clock GMC SIERRA CLASSIC 2007 Owners Manual

Climate Controls
Climate Control System
Fan Knob
The fan knob on the left side of the control panel
adjusts the fan speed. Turn the knob clockwise
or counterclockwise, to increase or decrease
airow. To turn the fan off, turn the knob to the off
position.
9(Off):If the fan is off, outside air will still enter
the vehicle, and will be directed based on the
position of the mode knob. The temperature can
also be adjusted using the temperature knob.
Temperature Knob
The middle knob on the control panel lets you
select the temperature of the air owing into the
passenger area. Turn the knob clockwise
toward the red area for warmer air. Turn the knob
counterclockwise toward the blue area for
cooler air.
Mode Knob
The right knob on the control panel allows you to
choose the direction of air delivery.
H(Vent):This mode directs the air through the
instrument panel outlets.
)(Bi-Level):This mode directs air through the
oor outlets as well as the instrument panel
outlets. The ow can be divided between vent and
oor outlets depending upon where the knob is
placed between the settings.
6(Floor):This mode directs most of the air
through the oor outlets, and the rest of the air is
divided between the windshield defroster outlets
and the side window defroster outlets.
230

W(Defog):Airow is delivered through the oor
outlets, the windshield defroster outlets, and
the side window defroster outlets. The air ow can
be divided between oor and defrost depending
upon where the knob is placed between the
settings.
1(Defrost):This setting directs most air
through the windshield defroster outlets, side
window defroster outlets, and some through the
oor outlets.
Dual Climate Control System
With this system you can control the heating,
cooling, and ventilation for your vehicle.
Fan Control
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan
speed. Turn the knob to the off position to turn
off the fan. If the knob is in off, outside air will still
enter the vehicle and will be directed based on
the position of the mode knob. The temperature
can also be adjusted using the temperature levers.
Turn the right knob clockwise or counterclockwise
to direct the airow inside of your vehicle.
231

Dual Automatic Climate Control
System
With this system, you can control the heating,
cooling, and ventilation in your vehicle. Your
vehicle also has a ow-through ventilation system
described later in this section.
You can select different climate control settings for
the driver and passengers.
Driver’s Side Temperature Knob
The driver’s side knob is used to adjust the
temperature of the air coming through the system
on the driver’s side. The temperature can be
adjusted even if the system is turned off. This is
possible since outside air will always ow through
the system as the vehicle is moving forward
unless it is set to recirculation mode. See
“Recirculation” later in this section.
Turn the knob counterclockwise or clockwise to
lower or increase the cabin temperature. The
display will show the temperature setting
decreasing or increasing and an arrow pointing to
the driver will be displayed under and to the
left of the temperature setting.
235

Passenger’s Side Temperature Knob
The passenger’s side knob can be used to change
the temperature of the air coming through the
system on the passenger’s side of the vehicle. The
temperature can be adjusted even if the system
is turned off. This is possible since outside air will
always ow through the system as the vehicle
is moving forward unless it is set to recirculation
mode. See “Recirculation” later in this section.
Turn the knob counterclockwise or clockwise
to lower or increase the cabin temperature. The
display will show the temperature setting
decreasing or increasing and an arrow pointing to
the passenger will be displayed under and to
the right of the temperature setting.
The passenger’s temperature setting can be set to
match the driver’s temperature setting by
pressing and holding the AUTO button for four
seconds. Both the driver and passenger arrows will
be displayed.
Automatic Operation
AUTO (Automatic):When automatic operation is
active the system will control the inside
temperature, the air delivery, and the fan speed.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the display will change
to show the current driver’s set temperature,
delivery mode and fan speed. Press the AUTO
button again within ve seconds to display the
passenger’s set temperature.
If the driver and passenger’s temperature
settings are not the same, the opposite side
temperature setting will be displayed for
an additional ve seconds. To make the
passenger’s temperature the same as
the driver’s press and hold the AUTO button
for about four seconds.
236

