2008 GMC SIERRA display

Notice:Before adding any sound equipment to
your vehicle, such as an audio system, CD player,
CB radio, mobile telephone, or two-way radio, make
sure that it can be added by checking with your
dealer/retailer. Also, check federal rules covering
mobile radio and telephone units. If sound
equipment can be added, it is very important to do
it properly. Added sound equipment may interfere
with the operation of your vehicle’s engine, radio, or
other systems, and even damage them. Your
vehicle’s systems may interfere with the operation
of sound equipment that has been added.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, the audio system can be
played even after the ignition is turned off. SeeRetained
Accessory Power (RAP) on page 2-23for more
information.Setting the Clock
AM-FM Radio with Optional CD Player
If your vehicle has an AM/FM radio with an optional
CD player, it has a
H(clock) button for setting the time.
With these types of radios, the clock can be set with
either the radio turned on or off.
Set the time by following these steps:
1. Press the
Hbutton until the hour numbers begin
ashing on the display. Press the
Hbutton a
second time and the minute numbers begin ashing
on the display. Press the
Hbutton a third time
and the 12HR or 24HR time format begins ashing.
2. While either the hour or the minute numbers
are ashing, turn the
fknob, located on the upper
right side of the radio faceplate, clockwise or
counterclockwise to increase or decrease the time.
While the 12HR or 24HR time format is ashing,
turn the
fknob clockwise or counterclockwise
to select the default time settings.
3. Press the
Hbutton again until the clock display
stops ashing to set the currently displayed time;
otherwise, the ashing stops after ve seconds and
the current time displayed will be automatically set.
3-81

MP3 Radios with a Single CD or a
Single CD and DVD Player
If your vehicle has a radio with a single CD or a CD and
DVD player, it has a
Hbutton for setting the time
and date.
To set the time and date, follow the instructions:
1. Press the
Hbutton and the HR, MIN, MM, DD,
YYYY (hour, minute, month, day, and year)
displays.
2. Press the pushbutton located under any one of the
labels that you want to change. Every time the
pushbutton is pressed again, the time or the date if
selected, increases by one.
Another way to increase the time or date, is to
press the right
¨SEEK arrow or the\
FWD (forward) button.
To decrease, press the left©SEEK arrow or
the
sREV (reverse) button. You can also
turn the
fknob, located on the upper right side
of the radio, to adjust the selected setting.
Changing the Time and Date Default
Settings
You can change the time default setting from 12 hours
to 24 hours or change the date default setting from
month/day/year to day/month/year.
To change the time or date default settings, follow these
instructions:
1. Press the
Hbutton and then the pushbutton
located under the forward arrow that is currently
displayed on the radio screen until the time
12H (hour) and 24H (hour), and the date MM/DD
(month and day) and DD/MM (day and month)
are displayed.
2. Press the pushbutton located under the desired
option.
3. Press the
Hbutton again to apply the selected
default, or let the screen time out.
3-82

MP3 Radio with a Six-Disc CD Player
If your vehicle has a radio with a six-disc CD player, the
radio has a MENU button instead of the
Hbutton to
set the time and date.
To set the time and date, follow these instructions:
1. Press the MENU button.
2. Once the
Hoption displays, press the pushbutton
located under that label. The HR, MIN, MM, DD,
YYYY (hour, minute, month, day, and year)
displays.
3. Press the pushbutton located under any one of the
labels that you want to change. Every time the
pushbutton is pressed again, the time or the date if
selected, increases by one.
Another way to increase the time or date, is to
press the right
¨SEEK arrow or the\
FWD (forward) button.
4. To decrease, press the left
©SEEK arrow or the
sREV (reverse) button. You can also turn thef
knob, located on the upper right side of the radio,
to adjust the selected setting.
Changing the Time and Date Default
Settings
You can change the time default setting from 12 hours
to 24 hours or change the date default setting from
month/day/year to day/month/year.
To change the time or date default settings, follow these
instructions:
1. Press the MENU button. Once the
Hoption
displays, press the pushbutton located under
the forward arrow that is currently displayed on the
radio screen until the 12H (hour) and 24H (hour),
and the date MM/DD (month and day) and DD/MM
(day and month) displays.
2. Press the pushbutton located under the desired
option.
3. Press the MENU button again to apply the selected
default, or let the screen time out.
3-83

