2008 GMC SAVANA PASSENGER heating

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-6
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Turn and Lane-Change Signals........................3-8
Headlamp High/Low-Beam Changer..................3-9
Flash-to-Pass.................................................3-9
Windshield Wipers..........................................3-9
Windshield Washer.......................................3-10
Cruise Control..............................................3-10
Exterior Lamps.............................................3-13
Headlamps on Reminder................................3-14
Daytime Running Lamps (DRL).......................3-15
Automatic Headlamp System..........................3-15
Instrument Panel Brightness...........................3-16
Dome Lamps...............................................3-16
Dome Lamp Override....................................3-16
Entry/Exit Lighting.........................................3-17
Reading Lamps............................................3-17
Electric Power Management...........................3-17
Battery Run-Down Protection..........................3-17
Accessory Power Outlet(s).............................3-18
Ashtray(s) and Cigarette Lighter......................3-18Climate Controls............................................3-19
Climate Control System.................................3-19
Outlet Adjustment.........................................3-21
Rear Heating System....................................3-22
Rear Air Conditioning and Heating System.......3-23
Warning Lights, Gages, and Indicators............3-24
Instrument Panel Cluster................................3-25
Speedometer and Odometer...........................3-26
Trip Odometer..............................................3-26
Safety Belt Reminders...................................3-26
Airbag Readiness Light..................................3-27
Airbag Off Light............................................3-28
Passenger Airbag Status Indicator...................3-30
Charging System Light..................................3-32
Voltmeter Gage............................................3-32
Brake System Warning Light..........................3-33
Antilock Brake System Warning Light...............3-34
StabiliTrak
®Indicator Light..............................3-34
Engine Coolant Temperature Gage..................3-35
Tire Pressure Light.......................................3-35
Malfunction Indicator Lamp.............................3-36
Oil Pressure Gage........................................3-38
Oil Pressure Light.........................................3-39
Security Light...............................................3-40
Cruise Control Light......................................3-40
Section 3 Instrument Panel
3-1

The main components of the instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on page 3-21.
B. Driver Information Center Buttons. SeeDriver
Information Center (DIC) on page 3-42.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-7.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-6.
E. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 3-25.
F. Shift Lever. SeeStarting the Engine on page 2-20.
G. Climate Control System. SeeClimate Control System
on page 3-19.
H. Audio System(s). SeeAudio System(s) on
page 3-63.
I. Exterior Lamp Controls. SeeExterior Lamps on
page 3-13.
J. Instrument Panel Brightness Control. SeeInstrument
Panel Brightness on page 3-16.
K. Cruise Control Buttons. SeeCruise Control on
page 3-10. Fast Idle System (If Equipped).
See DURAMAX
®Diesel Manual for more
information.L. Tilt Lever. SeeTilt Wheel on page 3-7.
M. Horn. SeeHorn on page 3-6.
N. Audio Steering Wheel Controls. SeeAudio Steering
Wheel Controls on page 3-82.
O. Tow/Haul Mode Button. See “Tow/Haul Mode” under
Towing a Trailer on page 4-28.
P. Accessory Power Outlets/Cigarette Lighter.
SeeAccessory Power Outlet(s) on page 3-18and
Ashtray(s) and Cigarette Lighter on page 3-18.
Q. StabiliTrak
®Button (If Equipped). SeeStabiliTrak®
System on page 4-5.
R. Airbag Off Switch. SeeAirbag Off Switch on
page 1-66.
S. Storage Compartment. SeeStorage Areas on
page 2-34.
T. Passenger Airbag Status Indicator. SeePassenger
Airbag Status Indicator on page 3-30.
U. Rear Heating System (If Equipped). SeeRear
Heating System on page 3-22.
3-5

Accessory Power Outlet(s)
Your vehicle may have two accessory power outlets
located on the instrument panel.
To use the outlet lift the cover. The spring cap cover
closes by itself when the outlet is empty.
Certain power accessory plugs may not be compatible
to the accessory power outlet and could result in
blown vehicle or adapter fuses. If you experience
a problem, see your dealer/retailer for additional
information on the accessory power plugs.
Notice:Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your warranty. Do not use equipment
exceeding maximum amperage rating of 20 amperes.
Check with your dealer/retailer before adding
electrical equipment.
When adding electrical equipment, be sure to follow
the proper installation instructions included with the
equipment.
Notice:Improper use of the power outlet can cause
damage not covered by your warranty. Do not
hang any type of accessory or accessory bracket
from the plug because the power outlets are
designed for accessory power plugs only.
Ashtray(s) and Cigarette Lighter
If your vehicle has this feature it is located in the center
console or on the instrument panel. Pull up on the
ashtray door to open it if it is in the console or pull
the door open it if it is on the instrument panel.
Notice:If you put papers, pins, or other ammable
items in the ashtray, hot cigarettes or other smoking
materials could ignite them and possibly damage
your vehicle. Never put ammable items in the
ashtray.
To remove the ashtray, pull it out from the console
or from the slide out door. To reinstall the ashtray,
slide it back to the original position.
To use the cigarette lighter, if the vehicle has one, push
it in all the way, and let go. When it is ready for use,
it will pop back out by itself.
Do not use the lighter to plug in accessory devices.
Use the power outlets provided.
Notice:Holding a cigarette lighter in while it is
heating does not let the lighter back away from
the heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold
a cigarette lighter in while it is heating.
3-18

