2009 CHEVROLET SUBURBAN air condition

When the System Does Not Seem to
Work Properly
If the URPA system will not activate due to a temporary
condition, the message PARK ASSIST OFF will be
displayed on the DIC and a red light will be shown on
the rear URPA display when the shift lever is moved into
R (Reverse). This occurs under the following conditions:
The driver disables the system.
The ultrasonic sensors are not clean. Keep the
vehicle’s rear bumper free of mud, dirt, snow,
ice and slush. For cleaning instructions, see
Washing Your Vehicle on page 5-110.
A trailer was attached to the vehicle, or a bicycle or
an object was hanging out of the liftgate during the
last drive cycle, the red light may illuminate in
the rear display. Once the attached object is
removed, URPA will return to normal operation.
A tow bar is attached to the vehicle.
The vehicle’s bumper is damaged. Take the vehicle
to your dealer/retailer to repair the system.
Other conditions may affect system performance,
such as vibrations from a jackhammer or the
compression of air brakes on a very large truck.
If the system is still disabled, after driving forward at
least 15 mph (25 km/h), take the vehicle to your
dealer/retailer.
Side Blind Zone Alert (SBZA)
The vehicle may have a Side Blind Zone Alert (SBZA)
system. Read this entire section before using the
system.
The SBZA system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-310 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Frequency of operation: 24.05GHz – 24.25GHz
Field Strength: Not greater than 2.5V/m peak
(0.25V/m average) at a distance of 3m
2-58

OnStar®System
OnStar uses several innovative technologies and live
advisors to provide a wide range of safety, security,
information, and convenience services. If the airbags
deploy, the system is designed to make an automatic
call to OnStar Emergency advisors who can request
emergency services be sent to your location. If the keys
are locked in the vehicle, call OnStar at 1-888-4-ONSTAR
to have a signal sent to unlock the doors. OnStar
Hands-Free Calling, including 30 trial minutes good
for 60 days, is available on most vehicles. OnStar
Turn-by-Turn Navigation service, with one trial route, is
available on most vehicles. Press the OnStar button to
have an OnStar advisor contact Roadside Service.OnStar service is provided subject to the OnStar Terms
and Conditions included in the OnStar Subscriber
glove box literature.
Some services such as Remote Door Unlock or Stolen
Vehicle Location Assistance may not be available until
the owner of the vehicle registers with OnStar. After the
rst prepaid year, contact OnStar to select a monthly or
annual subscription payment plan. If a payment plan is
not selected, the OnStar system and all services,
including airbag notication and emergency services,
may be deactivated and no longer available. For more
information visit onstar.com (U.S.) or onstar.ca (Canada),
or press the OnStar button to speak with an advisor.
Not all OnStar services are available on all vehicles.
To check if this vehicle is able to provide the services
described below, or for a full description of OnStar
services and system limitations, see the OnStar Owner’s
Guide in the glove box or visit onstar.com (U.S.) or
onstar.ca (Canada), contact OnStar at 1-888-4-ONSTAR
(1-888-466-7827) or TTY 1-877-248-2080, or press
the OnStar button to speak with an OnStar advisor
24 hours a day, 7 days a week.
2-68

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Horn .............................................................3-6
Tilt Wheel.....................................................3-6
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-7
Headlamp High/Low-Beam Changer..................3-8
Flash-to-Pass.................................................3-8
Windshield Wipers..........................................3-9
Rainsense™ II Wipers.....................................3-9
Windshield Washer.......................................3-10
Rear Window Wiper/Washer...........................3-11
Cruise Control..............................................3-12
Exterior Lamps.............................................3-14
Headlamps on Reminder................................3-15
Daytime Running Lamps (DRL).......................3-16
Automatic Headlamp System..........................3-16
Fog Lamps ..................................................3-17
Auxiliary Roof-Mounted Lamp.........................3-18
Instrument Panel Brightness...........................3-18
Dome Lamps ...............................................3-18
Dome Lamp Override....................................3-19
Entry Lighting...............................................3-19
Exit Lighting.................................................3-19
Reading Lamps............................................3-19
Electric Power Management...........................3-19
Battery Run-Down Protection..........................3-20Accessory Power Outlet(s).............................3-20
Ashtray(s) and Cigarette Lighter......................3-21
Climate Controls............................................3-22
Climate Control System.................................3-22
Dual Automatic Climate Control System...........3-24
Outlet Adjustment.........................................3-30
Rear Air Conditioning and Heating System.......3-31
Rear Air Conditioning and Heating System
and Electronic Climate Controls
...................3-32
Warning Lights, Gages, and Indicators............3-34
Instrument Panel Cluster................................3-35
Speedometer and Odometer...........................3-36
Trip Odometer..............................................3-36
Tachometer.................................................3-36
Safety Belt Reminders...................................3-36
Airbag Readiness Light..................................3-37
Passenger Airbag Status Indicator...................3-38
Charging System Light..................................3-39
Voltmeter Gage............................................3-39
Brake System Warning Light..........................3-40
Antilock Brake System (ABS) Warning Light.....3-41
StabiliTrak
®Indicator Light.............................3-42
Engine Coolant Temperature Gage..................3-42
Tire Pressure Light.......................................3-43
Malfunction Indicator Lamp.............................3-43
Oil Pressure Gage........................................3-46
Section 3 Instrument Panel
3-1

