clock GMC SIERRA 2007 Owner's Guide

Setting the Tone
(Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble):To
adjust bass, midrange, or treble, press the tune
knob until the tone control labels display. Continue
pressing to highlight the desired label, or press the
pushbutton positioned under the desired label. Turn
the tune knob clockwise or counterclockwise to
adjust the highlighted setting. 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 tune knob 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 changing bass or treble, returns
the EQ to the manual bass and treble settings.Unique EQ settings can be saved for each source.
If the radio has a Bose
®audio system, the EQ
settings are either MANUAL or TALK.
Adjusting the Speakers (Balance/Fade)
BAL/FADE (Balance/Fade):To adjust balance
or fade, press the tune knob until the speaker
control labels display. Press the pushbutton
positioned under the desired label. Turn the tune
knob clockwise or counterclockwise to adjust
the highlighted setting. The highlighted setting can
also be adjusted by pressing either the SEEK,
FWD (forward), or REV (reverse) button until the
desired levels are obtained.
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 both the balance and fade to the
middle position at one time, press the tune knob for
more than two seconds until a beep sounds.
If the Rear Seat Audio (RSA) is turned on, the radio
disables FADE and mutes the rear speakers.
326

Playing a DVD
DVD/CD AUX (Auxiliary):Press this button to
cycle through DVD, CD, or Auxiliary when listening
to the radio. The DVD/CD text label and a
message showing track or chapter number
displays when a disc is in either slot. Press this
button again and the system automatically
searches for an auxiliary input device, such as a
portable audio player. If a portable audio player is
not connected, “No Aux Input Device” displays.
If a disc is in both the DVD slot and the CD slot the
DVD/CD AUX button cycles between the
two sources and not indicate “No Aux Input
Device”. If a front auxiliary device is connected,
the DVD/CD AUX button cycles through all
available options, such as: DVD slot, CD slot,
Front Auxiliary, and Rear Auxiliary (if available).
See “Using the Auxiliary Input Jack(s)” later in this
section, or “Audio/Video (A/V) Jacks” under,
Rear Seat Entertainment System on page 355for
more information.
O(Power):Press this knob to turn the radio on or
off. Turn this knob clockwise or counterclockwise to
increase or decrease the volume. Press and hold
the knob for more than two seconds to turn off the
entire radio and Rear Seat Entertainment (RSE)
system and to start the parental control feature.
Parental control prevents the rear seat occupant
from operating the Rear Seat Audio (RSA) system
or remote control.
A lock symbol appears next to the clock display.
The parental control feature remains on until this
button is pressed and held for more than
two seconds again, or until the driver turns the
ignition off and exits the vehicle.
f(Tune):Turn this knob to change tracks on a
CD or DVD, to manually tune a radio station, or to
change clock or date settings, while in the clock
or date setting mode. See the information
given earlier in this section specic to the radio,
CD, and the DVD. Also, see “Setting the Time” in
the index, for setting the clock and date.
333

Using the Auxiliary Input Jack(s)
The radio system has an auxiliary input jack
located on the lower right side of the faceplate.
This is not an audio output; do not plug the
headphone set into the front auxiliary input jack.
However, an external audio device such as
an iPod, laptop computer, MP3 player, CD player,
or cassette tape player, etc. can be connected
to the auxiliary input jack for use as another source
for audio listening.
Drivers are encouraged to set up any auxiliary
device while the vehicle is in PARK (P). See
Defensive Driving on page 374for more
information on driver distraction.
To use a portable audio player, connect a 1/8 inch
(3.5 mm) cable to the radio’s front auxiliary
input jack. While a device is connected, the radio
automatically begins playing audio from the
device over the vehicle speakers.
To listen to a device through the rear auxiliary input
over the speakers, cycle the DVD/CD Aux button
on the radio faceplate until “Rear Aux Input”
displays on the radio. The RSA or DVD Screen
must be on in order for the radio to source to rear
auxiliary.
O(Power/Volume):Turn this knob clockwise or
counterclockwise to increase or decrease the
volume of the portable player. Additional volume
adjustments might be needed from the portable
device if the volume is not loud or soft enough.
BAND:Press this button to listen to the radio
when a portable audio device is playing. The
portable audio device continues playing, so you
might want to stop it or power it off.
DVD/CD AUX (CD/Auxiliary):Press this button to
cycle through DVD, CD, or Auxiliary when
listening to the radio. The DVD/CD text label and
a message showing track or chapter number
displays when a disc is in either slot. Press this
button again and the system automatically
searches for an auxiliary input device, such as a
portable audio player. If a portable audio player is
not connected, “No Aux Input Device” displays.
If a disc is in both the DVD slot and the CD slot
the DVD/CD AUX button cycles between the
two sources and not indicate “No Aux Input
Device”.
338

