2007 CHEVROLET KODIAK ignition

Exhaust Restrictor
(Engine Warm-Up)
Exhaust Restrictor
If your vehicle has a Isuzu 6H or Caterpillar®
Diesel Engine, it may have a feature called
an Exhaust Restrictor (NPE), which uses an air
actuated valve in the exhaust system to restrict
exhaust gas flow which enhances the engine and
heater warm-up.
Automatic Quick Warm-Up
If your vehicle has a DURAMAX®6600 engine, it
has a feature called an Automatic Quick
Warm-Up, which uses the turbocharger to restrict
the exhaust gas flow which enhances the
engine and heater warm-up.
In both systems, exhaust restrictor or automatic
quick warm-up, the cold temperature high
idle feature elevates the engines idle speed, up to
1500 rpm, and restricts the exhaust gas flow,
when outside temperatures are below 32°F (0°C),
and the engine coolant temperature is below
certain levels. This feature enhances heater
performance by raising the engine coolant
temperature faster.For all engines this feature is already turned on.
The automatic quick warm-up on the DURAMAX
®
engine can be turned off and on by doing the
following procedure:
1. Turn the ignition to RUN, with the vehicle off.
2. Press the accelerator pedal to the floor
and hold it while quickly pressing and
fully releasing the brake pedal three times in
less than eight seconds.
3. Release the accelerator pedal and start the
engine. The green exhaust brake/restrictor
light below the radio controls will be lit
for 10 seconds.
If this feature is turned off, by doing the
procedure described previously, and then the
engine is started, the exhaust brake/restrictor
light will flash for 10 seconds and then it
will turn off.
When the engine is started, it will slowly increase to
the high idle speed after a delay of a few seconds;
up to about two minutes. For this method to work
properly there must be no throttle or brake pedal
faults, and the throttle pedal must not fall below
75 percent of wide open throttle while pressing the
brake pedal.
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•If the engine coolant temperature gage needle
goes into the hot area on the gage, stop the
engine and find the cause of the overheating.
SeeEngine Coolant Temperature Gage on
page 173for more information.
•If you have air brakes, the dual-needle air
pressure gage should read at least 115 psi
(790 kPa) for both service systems before you
try to move the vehicle. When air pressure
is below 60 psi (420 kPa), the LOW AIR light
will come on and you will hear a tone
alarm. SeeBrake System Warning Light on
page 169for more information. If the pressure
does not build up or drops during warm-up,
stop the engine and find the cause before you
try to move the vehicle. Recommended air
pressure before driving is 120 psi (830 kPa).
SeeAir Pressure Gage on page 183for
more information.
•The charging system light should come on
when the ignition key is turned to RUN or
START and should go out when the engine is
running above idle. If the light does not go
out or comes back on during normal engine
operation, have the charging system checked
right away. (This light tells you if thegenerator is not charging; it does not reflect
the condition of the battery.) SeeCharging
System Light on page 167for more
information.
•The voltmeter charge indicator gage tells you
the condition of your battery’s charge. The
gage should be in the center area during
engine operation. The red area on the
left indicates an undercharge condition; the
red area on the right indicates an overcharge.
If the gage is in either red area, have the
battery and charging system checked
right away. SeeVoltmeter Gage on page 168
for more information.
Notice:Do not allow the engine to operate at
low idle for more than ve minutes. This
can cause low engine operating temperatures
which can affect engine operation and
reduce engine life. Engine idle speed should
be increased to 1200 rpm whenever extended
idle is required. Once started, the engine
should be placed under load to allow the
engine coolant temperature to reach 150°F
(66°C) before shutting off the engine.
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If your vehicle has
four-wheel drive, the
transfer case knob
is located to the right of
the steering wheel
on the instrument panel.
Use this knob to shift
into and out of
four-wheel drive.
An indicator light shows you which position the
transfer case is in. The indicator lights come
on briefly when you turn on the ignition and
one stays on. If the lights do not come on, you
should take your vehicle to your dealer for service.
An indicator light flashes while shifting the
transfer case. It will remain on when the shift is
complete. If for some reason the transfer
case cannot make a requested shift, it returns to
the last chosen setting.Recommended Transfer Case Settings
Driving ConditionsTransfer Case Settings
2m4m4nN
Normal YES
Severe YES
Extreme YES
Vehicle in Tow* YES
*SeeTowing Your Vehicle on page 241for further
information.
2m(Two-Wheel High):This setting is for driving
in most street and highway situations. The
transfer case does not drive the front axle in
two-wheel drive. The front-axle spins if the front
wheel hubs are locked. Be sure to unlock the hubs
to achieve the best fuel economy.
4
m(Four-Wheel High):Use Four-Wheel High
when you need extra traction, such as on snowy or
icy roads or in most off-road situations. Be sure
the front wheel hubs are locked when you want to
drive in Four-Wheel High.
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Shifting Out of Four-Wheel Low
To shift from Four-Wheel Low to Four-Wheel High
or Two-Wheel High, your vehicle must be
stopped or moving less than 3 mph (5 km/h) with
the transmission in NEUTRAL (N) and the
engine running. The preferred method for shifting
out of Four-Wheel Low is to have your vehicle
moving 1 or 2 mph (1.6 to 3.2 km/h). Turn the knob
to Four-Wheel High or Two-Wheel High. You
must wait for the Four-Wheel High or Two-Wheel
High indicator light to stop flashing and remain
on before shifting the transmission into gear.