Radio Data System (RDS)
The audio system has a Radio Data System (RDS). The
RDS feature is available for use only on FM stations
that broadcast RDS information. This system relies upon
receiving specic information from these stations and
only works when the information is available. While the
radio is tuned to an FM-RDS station, the station
name or call letters displays. In rare cases, a radio
station could broadcast incorrect information that causes
the radio features to work improperly. If this happens,
contact the radio station.
Playing the Radio
O
(Power/Volume):Press to turn the system on
and off.
Turn clockwise or counterclockwise to increase or
decrease the volume.
4(Information) (AM-FM Radio):Press to switch the
display between the radio station frequency and
the time. While the ignition is off, press this button to
display the time.
H(Clock) (AM-FM Radio):Your radio may have a
clock button for setting the time. With this type of radio,
the clock can be set with either the radio turned on
or off. SeeSetting the Clock on page 3-81for more
information.Speed Compensated Volume (SCV):Radios with
Speed Compensated Volume (SCV) automatically
adjusts the radio volume to compensate for road and
wind noise as your vehicle’s speed changes while
driving, so that the volume level stays consistent.
To activate SCV:
1. Set the radio volume to the desired level.
2. Press the MENU button to display the radio
setup menu.
3. Press the pushbutton under the AUTO VOLUM
(automatic volume) label on the radio display.
4. Press the pushbutton under the desired Speed
Compensated Volume setting (OFF, Low, Med,
or High) to select the level of radio volume
compensation. The display times out after
approximately 10 seconds. Each higher setting
allows for more radio volume compensation at faster
vehicle speeds.
Finding a Station
BAND:Press to switch between AM, FM, or XM™
(if equipped). The selection displays.
f(Tune):Turn to select radio stations.
©SEEK¨:Press either arrow to go to the previous
or to the next station and stay there.
3-86

To scan stations, press and hold either arrow for a
few seconds until a beep sounds. The radio goes to a
station, plays for a few seconds, then goes to the
next station.
For AM-FM Radio, the station frequency ashes while
the radio is in the scan mode.
Press either arrow again to stop scanning.
The radio only seeks and scans stations with a strong
signal that are in the selected band.
For the AM-FM Radio, scan presets within the current
selected band by pressing and holding either seek arrow
for four seconds until a double beep sounds. The
radio goes to a stored preset, plays for a few seconds if
a strong signal is present, then goes to the next
stored preset. The station frequency ashes while the
radio is in the scan mode.
4(Information) (XM™ Satellite Radio Service, MP3,
and RDS Features):Press to display additional
text information related to the current FM-RDS or XM™
station, or MP3 song. A choice of additional information
such as: Channel, Song, Artist, and CAT (category)
can display. Continue pressing to highlight the desired
label, or press the pushbutton positioned under any one
of the labels and the information about that label
displays.
When information is not available, No Info displays.
Setting Preset Stations (AM-FM Radio)
If your radio does not have XM™, up to 18 stations
(six FM1, six FM2, and six AM), can be programmed on
the six numbered pushbuttons, by performing the
following steps:
1. Turn the radio on.
2. Press BAND to select FM1, FM2, or AM.
3. Tune in the desired station.
4. Press and hold one of the six numbered
pushbuttons for three seconds until a beep sounds.
Whenever that pushbutton is pressed and
released, the station that was set, returns.
5. Repeat the Steps 2 through 4 for each pushbutton.
Storing a Radio Station as a Favorite
Drivers are encouraged to set up their radio station
favorites while the vehicle is parked. Tune to your
favorite stations using the presets, favorites button, and
steering wheel controls, if the vehicle has this feature.
SeeDefensive Driving on page 4-2.
FAV (Favorites):If your vehicle has XM™ and has a
FAV button, a maximum of 36 stations can be
programmed as favorites using the six pushbuttons
positioned below the radio station frequency labels and
by using the radio favorites page button (FAV button).
3-87