If the system fails to turn on or activate, the
StabiliTrak®light along with one of the following
messages will be displayed on the Driver
Information Center (DIC): TRACTION CONTROL
OFF, SERVICE TRACTION CONTROL,
STABILITRAK OFF, SERVICE STABILITRAK. If
these DIC messages appear, make sure the
StabiliTrak
®system has not been turned off using
the StabiliTrak®on/off button. Then turn the
steering wheel clockwise from the nine o’clock
position to the three o’clock position. If this clears
the message(s), your vehicle does not need
servicing. If this does not clear the message(s),
then turn the vehicle off, wait 15 seconds, and then
turn it back on again to reset the system. If any
of these messages still appear on the Driver
Information Center (DIC), your vehicle should be
taken in for service. For more information on
the DIC messages, seeDriver Information Center
(DIC) on page 267.The StabiliTrak
®light
will ash on the
instrument panel cluster
when the system is
both on and activated.
You may also feel or hear the system working;
this is normal.
The traction control
disable button is located
on the instrument
panel below the climate
controls.
The traction control part of StabiliTrak
®can be
turned off by pressing and releasing the
StabiliTrak
®button if both systems (traction control
and StabiliTrak®) were previously on. To disable
both traction control and StabiliTrak®, press
and hold the button for ve seconds.
Traction control and StabiliTrak
®can be turned on
by pressing and releasing the StabiliTrak®button if
not automatically shut off for any other reason.
382

Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 486.
Steering in Emergencies
There are times when steering can be more
effective than braking. For example, you come
over a hill and nd a truck stopped in your lane, or
a car suddenly pulls out from nowhere, or a
child darts out from between parked cars and
stops right in front of you. You can avoid these
problems by braking — if you can stop in time. But
sometimes you cannot; there is not room. That
is the time for evasive action — steering around
the problem.
Your vehicle can perform very well in emergencies
like these. First, apply the brakes. SeeBraking
on page 378. It is better to remove as much speed
as you can from a possible collision. Then steer
around the problem, to the left or right depending
on the space available.An emergency like this requires close attention
and a quick decision. If you are holding the
steering wheel at the recommended 9 and
3 o’clock positions, you can turn it a full
180 degrees very quickly without removing either
hand. But you have to act fast, steer quickly,
and just as quickly straighten the wheel once you
have avoided the object.
The fact that such emergency situations are
always possible is a good reason to practice
defensive driving at all times and wear safety belts
properly.
386

