2008 CHEVROLET CORVETTE climate control

x9w(Fan):Press the button with the fan symbol
to manually increase or decrease the fan speed.
Keep pressing the up or down arrow on this switch until
the desired fan speed appears on the display.
Pressing the arrows will delete AUTO from the digital
display. The fan graphics with the fan speed bars will be
shown. To increase the fan speed so that more air
ows into the vehicle, press the up arrow on the
fan switch. To decrease the fan speed and airow,
press the down arrow. The AUTO button must be
pressed to return to the automatic fan control.
If the airow seems low when the fan speed is at the
highest setting, the passenger compartment air lter
may need to be replaced. For more information,
seePassenger Compartment Air Filter on page 3-32
andScheduled Maintenance on page 6-4.
?(Recirculation):Press this button to turn the
recirculation mode on or off. When the climate control
system is in recirculation mode an indicator light will
come on. This mode prevents outside air from entering
your vehicle. It can be used to prevent outside air and
odors from entering your vehicle and to help cool the air
inside your vehicle more quickly. Recirculation mode is
not available in defrost or defog mode.
^(Air Conditioning Off):Press this button to turn the
air conditioning compressor off. Press AUTO to return
to automatic operation. When in AUTO, the air
conditioning compressor will come on automatically,
as needed.
Air conditioning does not operate at temperatures below
about 35°F to 40°F (2°C to 4°C). In temperatures
above 40°F (4°C), the air conditioning cannot be turned
off in defrost and defog, as it helps to remove moisture
from the vehicle. It also helps to keep the windows clear.
You may notice a slight change in engine performance
when the air-conditioning compressor shuts off and
turns on again. This is normal. The system is designed
to make adjustments to help with fuel economy while
still maintaining the selected temperature.
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently.
3-28

These delays prevent false readings. If the temperature
goes down, the outside temperature will be shown
when you start the vehicle. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
There is also an inside temperature sensor located to
the left of the ignition switch. The automatic climate
control system uses this sensor to receive information,
so if you block or cover it, the system will not function
properly.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
and moisture condensing on the cool window glass.
This can be minimized if the climate control system is
used properly. There are two modes to clear fog or frost
from your windshield. Use the oor/defog mode to
clear the windows of fog or moisture and warm the
passengers. Use defrost to remove fog or frost from the
windshield more quickly. To prevent fogging on the
inside of the windows in modes other than oor/defog
and defrost, make sure the air conditioning compressor
is on and recirculation mode is off.Press the mode button until the defog mode appears on
the display.
-(Floor/Defog):This mode directs the air equally
between the windshield and the oor outlets with a small
amount to the side window outlets. When you select
this mode, the system turns off recirculation and runs
the air-conditioning compressor unless the outside
temperature is at or below freezing. The recirculation
mode cannot be selected while in the defog mode.
1(Defrost):Pressing this button directs most of the
air to the windshield, with a small amount directed to the
side window outlets. The light on the button will come
on and the digital display will show the defrost mode
symbol and fan speed when the front defrost mode is
being used. In this mode, the system will automatically
turn off the recirculation and run the air-conditioning
compressor, unless the outside temperature is at
or below freezing. Recirculation cannot be selected
while in the defrost mode. Pressing this button again
will return the system to the last operating mode.
For severe ice conditions, turn the driver’s temperature
knob to 90°F (32°C) while in defrost mode.
Do not drive the vehicle until all the windows are clear.
3-30

Outlet Adjustment
Use the tab located on the air outlets to change the
direction of the airow.
Operation Tips

Clear away any ice, snow or leaves from the air
inlets at the base of the windshield that may
block the ow of air into your vehicle.
Use of non-GM approved hood deectors may
adversely affect the performance of the system.
Keep the area around the base of the instrument
panel console and air path under the seats clear
of objects to help circulate the air inside of
your vehicle more effectively.
Passenger Compartment Air Filter
The passenger compartment air lter removes certain
particles from the air including pollen and dust particles.
Reductions in airow, which may occur more often in
dusty areas, indicate that the lter may need to be
replaced. SeeScheduled Maintenance on page 6-4for
information on how often to replace the lter.
Notice:Driving without a passenger compartment
air lter in place can cause water and small
particles, like paper and leaves, to be pulled into
your climate control system which may cause
damage to it. Make sure you always replace the old
lter with a new one.
The passenger compartment air lter is located on the
passenger side of the engine compartment near the
battery. SeeEngine Compartment Overview on
page 5-14.
3-32

