2003 GMC SIERRA DENALI ECO mode

A reading in the low pressure zone may be caused by a
dangerously low oil level or some other problem
causing
low oil pressure. Check your oil as soon as
possible. See
DIC Warnings and Messages on
page 3-53
and ‘vgine Oil on page 5-13.
Don’t keep driving if the oil pressure is low. If
you do, your engine can become
so hot that it
catches fire. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice: Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
Cruise Control Light
The cruise light comes on
whenever you set your
cruise control. See “Cruise
Control” under
Turn
SignaVMultifunction Lever
on page 3-5.
Tow/HauI Mode Light
This light is displayed
when the tow/haul mode
has been activated.
For more information, see
Towing a Trailer on
page 4-5
I.
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Driver Information Center (DIC)
The DIC display is located on the instrument panel
cluster above the steering wheel. The DIC can display
information such as the trip odometer, fuel economy and
personalization features.
A (Trip Information): This button will display the
odometer, personal trip odometer, business trip
odometer, hourmeter, annual log and the timer.
B (Fuel Information): This button will display the
current range, average fuel economy, instant fuel
economy and engine oil life.
C (Personalization): This button will change personal
options available on your vehicle.
D (Select): This button resets certain functions and
turns
off or acknowledges messages on the DIC.
If your vehicle is not equipped with the DIC steering
wheel buttons you will not have all of the features listed
above, and you will turn off,
or acknowledge DIC
messages by using the trip odometer reset stem located
on the instrument panel cluster.
DIC Operation and Displays
The DIC comes on when the ignition is on. After a short
delay the DIC will display the current driver and the
information that was last displayed before the engine
was turned
off.
If a problem is detected, a warning message will appear
on the display. Pressing the select button will
acknowledge any current warning or service messages.
The DIC has different modes which can be accessed
by pressing the four buttons on the DIC. These buttons
are trip information, fuel information, personalization
and select. The button functions are detailed in
the following.
If your vehicle is not equipped with the DIC steering
wheel buttons not all of the features listed will be
available on your vehicle.
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To reset the personal or business trip information, do
the following: press and hold select button for two
seconds while in one of the personal or business trip
modes. This will reset all of the information for the
personal or business trip, or
if your vehicle does not
have the DIC steering wheel control buttons, press the
reset stem on the instrument panel cluster.
You can also reset the PERSONAL:
XX MI, or
BUSINESS:
XX MI, while they are displayed by pressing
the reset stem on the cluster.
If you press and hold
the reset stem or select button for four seconds,
the display
will show the distance traveled since the last
ignition cycle for the personal or business trip.
Season Odometer
Press the trip information button, or the trip odometer
reset step, until SEASON ODOMETER appears on
the display. This shows the total distance the vehicle has
been driven in either miles or kilometers. Pressing the
reset stem located on the instrument cluster with
the vehicle
off will also display the season odometer.
Hourmeter
Press the trip button to scroll to the hourmeter. The
hourmeter shows the total number of hours the engine
has run. Pressing the reset stem on the instrument
cluster will also display the hourmeter after the season
odometer is displayed.
Annual Log
Press the trip button, or the reset stem on the instrument
panel cluster, to scroll to the annual
log. The annual
log shows the mileage accumulated since
it was
last reset.
Po reset the annual log, press and hold the
select button, or the trip odometer reset stem for
approximately two seconds.
Timer
The DIC can be used as a stopwatch. Press the select
button, or the trip odometer reset stem, while TIMER
is displayed to start the timer. The display will show the
amount of time that has passed since the timer was
last reset (not including time the ignition is
off). Time will
continue to be counted as long as the ignition is on,
even
if another display is being shown on the DIC. The
timer will record up to 99 hours, 59 minutes and
59 seconds (99:59:59) after which the display will roll
back to zero.
To stop the counting of time, press the select button
briefly while TIMER is displayed.
To reset the timer to zero, press and hold the select
button, or the trip odometer reset stem, while TIMER is
displayed.
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Display Language Select Button
To select your personalization for display language,
press the select button while DISPLAY LANGUAGE is
displayed on the DIC. Pressing the select button
will scroll through the following languages:
English
French
0 Spanish
You can also scroll through the different languages by
pressing and holding the trip reset stem for four
seconds, as long as you are in the season
odometer mode.
Choose one of the three options and press the
personalization button while it
is displayed on the DIC to
select it.
If you accidentally choose a language that you don’t
want or understand, press and hold the personalization
button and the trip information button at the same
time. The DIC will begin scrolling through the languages
in their particular language. English will be in English,
French
will be in French and so on. When you see
the language that you would like, release both buttons.
The
DIC will then display the information in the
language you chose. The
select button is used to reset certain functions and
turn
off or acknowledge messages on the DIC display.
The select button also toggles through the options
available in each personalization menu. For example, this
button will reset the trip odometers, turn
off the FUEL
LEVEL LOW message, and toggle through the languages
you can select the DIC
to display information in.
DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to
correct the condition. If there is more than one message
that needs to be displayed they will appear one after
another. Some messages may not require immediate
action but you should press the select button to
acknowledge that you received the message and clear it
from the display because they are more urgent. These
messages require action before they can be removed
from the DIC display. The following are the possible
messages that can be displayed and some information
about them.
3-53