Climate Controls
Climate Control System
The heating, cooling, and ventilation for your vehicle
can be controlled with this system.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Temperature Control:Turn the middle knob clockwise
or counterclockwise to increase or decrease the
temperature inside the vehicle.
Turn the right knob clockwise or counterclockwise to
direct the airflow inside of the vehicle.To change the current mode, select one of the following:
9(Off):This turns the system off.
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs about half of the air
to the instrument panel outlets, then directs most of
the remaining air to the floor outlets. Some air may be
directed toward the windshield.
6(Floor):This mode directs most of the air to the
floor outlets with some air directed to the outboard
outlets (for the side windows) and some air directed
to the windshield.
The right knob can also be used to select the defrost
and defog modes. Information on defogging and
defrosting can be found later in this section.
3-19

If your vehicle has air conditioning, your heating/air
conditioning controls will look like this:
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
needed for the vehicle to cool down and the system
operates more efficiently.
#(Air Conditioning):This setting will begin to cool
and dehumidify the air inside of the vehicle.
V(Maximum Air Conditioning):Turn the right knob
to
Vfor maximum cooling. This setting cools the air the
fastest, by recirculating the inside air.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass. This
can be minimized if the climate control is used properly.
There are two modes to clear fog or frost from the
windshield and side windows.Use the defog mode to clear the windows of fog or
moisture and warm the passengers. Use the defrost
mode to remove fog or frost from the windshield more
quickly in extremely cold conditions. For best results,
clear all snow and ice from the windshield before
defrosting.
Turn the knob on the right of the climate control panel
to select the defog or defrost mode. The temperature
knob should be in the red area and the fan control
toward high.
-(Defog):With this setting, the outside air comes
out of both the floor and defroster outlets. Adjust the
temperature knob for warmer or cooler air. The air
conditioning compressor may operate in this setting
to dehumidify the air.
1(Defrost):This setting operates the defroster.
Most of the air comes out near the windshield,
with some going to the floor outlets and front side
windows. The air conditioning compressor may
operate in this setting to dehumidify the air.
Do not drive the vehicle until all the windows are clear.
3-20

Rear Heating System
Your vehicle may have a rear heating system that
allows you to adjust the amount of air flowing into
the rear of the vehicle, from the front-seating area.
This feature works with the main climate-control system
in your vehicle.
AUX:The thumbwheel for this system is located in the
switchbank below the audio system.
9(Fan):Turn the thumbwheel up or down to increase
or decrease the amount of heated air sent to the
rear-seating area.
Q(High):Turn the thumbwheel to this position to
supply the most amount of heat to the rear-seating area.
c(Medium):Turn the thumbwheel to this position to
supply half the amount of heat to the rear-seating area.
R(Low):Turn the thumbwheel to this position to
supply the least amount of heat to the rear-seating area.
9(Off):Turn the thumbwheel to this position to
turn the rear heating system off.
3-22

Rear Air Conditioning and Heating
System
Your vehicle may have a rear heating and
air-conditioning system. This system regulates the
temperature, the fan speed and the air delivery for
the rear-seat passengers only. It also works with
the main climate-control system in your vehicle.
Use this control panel when you would like to maintain
a separate temperature setting. Adjust the direction
of the airflow or adjust the fan speed for the rear seat
passenger(s).If your vehicle has a 135 inch (343 cm) wheelbase,
a rear control panel for this system is located in
the second row behind the driver in the rear of your
vehicle. A rear seat passenger can use this control panel
to personally adjust the temperature, the direction of
the airflow and the fan speed for the rear seating area.
The fan knob located on the front climate control
panel must be turned to AUX (Auxiliary) to let a rear
seat passenger use the control panel in the rear seating
area. Performing this action disables the front control
panel. To return control to this panel, move the fan knob
out of AUX.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the
fan speed in the rear-seating area.
9:This position turns the system off. Front Climate Control Panel
Rear Climate Control Panel
3-23

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
It also provides an indicator of how hard your vehicle is
working. During a majority of the operation, the gage
will read 210°F (100°C) or less. If you are pulling a load
or going up hills, it is normal for the temperature to
fluctuate and approach the 250°F (122°C) mark. If the
gage reaches the 260°F (125°C) mark, it indicates
that the cooling system is working beyond its capacity.
SeeEngine Overheating on page 5-26.
Tire Pressure Light
This light comes on briefly
when the engine is started.
This light will also come on when one or more of your
tires are significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), may accompany the light. SeeDIC
Warnings and Messages on page 3-49for more
information.
Stop and check your tires as soon as it is safe to do so.
If underinflated, inflate to the proper pressure. SeeTires
on page 5-53for more information.
If a problem is detected with the Tire Pressure Monitor
System, this light will flash for approximately 60 seconds
and then stay on solid for the remainder of the ignition
cycle. SeeTire Pressure Monitor System on page 5-62
for more information. United States
Canada
3-35