Press the FAV button to go through up to six pages of
favorites, each having six favorite stations available
per page. Each page of favorites can contain any
combination of AM, FM, or XM™ (if equipped) stations.
The balance/fade and tone settings that were
previously adjusted, are stored with the favorite stations.
To store a station as a favorite, perform the
following steps:
1. Tune to the desired radio station.
2. Press the FAV button to display the page where
you want the station stored.
3. Press and hold one of the six pushbuttons until a
beep sounds. When that pushbutton is pressed
and released, the station that was set, returns.
4. Repeat the steps for each pushbutton radio station
you want stored as a favorite.The number of favorites pages can be setup using the
MENU button. To setup the number of favorites
pages, perform the following steps:
1. Press the MENU button to display the radio
setup menu.
2. Press the pushbutton located below the
FAV 1-6 label.
3. Select the desired number of favorites pages by
pressing the pushbutton located below the
displayed page numbers.
4. Press the FAV button, or let the menu time out, to
return to the original main radio screen showing the
radio station frequency labels and to begin the
process of programming your favorites for the
chosen amount of numbered pages.
Setting the Tone (Bass/Treble)
(AM-FM Radio)
Bass/Treble:To adjust the bass or treble, press the
tune knob or the EQ button until the desired tone control
label displays. Turn the tune knob clockwise or
counterclockwise to increase or decrease the setting.
The display shows the current bass or treble level.
If a station’s frequency is weak, or if there is static,
decrease the treble.
3-88

Setting the Tone
(Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble):To
adjust bass, midrange, or treble, press the
fknob until
the tone control labels display. Continue pressing to
highlight the desired label, or press the pushbutton
positioned under the desired label. Turn the
fknob
clockwise or counterclockwise to adjust the highlighted
setting. You can also adjust the highlighted setting
by pressing either SEEK arrow,
\FWD (forward), or
sREV (reverse) button until the desired levels
are obtained. If a station’s frequency is weak or if there
is static, decrease the treble.
To quickly adjust bass, midrange, or treble to the middle
position, press the pushbutton positioned under the
BASS, MID, or TREB label for more than two seconds.
A beep sounds and the level adjusts to the middle
position.
To quickly adjust all tone and speaker controls to the
middle position, press the
fknob for more than
two seconds until a beep sounds.
EQ (Equalization):Press this button to choose bass
and treble equalization settings designed for different
types of music. The choices are pop, rock, country, talk,
jazz, and classical. Selecting MANUAL or changingbass or treble, returns the EQ to the manual bass and
treble settings.
Unique EQ settings can be saved for each source.
If your radio has a Bose
®audio system, the EQ settings
are either MANUAL or TALK.
Adjusting the Speakers (Balance/Fade)
(AM-FM Radio)
`
(Balance/Fade):To adjust the balance or fade,
press this button or the tune knob until the desired
speaker control label displays. Turn the tune knob
clockwise or counterclockwise to adjust the setting.
The setting can also be adjusted by pressing the
seek arrows.
Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade):To adjust balance or
fade, press the
fknob until the speaker control labels
display. Continue pressing to highlight the desired
label, or press the pushbutton positioned under the
desired label. Turn the
fknob clockwise or
counterclockwise to adjust the highlighted setting. You
can also adjust the highlighted setting by pressing either
SEEK arrow,
\FWD, orsREV button until the
desired levels are obtained.
3-89

To quickly adjust balance or fade to the middle position,
press the pushbutton positioned under the BAL or
FADE label for more than two seconds. A beep sounds
and the level adjusts to the middle position.
To quickly adjust all speaker and tone controls to the
middle position, press the
fknob for more than
two seconds.
If the Rear Seat Audio (RSA) is turned on, the radio
disables FADE and mutes the rear speakers.
Finding a Category (CAT) Station
CAT (Category):The CAT button is used to nd XM™
stations when the radio is in the XM™ mode. To nd
XM™ channels within a desired category, perform
the following:
1. Press the BAND button until the XM™ frequency
displays. Press the CAT button to display the
category labels. Continue pressing the CAT button
until the desired category name displays.
Radios with CD and DVD can also navigate the
category list by pressing the
\FWD or the
sREV button.
2. Press either of the two buttons below the desired
category label to immediately tune to the rst
XM™ station associated with that category.3. Turn the
fknob, press the buttons below the right
or left arrows displayed, or press either SEEK arrow
to go to the previous or to the next XM™ station
within the selected category.
4. To exit the category search mode, press the
FAV button or BAND button to display your
favorites again.
Undesired XM™ categories can be removed through
the setup menu. To remove an undesired category,
perform the following:
1. Press the MENU button to display the radio
setup menu.
2. Press the pushbutton located below the XM CAT
label.
3. Turn the
fknob to display the category you want
removed.
4. Press the pushbutton located under the Remove
label until the category name along with the word
Removed displays.
5. Repeat the steps to remove more categories.
Removed categories can be restored by pressing the
pushbutton under the Add label when a removed
category is displayed or by pressing the pushbutton
under the Restore All label.
You cannot remove or add categories while the vehicle
is moving faster than 5 mph (8 km/h).
3-90