To acknowledge the message, press the RESET button.
The message reappears every ve minutes until this
condition changes.
If the REDUCED ENGINE POWER message is
displayed in combination with the COOLANT OVER
TEMPERATURE message, seeEngine Overheating
on page 5-31.
SERVICE ACTIVE HANDLING SYSTEM
This message displays if there is a problem with the
Active Handling System and your vehicle needs service.
The active handling system light on the instrument
panel cluster also turns on and a chime sounds.
See your dealer/retailer. When this message is
displayed, the system is not working. Adjust your driving
accordingly. SeeActive Handling System on page 4-7
for more information.
SERVICE AIR CONDITIONING
This message displays when the electronic sensors that
control the air conditioning and heating systems are
no longer working. Have the climate control system
serviced by your dealer/retailer if you notice a drop in
heating and air conditioning efficiency.
SERVICE ANTILOCK BRAKES
If this message displays while you are driving, stop as
soon as possible and turn the ignition off. Then start the
engine again to reset the system. If the message stays
on, or comes back on again while you are driving, your
vehicle is in need of service. See your dealer/retailer.
If the antilock brake system (ABS) warning light is on and
the regular brake system warning light is not on, you still
have brakes, but do not have ABS. If the regular brake
system warning light is also on, you do not have ABS and
there is a problem with the brakes. SeeAntilock Brake
System (ABS) Warning Light on page 3-42andBrake
System Warning Light on page 3-41.
If this message is displayed, the Traction Control
System (TCS) and the Active Handling System will also
be disabled. The DIC will scroll three messages:
SERVICE ANTILOCK BRAKES, SERVICE TRACTION
SYSTEM, and SERVICE ACTIVE HANDLING, and
the instrument panel cluster lights will come on along
with a chime. When the service message is displayed,
the computer controlled systems will not assist the
driver. Have the system repaired by your dealer/retailer
as soon as possible. Adjust your driving accordingly.
To acknowledge these messages, press the RESET
button.
3-67

DIC Vehicle Personalization
Many features on your vehicle can be personalized.
This means that the operation of these features can be
set to operate differently depending on who is driving
the vehicle. See “Personal Options” later in this section
for the features that you can personalize.
The personalization settings for other features are
automatically updated and saved as the driver adjusts
them. These include the following settings and presets:
The radio presets, tone, volume, fade, balance,
equalization (EQ) settings and source (radio or CD)
The last climate control setting
The Head-Up Display (HUD) position and dimming
level, if your vehicle has this feature
The instrument panel cluster dimming level and last
selected DIC display
Separate personalization settings are saved for
two different drivers. One of the keyless access
transmitters is assigned to driver 1. The other is
assigned to driver 2. The back of the keyless access
transmitters are labelled 1 or 2 to correspond to
each driver.The current driver’s preferences are recalled when one
of the following occurs:
The lock or unlock button on the keyless access
transmitter, labelled 1 or 2, is pressed.
The appropriate memory button, 1 or 2, located on
the driver’s door is pressed. SeeMemory Seat,
Mirrors and Steering Wheel on page 1-4for more
information.
A valid keyless access transmitter is detected upon
opening the driver’s door.
If more than one valid keyless access transmitter is
detected upon opening the driver’s door, the driver
preferences for the lowest driver number will be recalled.
If a keyless access transmitter that is not labelled 1 or 2
is used, the personalization system will not recognize
the transmitter. The Driver Information Center (DIC) will
not display a current driver number and the features
that are normally programmed through the DIC will be
set to the default states. Also, if the OPTION button
is pressed, the DIC does not display the menus used to
set personalizations, but instead displays OPTIONS
UNAVAILABLE for a few seconds.
3-75