CHANGE ENGINE OIL
This message is displayed when the engine oil needs to
be changed.
When you change the engine oil, be sure to reset the
CHANGE ENGINE
OIL message. See Engine Oil, When
to Change
under Engine Oil on page 5-13.
OIL LIFE RESET
This message will appear on the display for about 10
seconds after resetting the change engine oil message.
LOW COOLANT LEVEL
If the engine coolant level is low, this message will
appear on the DIC. Adding coolant will clear the
message.
ENGINE COOLANT HOT
If the cooling system temperature gets hot, this message
will appear in the DIC. Stop the vehicle and let the
engine idle in PARK (P) to allow the coolant to reach a
safe temperature. This message will clear when the
coolant temperature drops to safe operating
temperature.
ENGINE OVERHEATED
If the engine cooling system reaches unsafe
temperatures for operation, this message will appear in
the DIC and you will hear a chime. Stop and turn
off
3-54
the vehicle as soon as it is safe to do so to avoid
severe damage. This message will clear when the
engine has cooled to a safe operating temperature.
OIL PRESSURE LOW
If low oil pressure levels occur, this message will be
displayed on the DIC and a chime will sound. Stop the
vehicle as soon as safely possible and do not operate
it until the cause of the low oil pressure has been
corrected. Check your oil as soon as possible and have
your vehicle serviced.
REDUCED ENGINE POWER
This message is displayed when the cooling system
temperature gets too hot and the engine further enters
the engine coolant protection mode.
See
Engine Overheating on page 5-27 for further
information.
BATTERY NOT CHARGING
if the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Pressing the
select button will acknowledge this message and clear it
from the DIC display.

TRANSMISSION HOT
If the transmission fluid temperature becomes high, the
message center will display this message.
When the transmission enters the protection mode, you
may notice a change in the transmission shifting
patterns. When the transmission fluid temperature
returns to normal, the display will turn
off and the
transmission shifting patterns will return
to normal.
Nofice: If you keep driving your vehicle with the
transmission
TRANS FLUID HOT message
displayed, you can damage the transmission.
This
could lead to costly repairs that may not be covered
under your warranty. The
following situations can cause the transmission to
operate at higher temperatures:
Towing a trailer
Hot outside air temperatures
0 Hauling a large or heavy load
Low transmission fluid level
High transmission fluid level
transmission oil cooler.
0 Restricted air flow to the radiator and the auxiliary
A temporary solution to hotter transmission operating
temperatures may be to let the transmission
cool down.
If the transmission is operated at higher temperatures
on a frequent basis, see
Scheduled Maintenance
on page 6-5 for the proper transmission maintenance
intervals.
3-59