Q:What should I do if my vehicle stalls, or
is about to stall, and I cannot make it up
the hill?
A:If this happens, there are some things you
should do, and there are some things you
must not do. First, here is what youshoulddo:
Push the brake pedal to stop the vehicle
and keep it from rolling backwards. Also, apply
the parking brake.
If the engine is still running, shift the
transmission to REVERSE (R), release the
parking brake, and slowly back down the hill in
REVERSE (R).
If the engine has stopped running, you will
need to restart it. With the brake pedal
pressed and the parking brake still applied,
shift the transmission to PARK (P) and restart
the engine. Then, shift to REVERSE (R),
release the parking brake, and slowly back
down the hill as straight as possible in
REVERSE (R).
As you are backing down the hill, put your left
hand on the steering wheel at the 12 o’clock
position. This way, you will be able to tell if the
wheels are straight and maneuver as you
back down. It is best that you back down the
hill with the wheels straight rather than in
the left or right direction. Turning the wheel too
far to the left or right will increase the
possibility of a rollover.
Here are some things youmust notdo if you stall,
or are about to stall, when going up a hill.
Never attempt to prevent a stall by shifting
into NEUTRAL (N) to rev-up the engine
and regain forward momentum. This will not
work. Your vehicle will roll backwards
very quickly and you could go out of control.
Instead, apply the regular brake to stop
the vehicle. Then apply the parking brake.
Shift to REVERSE (R), release the parking
brake, and slowly back straight down.
Never attempt to turn around if you are about
to stall when going up a hill. If the hill is steep
enough to stall your vehicle, it is steep
enough to cause you to roll over if you turn
around. If you cannot make it up the hill, you
must back straight down the hill.
399

To remove the fuel cap, turn it slowly
counterclockwise.
{CAUTION:
Fuel can spray out on you if you open the
fuel cap too quickly. If you spill fuel and
then something ignites it, you could be
badly burned. This spray can happen if
your tank is nearly full, and is more likely
in hot weather. Open the fuel cap slowly
and wait for any hiss noise to stop. Then
unscrew the cap all the way.
If your vehicle is a dual fuel tank chassis cab
model, and it runs out of fuel, refuel the front fuel
tank rst to ensure a quick restart.Be careful not to spill fuel. Do not top off or overll
the tank and wait a few seconds after you have
nished pumping before removing the nozzle.
Clean fuel from painted surfaces as soon as
possible. SeeWashing Your Vehicle on page 601.
When replacing the fuel cap, turn it clockwise until
it clicks. It will require more effort to turn the
fuel cap on the last turn as you tighten it. Make
sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left
off or improperly installed. This would allow fuel
to evaporate into the atmosphere. SeeMalfunction
Indicator Lamp on page 260.
The TIGHTEN GAS CAP message will be
displayed on the Driver Information Center (DIC) if
the fuel cap is not properly installed. SeeDIC
Warnings and Messages on page 279for more
information.
494

{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and a proper coolant.
Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
1. Remove the coolant
surge tank pressure
cap when the
cooling system,
including the coolant
surge tank
pressure cap and
upper radiator hose,
is no longer hot.
Turn the pressure cap slowly counterclockwise
about one full turn. If you hear a hiss, wait
for that to stop. A hiss means there is
still some pressure left.
523

Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas
inside and can burst if you drop or
scratch the bulb. You or others could be
injured. Be sure to read and follow the
instructions on the bulb package.
Headlamps
To replace one of these bulbs, do the following:
1. Open the hood. SeeHood Release on
page 497for more information.
2. If you are replacing the bulb on the passenger
side remove the Engine Air Cleaner cover.
SeeEngine Air Cleaner/Filter (Gasoline
Engines) on page 505for more information.
3. Reach in and access the bulb sockets from
inside the engine compartment.4. Turn the bulb socket counterclockwise to
remove it from the headlamp assembly
and pull it straight out.
5. Unplug the electrical connector from the old
bulb by releasing the clips on the bulb socket.
6. Replace it with a new bulb socket.
7. Plug in the electrical connector to the new
bulb socket.
8. Reinstall the new bulb socket into the
headlamp assembly and turn it clockwise
to secure.
9. Close the hood.
544

Center High-Mounted Stoplamp
(CHMSL) and Cargo Lamp
To replace one of these bulbs, do the following:
1. Remove the screws and lift off the lamp
assembly.A. Cargo Lamp
B. Center High-Mounted Stoplamp Bulb
2. Remove the CHMSL and Cargo bulbs by
turning socket counterclockwise and pulling
the bulb straight out.
3. Install the CHMSL and Cargo bulbs by
pushing the bulb straight in and turning
clockwise.
4. Reinstall the lamp assembly and tighten the
screws.
545