Climate Controls
Climate Control System
The heating, cooling, and ventilation in the vehicle can
be controlled with this system.
A. Fan Control
B. REAR
C. Recirculation
D. Air Delivery Mode
Control
E. Air ConditioningF. Driver and
Passenger
Temperature
Controls
G. Rear Window
DefoggerTemperature Control:Move the thumbwheels up or
down to increase or decrease the temperature on
the driver’s side or the passenger side of the vehicle for
the dual zone system.9(Fan Control):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Turn the knob all the way counterclockwise to turn the
front system off.
Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the airow direction inside
the vehicle. By positioning the knob between two
modes, a combination of those modes is selected.
Select from the following modes:
H(Vent):Air is directed to the instrument panel outlets.
)(Bi-Level):Air is divided between the instrument
panel and oor outlets. Some air is directed towards the
windshield and side window outlets. Cooler air is directed
to the upper outlets and warmer air to the oor outlets.
6(Floor):Air is directed to the oor outlets, with some
of the air directed to the windshield, side window, and
second row oor outlets. In this mode, the system
automatically selects outside air. Recirculation cannot
be selected when in Floor Mode.
3-22

-(Defog):The defog mode is used to clear the
windows of fog or moisture. Air is directed to the
windshield, oor outlets, and side window vents. In this
mode, the system turns off recirculation and runs
the air conditioning compressor unless the outside
temperature is close to freezing. The recirculation mode
cannot be selected while in the defog mode.
0(Defrost):The defrost mode is used to remove fog
or frost from the windshield more quickly. Air is directed to
the windshield and side window vents, with some directed
to the oor vents. In this mode, the system automatically
forces outside air into the vehicle. The recirculation mode
cannot be selected while in the defrost mode. The air
conditioning compressor runs automatically in this
setting, unless the outside temperature is close to
freezing.
Do not drive the vehicle until all the windows are clear.
#(Air Conditioning):Press this button to turn the air
conditioning system on or off. An indicator light comes
on to show that the air conditioning is on. The air
conditioning can be selected in any mode as long as
the fan switch is on.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for the vehicle to cool down. It also helps the
system to operate more efficiently.The air conditioning system removes moisture from the
air, so a small amount of water might drip under the
vehicle while idling or after turning off the engine. This is
normal.
h(Recirculation):Press this button to turn the
recirculation mode on or off. An indicator light comes on
to show that recirculation is on.
This mode recirculates and helps to quickly cool the air
inside the vehicle. It can be used to help prevent
outside air and odors from entering the vehicle.
The recirculation mode cannot be used with oor, defrost,
or defogging modes. If recirculation is selected while in
one of those modes, the indicator ashes three times and
turns off. The air conditioning compressor will also come
on when this mode is activated. While in recirculation
mode the windows may fog when the weather is cold and
damp. To clear the fog, select either the defog or defrost
mode and increase the fan speed. The recirculation mode
can also be turned off by turning off the engine.
REAR:Press to turn the rear heating and air
conditioning on. SeeRear Air Conditioning and Heating
System on page 3-31orRear Air Conditioning and
Heating System and Electronic Climate Controls
on page 3-32for more information.
3-23