DlSP (Display): Push this knob to switch the display
between radio station frequency and time. Time display
is available with the ignition turned off.
For RDS, push this knob to change what appears on
the display while using RDS. The display options
are station name, RDS station frequency, PTY and the
name of the program
(if available).
For XMTM (USA only,
if your radio is equipped with
XMTM Satellite Radio Service), push this knob while in
XM mode to retrieve various pieces of information
related to the current song or channel. By pressing and
releasing this knob, you may retrieve four different
categories of information: Artist, Song Title, Category
or
PTY, Channel NumberKhannel Name.
For DAB (Canada only,
if your radio is equipped with
DAB), pushing this knob switches the display between
channel name and PTY name.
To change the default on the display, push this knob
until you see the display you want, then hold the knob
for two seconds. The radio will produce one beep
and selected display will now be the default.
Finding a Station
BAND: Press this button to switch between AM, FM,
FM2, or XM1, XM2 (USA only,
if your radio is equipped
with XMTM Satellite Radio Service) or DABl, DAB2
(Canada only,
if your radio is equipped with DAB). The
display will show your selection.
TUNE: Turn this knob to choose radio stations.
For DAB (Canada only,
if your radio is equipped with
DAB), the TUNE knob allows
you to navigate the
DAB frequency range. Turning this knob will tune up or
tune down the range. The radio will display the letter
L with a number next to it (1 through 23). Each L number
refers to a frequency and there can be multiple
stations contained in one frequency. It may also take a
few seconds, once you have tuned to a frequency,
for that frequency to gather all of the stations.
Depending on how many stations are within a frequency,
with every tune up or down, you may be tuning to
another station or to another frequency. The display will
show your selections.
4 SEEK b : Press the right or the left arrow to seek
to the next or to the previous station and stay there.
The radio will seek only to stations that are in the
selected band and only to those with a strong signal.
3-64

Playing a Cassette Tape
Your tape player is built to work best with tapes that are
up
to 30 to 45 minutes long on each side. Tapes
longer than that are so thin they may not work well in
this player. The longer side with the tape visible should
face
to the right. If the ignition is on, but the radio is
off, the tape can be inserted and will begin playing. A
tape symbol is shown on the display whenever a tape is
inserted. If you hear nothing but a garbled sound, the
tape may not be in squarely. Press the eject symbol
to
remove the tape and start over.
While the tape is playing, use the VOL, AUDIO and
SEEK controls just as you do for the radio. The display
will show TAPE and an arrow showing which side of
the tape is playing.
If you want to insert a tape while the ignition is
off, first
press the eject symbol or DISP.
If an error appears on the display, see “Cassette Tape
Messages” later in this section.
1 PREV (Previous): Your tape must have at least three
seconds of silence between each selection for previous
to work. Press this pushbutton to go to the previous
selection on the tape
if the current selection has been
playing for less than three seconds. If pressed when the
current selection has been playing from 3
to 13 seconds,
it will go
to the beginning of the previous selection or
the beginning
of the current selection, depending upon
the position on the tape. If pressed when the current
selection has been playing for more than 13 seconds, it
will go
to the beginning of the current selection.
SEEK and a negative number will appear on the display
while the cassette player is in the previous mode.
Pressing this pushbutton multiple times will increase the
number of selections to be searched back, up to
-9.
2 NEXT: Your tape must have at least three seconds of
silence between each selection for next
to work.
Press this pushbutton
to go to the next selection on the
tape.
If you press the pushbutton more than once,
the player will continue moving forward through the tape.
SEEK and a positive number will appear on the
display.
3 REV (Reverse): Press this pushbutton to reverse the
tape rapidly. Press it again
to return to playing speed.
The radio will play while the tape reverses. The
station frequency and REV will appear on the display.
You may select stations during reverse operation
by using the TUNE and SEEK.
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