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA
Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a specied government
test course. For example, a tire graded 150 would
wear one and a half (1.5) times as well on the
government course as a tire graded 100. The
relative performance of tires depends upon the
actual conditions of their use, however, and may
depart signicantly from the norm due to variations
in driving habits, service practices, and differences
in road characteristics and climate.
5-76

Checking Things Under the Hood......................5-12
Chemical Paint Spotting...................................5-96
Child Restraints
Child Restraint Systems...............................1-34
Infants and Young Children...........................1-30
Lower Anchors and Tethers for
Children..........................................1-36, 1-39
Older Children.............................................1-26
Securing a Child Restraint in the
Right Front Seat Position..........................1-39
Cigarette Lighter.............................................3-25
Cleaning
Aluminum or Chrome-Plated Wheels..............5-94
Cargo Cover and Convenience Net................5-90
Coated Moldings.........................................5-89
Convertible Top...........................................5-94
Exterior Lamps/Lenses.................................5-91
Fabric/Carpet..............................................5-88
Fiberglass Springs.......................................5-96
Finish Care.................................................5-92
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-90
Interior.......................................................5-87
Leather......................................................5-89
Removable Roof Panel.................................5-93
Tires..........................................................5-95
Underbody Maintenance...............................5-96Cleaning (cont.)
Washing Your Vehicle...................................5-91
Weatherstrips..............................................5-91
Windshield and Wiper Blades........................5-93
Climate Control System
Air Filter, Passenger Compartment.................3-32
Dual Automatic............................................3-26
Outlet Adjustment........................................3-32
Clock, Setting.................................................3-85
Clutch, Hydraulic.............................................5-27
Collision Damage Repair..................................7-12
Compass
...............................................2-37, 2-39
Competitive Driving, Racing or Other.................4-15
Control of a Vehicle.......................................... 4-3
Convenience Net............................................2-55
Convertible Top......................................2-62, 2-68
Coolant
Engine.......................................................5-28
Engine Temperature Gage............................3-44
Surge Tank Pressure Cap.............................5-31
Cooling System..............................................5-34
Courtesy Lamps.............................................3-19
Cruise Control................................................3-11
Cupholders....................................................2-53
Customer Assistance Information
Courtesy Transportation................................7-11
Customer Assistance for Text
Telephone (TTY) Users............................... 7-6
Customer Assistance Offices........................... 7-6
3

Customer Assistance Information (cont.)
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-7
Reporting Safety Defects to General Motors....7-16
Reporting Safety Defects to the
Canadian Government..............................7-16
Reporting Safety Defects to the
United States Government.........................7-16
Roadside Assistance Program......................... 7-8
Service Publications Ordering Information........7-17
D
Daytime Running Lamps..................................3-16
Defensive Driving............................................. 4-2
Diesel
Running Out of Fuel....................................2-36
Disc, MP3......................................................3-98
Diversity Antenna System...............................3-105
Doing Your Own Service Work........................... 5-4
Door
Automatic Door Lock....................................2-12
Locks........................................................2-10
Power Door Locks.......................................2-12
Programmable Automatic Door Unlock............2-12Driver Information Center (DIC).........................3-51
DIC Operation and Displays..........................3-52
DIC Vehicle Personalization..........................3-75
DIC Warnings and Messages........................3-57
Other Messages..........................................3-74
Driving
At Night.....................................................4-16
Before a Long Trip......................................4-18
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-18
Hill and Mountain Roads..............................4-18
In Rain and on Wet Roads...........................4-16
Rocking Your Vehicle to Get it Out.................4-24
Winter........................................................4-19
Dual Automatic Climate Control System.............3-26
E
EDR .............................................................7-18
Electrical System
Add-On Equipment......................................5-99
Engine Compartment Fuse Block.................5-104
Fuses and Circuit Breakers.........................5-100
Headlamp Wiring.........................................5-99
Instrument Panel Fuse Block.......................5-100
Power Windows and Other Power Options......5-99
Windshield Wiper Fuses...............................5-99
4