2007 BUICK RANDEZVOUS air condition

To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs approximately
half of the air to the instrument panel outlets, then
directs the remaining air to the oor outlets and
the defroster and side window outlets. Cooler air is
directed to the upper outlets and warmer air to
the oor outlets.
6(Floor):This mode directs most of the air to
the oor outlets. Use this mode to send air to
the rear of the vehicle. Keep the area under the
front seats free of objects that could obstruct
airow to the rear of the vehicle.
The MODE button can also be used to select
defog. For more information, see “Defogging and
Defrosting” later in this section.
9(Fan):Press this button to increase to
decrease the fan speed; keep pressing the up or
down arrow until the desired fan speed appears
on the display.VENT:Press this button to turn the outside air
mode on or off. When this mode is on, outside air
will be circulated throughout your vehicle. VENT
can be used with all modes, but it cannot be used
with the recirculation mode.
@(Recirculation):This mode keeps outside air
from coming in the vehicle. It can be used to
prevent outside air and odors from entering your
vehicle or help heat or cool the air inside your
vehicle more quickly. Press this button to turn the
recirculation mode on or off. When the button
is pressed, an indicator light will come on.
The air-conditioning compressor also comes on.
The recirculation mode can be used with vent and
bi-level modes, but it cannot be used with oor,
defog, defrost or outside air modes.
Temperature Control:Use the DRIVER knob to
increase or decrease the air temperature inside
your vehicle. If the front passenger would like the
temperature to be warmer or cooler, use the
PASS knob to adjust the passenger’s temperature.
Air Conditioning:The air-conditioning
compressor will automatically come on when a
temperature cooler than the interior temperature is
chosen using the temperature knobs.
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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.
The air-conditioning system removes moisture
from the air, so you may sometimes notice a small
amount of water dripping underneath your
vehicle while idling or after turning off the engine.
This is normal.
Defogging and Defrosting
Fog on the inside of windows is a result of high
humidity, or moisture, condensing on the cool
window glass. This can be minimized if the climate
controls system is used properly. There are two
modes to clear fog or frost from your windshield.
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.Use the MODE button to select the defog mode.
-(Defog):This mode directs air to the
windshield and the oor 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.
Press the defrost button to select defrost.
0(Defrost):This mode directs most of the air to
the windshield and the side window outlets, with
some air directed to the oor outlets. In this mode,
the system will automatically turns off 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.
Do not drive the vehicle until all the windows are
clear.
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This light should come on, as a check to show
you it is working, when the ignition is on and the
engine is not running. If the light does not
come on, have it repaired. This light will also
come on during a malfunction in one of two ways:
Light Flashing— A misre condition has
been detected. A misre increases vehicle
emissions and may damage the emission
control system on your vehicle. Diagnosis and
service may be required.
Light On Steady— An emission control
system malfunction has been detected on your
vehicle. Diagnosis and service may be
required.
If the Light Is Flashing
The following may prevent more serious damage
to your vehicle:
Reducing vehicle speed
Avoiding hard accelerations
Avoiding steep uphill grades
If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possibleIf the light stops ashing and remains on steady,
see “If the Light Is On Steady” following.
If the light continues to ash, when it is safe to do
so, stop the vehicle. Find a safe place to park
your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service as
soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 359.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving trips
with the cap properly installed should turn the
light off.
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Passenger Seatbelt Reminder
Message
If your vehicle has the
passenger sensing
system, this message
reminds the passenger
to buckle their
seatbelt.
This message will come on and a chime will
sound when the following conditions exist:
The ignition is ON,
the passenger’s seatbelt is not buckled,
a passenger is detected by the passenger
sensing system.
This light and chime will be repeated if the
ignition is on, the vehicle is in motion,
the passenger is still unbuckled and the
passenger airbag is enabled. You should
buckle your seatbelt. If the passenger’s
seatbelt is already buckled, this message and
chime will not come on.
Service Traction System Warning
Message
If your vehicle has the Traction Control System
(TCS) and this message is displayed when you are
driving, there may be a problem with your TCS.
Your vehicle may need service.
When this message is displayed, the TCS will not
limit wheel spin. Adjust your driving accordingly.
If there is an engine-related and brake system
problem that is specically related to traction
control, the TCS will turn off and the warning
message will come on.
If the TCS warning message comes on and stays
on for an extended period of time when the
system is turned on, your vehicle needs service.
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226

Charging System Indicator Message
The charging system
battery symbol will
come on in the message
center when you turn
on the ignition as
a check to show you it
is working.
It will remain on as long as the engine is not
running. It should go out once the engine
is running. If it stays on, or comes on while you
are driving, you may have a problem with the
charging system. It could indicate that you have
problems with a generator drive belt, or another
electrical problem. Have it checked right away.
Driving while this indicator appears in the message
center could drain your battery.
If you must drive a short distance with the
message on, be certain to turn off all your
accessories, such as the radio and air conditioner.
Reduced Engine Power Message
If your vehicle has this feature, this message will
appear in the message center when a noticeable
reduction in the vehicle’s engine performance
is detected. This message will also appear when
your vehicle is in overheated engine protection
operating mode. SeeEngine Overheating on
page 378for more information.
If this message comes on and stays on, see your
dealer.
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228

XM Radio Messages
Radio Display Message Condition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
Updating Updating encryption code The encryption code in the receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When you move
into an open area, the signal should return.
Loading XM Acquiring channel audio
(after 4 second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
CH Off Air Channel not in service This channel is not currently in service. Tune to another
channel.
CH Unavail Channel no longer
availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the
presets, choose another station for that preset button.
No Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
No Info Song/Program Title
not availableNo song title information is available at this time on this
channel. The system is working properly.
No Info Category Name
not availableNo category information is available at this time on this
channel. The system is working properly.
No Info No Text/Informational
message availableNo text or informational messages are available at this time
on this channel. The system is working properly.
276

California Fuel
If your vehicle is certied to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specications. See the
underhood emission control label. If this fuel is not
available in states adopting California emissions
standards, your vehicle will operate satisfactorily on
fuels meeting federal specications, but emission
control system performance may be affected. The
malfunction indicator lamp may turn on and your
vehicle may fail a smog-check test. SeeMalfunction
Indicator Lamp on page 222. If this occurs, return to
your authorized GM dealer for diagnosis. If it is
determined that the condition is caused by the type
of fuel used, repairs may not be covered by your
warranty.
Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives that
will help prevent engine and fuel system deposits
from forming, allowing your emission control system
to work properly. In most cases, you should not
have to add anything to your fuel. However, some
gasolines contain only the minimum amount of
additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel
injectors and intake valves clean, or if your vehicle
experiences problems due to dirty injectors or
valves, look for gasoline that is advertised as TOP
TIER Detergent Gasoline. Also, your GM dealer
has additives that will help correct and prevent
most deposit-related problems.
357

Engine Air Cleaner/Filter
SeeEngine Compartment Overview on page 364
for the location of the engine air cleaner/lter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change after
each 50,000 mile (85 000 km) interval. See
Scheduled Maintenance on page 475for more
information. If you are driving in dusty/dirty
conditions, inspect the lter at each engine oil
change.
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/lter, remove the lter
from the vehicle and lightly shake the lter to
release loose dust and dirt. If the lter remains
caked with dirt, a new lter is required. Do not use
compressed air to clean the lter.
3.5L V6 Engine shown
370