2009 GMC SIERRA radio

Readings outside the normal operating range can also
occur when a large number of electrical accessories
are operating in the vehicle and the engine is left idling
for an extended period. This condition is normal since
the charging system is not able to provide full power at
engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
The vehicle can only be driven for a short time with the
readings outside the normal operating range. If the
vehicle must be driven, turn off all accessories, such as
the radio and air conditioner.
Readings outside the normal operating range indicate a
possible problem in the electrical system. Have the
vehicle serviced as soon as possible.Brake System Warning Light
With the ignition on, the brake system warning light
comes on when the parking brake is set. If the vehicle is
driven with the parking brake engaged, a chime sounds
when the vehicle speed is greater than 5 mph (8 km/h).
The vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop the vehicle. For good braking,
both parts need to be working well.
If the warning light comes on and a chime sounds there
could be a brake problem. Have the brake system
inspected right away.
This light can also come on due to low brake uid.
SeeBrakes on page 5-40for more information.
United States
Canada
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Audio System(s)
Determine which radio the vehicle has and read the
following pages to become familiar with its features.
{CAUTION:
Taking your eyes off the road for extended periods
could cause a crash resulting in injury or death to
you or others. Do not give extended attention to
entertainment tasks while driving.
This system provides access to many audio and non
audio listings.To minimize taking your eyes off the road while driving,
do the following while the vehicle is parked:
Become familiar with the operation and controls of
the audio system.
Set up the tone, speaker adjustments, and preset
radio stations.
For more information, seeDefensive Driving on
page 4-2.
Notice:Contact your dealer/retailer before adding
any equipment.
Adding audio or communication equipment could
interfere with the operation of the vehicle’s engine,
radio, or other systems, and could damage them.
Follow federal rules covering mobile radio and
telephone equipment.
The vehicle has 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.
3-85

Setting the Clock
AM-FM Radio with Optional CD Player
If the 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.
To set the clock:
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.
MP3 Radios with a Single CD or a
Single CD and DVD Player
If the 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:
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 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, or turn thefknob,
located on the upper right side of the radio, to
adjust the selected setting.
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Changing the Time and Date Default
Settings
To 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:
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.
MP3 Radio with a Six-Disc CD Player
If the 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:
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 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, or turn thefknob,
located on the upper right side of the radio, to adjust
the selected setting.
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Changing the Time and Date Default
Settings
To 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:
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.
Radio(s)
AM-FM Radio
3-88

The vehicle has one of these radios as its audio
system. Radio with CD (MP3) shown,
Radio with Six-Disc CD (MP3) similar
Radio with CD and DVD (MP3)
3-89

Radios with CD and DVD
Radios with CD and DVD have a Bose®Surround Sound
System. Some of its features are explained later in this
section under, “Adjusting the Speakers (Balance/Fade)”.
If the vehicle has a Rear Seat Entertainment (RSE)
system, it has a CD/DVD radio. SeeRear Seat
Entertainment (RSE) System on page 3-129for more
information on the vehicle’s RSE system.
The DVD player is the top slot on the radio faceplate.
The player is capable of reading the DTS programmed
DVD Audio or DVD Video media, (DTS and DTS
Digital Surround are registered trademarks of Digital
Theater Systems, Inc.).
Manufactured under license from Dolby Laboratories.
Dolby and the double-D symbol are trademarks of
Dolby Laboratories.
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.
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H(Clock) (AM-FM Radio):The 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 3-86for 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 the 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.
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.
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