A. Fan Control
B. AUTO
C. Defrost
D. Recirculation
E. REAR
F. Air Delivery Mode
Control
G. Driver Temperature
ControlH. Display
I. Power Button
J. Rear Window
Defogger
K. Air Conditioning
L. PASS
M. Passenger
Temperature
Control
O(On/Off):Press to turn the climate control system on
or off. Outside air still enters the vehicle, and is directed to
the oor. This direction can be changed by pressing the
mode button. Recirculation can be selected once you
have selected vent or bi-level mode. The temperature can
also be adjusted using either temperature button. If the
air delivery mode or temperature settings are adjusted
with the system off, the display illuminates briey to show
the settings and then returns to off. The system can be
turned back on by pressing either
O,D,C,#, the
defrost or the AUTO button.
Driver and Passenger Side Temperature
Control
The driver and passenger side temperature buttons are
used to adjust the temperature of the air coming
through the system on the driver or passenger’s side of
the vehicle. The temperature can be adjusted even if
the system is turned off. This is possible since outside
air always ows through the system as the vehicle
is moving forward unless it is set to recirculation mode.
See “Recirculation” later in this section.
Press the + or−buttons to increase or decrease the
cabin temperature. The driver side or passenger
side temperature display shows the temperature setting
decreasing or increasing.
3-25

The passenger’s temperature setting can be set to
match the driver’s temperature setting by pressing the
PASS button and turning off the PASS indicator.
When the passenger’s temperature setting is set
different than the driver’s setting, the indicator on the
PASS button illuminates and both the driver side
and passenger side temperature displays are shown.
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 temperature(s) and AUTO will
be lit on the display. The current delivery mode and
fan speed will also be displayed for approximately
5 seconds.
When AUTO is selected, the air conditioning
operation and air inlet will be automatically
controlled. The air conditioning compressor will run
when the outside temperature is over about
40°F (4°C). The air inlet will normally be set to
outside air. If it is hot outside, the air inlet mayautomatically switch to recirculate inside air to help
quickly cool down the vehicle. The light on the
button comes on in recirculation.
2. Set the driver’s and passenger’s temperature.
To nd your comfort setting, start with a 74°F (23°C)
temperature setting and allow about 20 minutes
for the system to regulate. Use the driver’s or
passenger’s temperature buttons to adjust the
temperature setting as necessary. If a temperature
setting of 60°F (15°C) is chosen, the system remains
at the maximum cooling setting. If a temperature
setting of 90°F (32°C) is chosen, the system remains
at the maximum heat setting. Choosing either
maximum setting will not cause the vehicle to heat or
cool any faster.
Do not to cover the solar sensor located on the top
of the instrument panel near the windshield. This sensor
regulates air temperature based on sun load and also
turns on the headlamps. For more information on
the solar sensor, see “Sensors” later in this section.
To avoid blowing cold air in cold weather, the system will
delay turning on the fan until warm air is available.
The length of delay depends on the engine coolant
temperature. Pressing the fan switch will override this
delay and change the fan to a selected speed.
3-26

Manual Operation
DC(Fan Control):Press these buttons to increase or
decrease the fan speed.
Pressing either fan button while in automatic control
places the fan under manual control. The fan setting
remains displayed and the AUTO light turns off. The air
delivery mode remains under automatic control.
HG(Air Delivery Mode Control):Press these buttons
to change the direction of the airow in the vehicle.
Repeatedly press either button until the desired mode
appears on the display. Pressing either mode button
while the system is off changes the air delivery mode
without turning the system on. Pressing either mode
button while in automatic control places the mode under
manual control.
The air delivery mode setting is displayed and the
AUTO light turns off. The fan remains under automatic
control.
H(Vent):Air is directed to the instrument panel outlets.
)(Bi-Level):Air is divided between the instrument
panel and oor outlets. Some air is directed towards the
windshield and side window outlets.
6(Floor):Air is directed to the oor outlets, with
some to the windshield, side window outlets, and second
row oor outlets. In this mode, the system automatically
selects outside air.
-(Defog):This mode clears the windows of fog or
moisture. Air is directed to the windshield, oor outlets,
and side window vents. In this mode, the system
turns off recirculation and runs the air conditioning
compressor unless the outside temperature is close to
freezing. The recirculation mode cannot be selected
while in the defog mode.
0(Defrost):This mode removes fog or frost from the
windshield more quickly. Air is directed to the windshield
and side window vents, with some directed to the oor
vents. In this mode, the system automatically forces
outside air into the vehicle and runs the air conditioning
compressor unless the outside temperature is close to
freezing. The recirculation mode cannot be selected while
in the defrost mode.
Do not drive the vehicle until all the windows are clear.
3-27