.
NOTICE:
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.
If you are towing a trailer and you must park on a hill,
see "Towing a Trailer" in the Index. That section shows
what to
do first to keep the trailer from moving.
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Shifting Into PARK (P) (Automatic
Transmission
Models Only)
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.
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 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). If you’re pulling a trailer, see
“Towing a Trailer” in the Index.
Column Shift Lever
1. Hold the brake pedal down with your right foot and
set the parking brakc.
2. Move the shift lever into PARK (P) position like this:
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0 Move the lever up as far as it will go.
3. If you have four-wheel drive with a manual transfer
case shift lever-. be sure the transfer case is in a drive
gear
-- not in NEUTRAL (N).
4. Turn the ignition key to LOCK.
5. Retnove the key and take it with you. If you can
leave your vehicle with the key, your vehicle is in
PARK (P).
Console Shift Lever
1. Hold the brake pedal down with your right foot and
set the parking brake.
2. Move the shift lever into PARK (P) position like this:
0 Hold in the button on the lever.
0 Push the lever all the way toward the front of
the vehicle.
3. Turn the ignition key to LOCK.
4. Remove the key and take it with you. If you can leave
your vehicle with the key. your vehicle
is in PARK (P).
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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 suddenlJ
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.
If you have to leave your vehicle with the engine
running, be sure your vehicle
is in PARK (P) and yo~~r parking brake
is firmly set before you leave
it. After
you've moved the shift lever into the PARK
(P)
position, 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 (or pressing the
button on
a console shift lever). If YOLI 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 br'ke 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) kc$~w 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
~OLI can pull the shift lever out of PARK (P).
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Shifting Out of PARK (P)
(Automatic Transmission)
Your vehicle has a brake-transmission shift interlock.
YOLI have to fully apply your regular brake before you
can shift
from PARK (PI when the ignition is in the
RUN position. See "Automatic Transmission Operation"
in the Index.
If you cannot shift out of PARK (P)? ease pressure on
the shift lever
-- push the shift lever all the way into
PARK (P) as you maintain brake application. Then
move the shift lever into the gear you want (you must
press the shift lever button
if you have the console
shift lever).
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 3.
3. Shift to NEUTRAL (N).
4. Start the vehicle and then shift to the drive gear
you want.
5. Have the vehicle fixed as soon as you can.
Parking Your Vehicle (Manual
Transmission Models Only)
Before you get out of your vehicle, turn off your engine,
put your- manual transmission in REVERSE (R) and
firmly apply the parking brake.
If you have four-wheel drive with it manual transfer case
shift lever, 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 your vehicle is pulling
a trailer, see "Towing a Trailer" in the Index.
2-33

Parking Over Things That Burn Engine Exhaust
I,
Things that can burn could touch hot exhaust
parts under your vehicle and ignite. Don’t park
over papers, leaves, dry grass or other things that
can burn.
J
‘
h CAUTION:
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:
Your exhaust system sounds strange
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
Your vehicle was damaged when driving
over high points on the road or over
road debris. or
different.
Repairs weren’t done correctly.
0 Your vehicle or exhaust system had been
modified improperly.
If you ever suspect exhaust is coming into
your vehicle:
0 Drive it only with all the windows down to
0 Have your vehicle fixed immediately.
blow
out any
CO; and
2-34

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.
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.
l (See “Blizzard” in the Index.)
I-
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 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). 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.
2-35