While your vehicle is parked:
Familiarize yourself with all of its controls.
Familiarize yourself with its operation.
Set up your audio system by presetting your
favorite radio stations, setting the tone, and
adjusting the speakers. Then, when driving
conditions permit, you can tune to your favorite
radio stations using the presets and steering
wheel controls if the vehicle has them.
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. 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.Notice:The chime signals related to safety
belts, parking brake, and other functions
of your vehicle operate through the
radio/entertainment system. If that equipment
is replaced or additional equipment is added
to your vehicle, the chimes may not work. Make
sure that replacement or additional equipment
is compatible with your vehicle before
installing it. SeeAccessories and Modifications
on page 468.
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 137for more information.
Setting the Time for Radios without
Radio Data Systems (RDS)
Press and hold HR (hour) until the correct hour
appears on the display. Press and hold MIN
(minute) until the correct minute appears on the
display. There is an initial two-second delay before
the clock goes into time-set mode. Display the
time with the ignition off, by pressing RCL (recall),
HR, or MIN.
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Setting the Time for Radios with
Radio Data Systems (RDS)
The radio may have a button marked with an H or
HR to represent hours and an M or MN to
represent minutes.
Press and hold the hour button until the correct
hour appears on the display. Press and hold
the minute button until the correct minute appears
on the display. The time can be set with the
ignition on or off.
To synchronize the time with an FM station
broadcasting Radio Data System (RDS)
information, press and hold the hour and minute
buttons at the same time until RDS TIME appears
on the display. To accept this time, press and
hold the hour and minute buttons, at the same
time, for another two seconds. If the time is
not available from the station, NO UPDAT (update)
will appear on the display.
RDS time is broadcast once a minute. After tuning
to an RDS broadcast station, it may take a few
minutes for the time to update.
AM-FM Radio
Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
VOL (Volume):Turn this knob clockwise or
counterclockwise to increase or to decrease the
volume.
RCL (Recall):Press this knob to switch the
display between the radio station frequency, band,
and the time. When the ignition is off, press this
knob to display the time.
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©SCAN¨:Press and hold either the SCAN or
the TYPE arrows for more than two seconds
until SCAN appears on the display and you hear a
beep. The radio will go to the next selection,
play for 10 seconds, then go on to the next
selection. Press either the SCAN or the TYPE
arrows again, to stop scanning. The tape
must have at least three seconds of silence
between each selection for scan to work.
BAND:Press this button to listen to the radio
when a cassette tape or CD is playing. The
inactive tape or CD will remain safely inside the
radio for future listening.
TAPE DISC:Press this button to play a cassette
tape or CD when listening to the radio. The
inactive tape or CD will remain safely inside the
radio for future listening.
Z(Eject):Press this button to stop and eject a
tape when it is playing or to eject a tape when
it is not playing. Eject may be activated with
the radio off.
Cassette Tape Messages
CHK TAPE (Check Tape):If this message
appears on the display, the tape will not play due
to one of the following errors:
The tape is tight and the player cannot turn
the tape hubs. Remove the tape. Hold the
tape with the open end down and try to turn
the right hub counterclockwise with a
pencil. Turn the tape over and repeat. If the
hubs do not turn easily, the tape may be
damaged and should not be used in the
player. Try a new tape to make sure your
player is working properly.
The tape is broken. Try a new tape.
The tape is wrapped around the tape head.
Attempt to get the cassette out. Try a new tape.
313

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 your brakes.
SeeBraking on page 360. 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.
368

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), or shift to
NEUTRAL if your vehicle has a manual
transmission, 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), or pressing the clutch if your
vehicle has a manual transmission, 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.
383

The tethered fuel cap is located behind a hinged
fuel door on the driver’s side of the vehicle. If
the vehicle has E85 fuel capability, a yellow cap
with the words″E85 or gasoline″can be seen.
To remove the fuel cap, turn it slowly
counterclockwise. It will require more effort
to turn the fuel cap on the last turn as you
loosen it.
{CAUTION:
If you spill fuel and then something
ignites it, you could be badly burned. Fuel
can spray out on you if you open the fuel
cap too quickly. 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 592.
475