Notice:Shifting the transmission into gear
before the Four-Wheel High or Two-Wheel High
indicator light has stopped ashing could
damage the transfer case. To help avoid
damaging your vehicle, always wait for the
Four-Wheel High or Two-Wheel High indicator
light to stop ashing before shifting the
transmission into gear.
If the knob is turned to Four-Wheel High or
Two-Wheel High while your vehicle is in gear and/or
moving, the Four-Wheel High or Two-Wheel high
indicator light flashes for 30 seconds. It will not
complete the shift unless your vehicle is moving
less than 3 mph (5 km/h) with the transmission in
NEUTRAL (N).
Shifting Into NEUTRAL
Before shifting the transfer case to NEUTRAL, first
make sure the vehicle is parked so that it will
not roll.
1. Set the parking brake.
2. Start the vehicle.
3. Put the transmission in NEUTRAL (N).
4. Shift the transfer case to Two-Wheel High.
5. Turn the transfer case knob all of the way past
Four-Wheel Low and hold it there for a
minimum of 10 seconds. The NEUTRAL
indicator light comes on.
6. Shift the transmission to REVERSE (R) for
one second, then shift the transmission to
DRIVE (D) for one second.
7. Turn the ignition to OFF.
8. Place the transmission shift lever in
PARK. (P).
9. Turn the ignition to LOCK.
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Shifting Out of NEUTRAL
To shift the transfer case out of NEUTRAL, do the
following:
1. Set the parking brake and apply the regular
brake pedal.
2. Turn the ignition to RUN with the engine off.
3. Put the transmission in NEUTRAL (N).
4. Turn the transfer case knob to the desired
shift position (Two-Wheel High, Four-Wheel
High, Four-Wheel Low).
5. After the transfer case has shifted out of
NEUTRAL, the indicator light goes out.Notice:Driving with the parking brake on can
overheat the brake system and cause
premature wear or damage to brake system
parts. Verify that the parking brake is fully
released and the brake warning light is
off before driving.
6. Release the parking brake.
7. Start the engine and shift the transmission
lever to the desired position.
Excessively shifting the transfer case into or out of
the different modes can cause the transfer case
to enter the shift protection mode. This protects the
transfer case from possible damage and only
allows the transfer case to respond to one shift per
10 seconds. The transfer case can stay in this
mode for up to three minutes.
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To set the foot pedal parking brake, hold the
regular brake pedal down with your right foot. Push
down the parking brake pedal with your left foot.
To set the hand lever parking brake, hold the
regular brake pedal down with your right foot. Pull
up on the handle with your right hand, until it stops.
If the ignition is on when the parking brake is set,
the brake system warning light will come on.
To release the foot pedal parking brake, hold
the regular brake pedal down. Pull the brake
release handle, located just above the parking
brake pedal, to release the parking brake.
To release the hand lever parking brake, hold the
regular brake pedal down and push down on
the handle until it stops.
If the ignition is on when the parking brake is
released, the brake system warning light will
go off.Parking Brake (with Air Brakes)
If your vehicle has
air brakes, you will
have this parking brake.
It is located above
the radio in the
instrument panel.
Pulling it out applies the parking brake. The
parking brake light will come on when the air
parking brake is applied.
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Hazard Warning Flashers
The hazard warning flashers warn others. They
also let police know you have a problem.
Your front and rear turn signal lamps will flash
on and off.
The hazard warning
flasher button is located
on top of the steering
column.
The hazard warning flashers work no matter what
ignition position the key is in, and even if the
key is not in the ignition.
Press the button to make the front and rear turn
signal lamps flash on and off. Press the button
again to turn the flashers off.
When the hazard warning flashers are on, your
turn signals will not work.
Other Warning Devices
If you carry reflective triangles, you can set them up
at the side of the road about 300 feet (100 m)
behind your vehicle.
Horn
Sound the horn by pushing the center of the
steering wheel. If you have the optional air horn, it is
controlled by a cord that you will find up above and
to the left of the driver. The harder you pull on the
cord, the louder the air horn will sound. The air horn
works only after your air brake system pressure
gets up to about 115 psi (790 kPa). The air horn will
work properly unless the air brake system pressure
drops below 60 psi (415 kPa).
Tilt Wheel
A tilt wheel allows you to adjust the steering wheel
before you drive. You can raise it to the highest
level to give your legs more room when you
exit and enter the vehicle.
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Passing Another Vehicle While Using
Cruise Control
Use the accelerator pedal to increase your speed.
When you take your foot off the pedal, your
vehicle will slow down to the cruise control speed
you set earlier.
Using Cruise Control on Hills
How well your cruise control will work on hills
depends upon your speed, load and the steepness
of the hills. When going up steep hills, you may
want to step on the accelerator pedal to maintain
your speed. When going downhill, you may
have to brake or shift to a lower gear to keep your
speed down. Of course, applying the brake or
clutch takes you out of cruise control. Many drivers
find this to be too much trouble and don’t use
cruise control on steep hills.
If your vehicle is equipped with the exhaust brake
option and the exhaust brake is turned on, the
exhaust brake may come on and try to slow down
the vehicle to the set cruise control speed if the
vehicle has accelerated past the set cruise control
speed while going downhill.
Ending Cruise Control
There are four different ways to turn off the
cruise control:
•Step lightly on the brake pedal (manual and
automatic transmissions).
•Press the clutch pedal to the floor (manual
transmissions).
•Move the cruise switch to off, or
•Shift the transmission to NEUTRAL (N).
Erasing Speed Memory
When you turn off the ignition, your cruise control
set speed memory is erased.
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