2003 CHEVROLET C/K Owners Manual

2-54
Reducing Speed While Using Cruise Control
Press in the button at the end of the lever until you reach
the lower speed you want, then release it.
To slow down in very small amounts, tap the
button briefly. Each time you do this, you'll go
1 mph (1.6 km/h) slower.
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.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.

2-55
Inter-Axle Differential Lock Control
(If Equipped)
If your vehicle has this
feature, the switch is located
in the center of the
instrument panel.
If you're approaching a slippery surface where it looks
like one or even all of the wheels may start to slip, you
can press the bottom of this switch. It locks your rear
differentials so that power is transmitted equally to both
rear axles.Let up on the accelerator before you turn on your
inter
-axle differential lock. When you turn on this
control, the diff lock indicator on the center of the
instrument panel will light.
NOTICE:
Activating the inter-axle differential lock when
the rear wheels are actually spinning freely, as
they might on ice or snow, can cause you to lose
control of the vehicle. It can also damage the
axles. Turn on this control only when the wheels
are not spinning freely.

2-56
Rear Axle Differential Lock Control
(If Equipped)
If your vehicle has a
controlled traction or
locking differential axle,
the switch is located in the
center of the instrument
panel. You'll see this
control on single rear
axle vehicles.If you're approaching a slippery surface where it looks
like one or even both wheels may start to slip, you can
press the bottom of this switch. It locks your rear
differential so that power is transmitted equally to both
rear wheels.
Let up on the accelerator before you turn on your rear
axle differential lock.
NOTICE:
Activating the rear-axle differential lock when
the rear wheels are actually spinning freely, as
they might on ice or snow, can cause you to lose
control of the vehicle. It can also damage the axle.
Turn on this control only when the wheels are not
spinning freely.

2-57
Trailer Brake Hand Control Valve
(Option)
If your vehicle has this feature, it is located near the
center console on the floor.
This feature lets you apply the trailer brakes without
applying the tractor brakes. You can apply the trailer
brakes a little, or apply them all the way, if needed.
Press the trailer brake hand control valve downward to
apply the trailer brakes. Pull the hand control valve
upward to release the trailer brakes.
Use this control only when you're driving. Don't use it
for parking or to hold the rig on a hill.
CAUTION:
Using the trailer brake hand control for parking or
for holding the vehicle on a hill may not keep the
vehicle from rolling. This can happen if someone
hits the valve by accident, or if air pressure bleeds
from the system. If the vehicle rolls, you or others
could be injured. To park the vehicle or hold it on
a hill, use the parking brake properly.
Exterior Lamps
The control located to the left of the steering column
operates the exterior lamps.

2-58
The exterior lamp control has four positions:
OFF: Turning the control to this position turns off all
lamps except the Daytime Running Lamps (DRL).
(Parking Lamps): Turning the control to this
position turns on the parking lamps, together with the
following:

Marker Lamps

Taillamps

License Plate Lamps

Instrument Panel Lights
(Headlamps): Turning the control to this position
turns on the headlamps, together with the previously
listed lamps and lights.
You can switch your headlamps from low to high
beam by pulling the turn signal/multifunction lever
toward you. Pull the lever toward you again to return
to low beam.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will flicker on
and off. Have your headlamp wiring checked right away
if this ever happens.
Headlamps On Reminder (If Equipped)
If you have this system, a tone will sound when your
headlamps and/or parking lamps are turned on and your
ignition is in LOCK or ACCESSORY.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset. Fully
functional daytime running lamps are required on all
vehicles first sold in Canada.
The DRL system will make your headlamps come
on at reduced brightness when the following conditions
are met:

The ignition is on,

the exterior lamp control is off, and

the parking brake is released.
When the DRL are on, only your headlamps will be on.
The taillamps, sidemarker and other lamps won't be on.
Your instrument panel won't be lit up either.

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When it begins to get dark,
your DRL indicator light is
a reminder to turn the
headlamps on. The other
lamps that come on with
your headlamps, will also
come on.
When you turn the headlamps off, the regular lamps will
go off, and your low
-beam headlamps will change to the
reduced brightness of DRL.
To idle your vehicle with the DRL off, set the parking
brake. The DRL will stay off until you release the
parking brake.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Marker Lamp Defeat Switch
If your vehicle has this feature, you can manually blink
the marker and clearance lamps.
The marker lamp
defeat switch is located
in the instrument panel
switchbank.
Press and hold the bottom of the switch to turn off
the marker and clearance lamps. When you release
the switch, the marker and clearance lamps will come
back on.

2-60
Interior Lamps
Instrument Panel Brightness Control
This feature controls the brightness of the instrument
panel lights.
The thumbwheel for this feature is located to the right of
the exterior lamp control.
Turn the thumbwheel up to brighten the lights. When the
thumbwheel is moved to the first position, the radio
display and transmission selection display will go to full
intensity. The instrument panel cluster will also be dimly
lit. Moving the thumbwheel up to the next position will
activate the interior dome lamps.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by moving the
thumbwheel, located to the right of the exterior lamp
control, all the way up to the second position. In this
position, the dome lamps will remain on whether a door
is open or closed.
You can use the dome override button to set the dome
lamps to automatically come on when a door is open, or
to remain off.
The dome override button is located below the exterior
lamp control.
If the dome override button is pushed in, the dome
lamps will not come on. Use this feature when you want
to leave your door(s) open for an extended period of
time and do not want to run the battery down.
If the dome override button is in the out position, the
interior lamps will work as usual.

2-61 Illuminated Entry
The delayed illumination feature will allow you to enter
or exit your vehicle with the lights on for about 20
seconds, after the door is closed or the ignition is cycled.
Reading Lamps (If Equipped)
If your vehicle has reading lamps, press the button next
to the lamp to turn the lamp on or off.
Mirrors
Inside Rearview Mirror (If Equipped)
Pull the tab under the mirror toward you to reduce glare
from headlamps behind you after dark. Push the tab
away from you to restore the mirror to the daytime
position.
Outside Rearview Mirrors
Adjust the outside rearview mirrors so you can see a
little of the side of your vehicle, and the area beside
your vehicle from a comfortable driving position. Some
mirrors can be folded in to enter narrow passageways.