climate control BUICK RANDEZVOUS 2007 User Guide

Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
window defogger on or off. An indicator light in the
button will come on to let you know that the
rear window defogger is activated.
The rear window defogger will turn off
approximately 10 minutes after the button is
pressed. If turned on again, the defogger will only
run for approximately ve minutes before
turning off. The defogger can also be turned off by
pressing the button again or by turning off the
engine.
Notice:Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, and the
repairs would not be covered by your warranty.
Do not attach a temporary vehicle license,
tape, a decal or anything similar to the
defogger grid.
Dual Climate Control System
Your vehicle may have a dual climate control
system. With this system you can control
the heating, cooling, and ventilation for your
vehicle.
Operation
Turn the right knob clockwise or counterclockwise
to direct the airow inside your vehicle.
203

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.Turn the right knob to select the defog or
defrost 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.
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 turn 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.
205

Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
window defogger on or off. An indicator light in the
button will come on to let you know that the
rear window defogger is activated.
The rear window defogger will turn off
approximately 10 minutes after the button is
pressed. If turned on again, the defogger will only
run for approximately ve minutes before
turning off. The defogger can also be turned off by
pressing the button again or by turning off the
engine.
Notice:Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, and the
repairs would not be covered by your warranty.
Do not attach a temporary vehicle license,
tape, a decal or anything similar to the
defogger grid.
Dual Automatic Climate Control
System
Your vehicle may have the dual automatic climate
control system. With this system you can control
the heating, cooling, and ventilation for your
vehicle.
Automatic Operation
AUTO (Automatic):When the driver’s
temperature knob is pressed to select AUTO and
the temperature is set, the system will
automatically control the inside temperature, the
air delivery and the fan speed. AUTO will also
appear on the display.
206

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.
209

CAUTION: (Continued)

If exhaust does come into your vehicle
through a window in the rear or
another opening, drive with your front,
main heating or cooling system on
and with the fan on any speed. This
will bring fresh, outside air into your
vehicle. Do not use the climate control
setting for maximum air because it
only recirculates the air inside your
vehicle. SeeClimate Control System
on page 200.
Towing a trailer requires a certain amount of
experience. Before setting out for the open road,
you will want to get to know your rig. Acquaint
yourself with the feel of handling and braking with
the added weight of the trailer. And always
keep in mind that the vehicle you are driving is
now a good deal longer and not nearly as
responsive as your vehicle is by itself.Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connector,
lamps, tires and mirror adjustment. If the trailer has
electric brakes, start your vehicle and trailer
moving and then apply the trailer brake controller
by hand to be sure the brakes are working.
This lets you check your electrical connection at
the same time.
During your trip, check occasionally to be sure
that the load is secure, and that the lamps and any
trailer brakes are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead
as you would when driving your vehicle without
a trailer. This can help you avoid situations
that require heavy braking and sudden turns.
Passing
You will need more passing distance up ahead
when you are towing a trailer. And, because
you are a good deal longer, you will need to go
much farther beyond the passed vehicle
before you can return to your lane.
347

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.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA,
A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured under
controlled conditions on specied government test
surfaces of asphalt and concrete. A tire marked C
may have poor traction performance.Warning:The traction grade assigned to this
tire is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Temperature – A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire’s resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specied indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The
grade C corresponds to a level of performance
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel than
the minimum required by law.
Warning:The temperature grade for this tire is
established for a tire that is properly inated
and not overloaded. Excessive speed,
underination, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
421

Fuse Usage
26HVAC Mode and Temperature
Motors and Head-Up Display
28 Accessory Power
29 Windshield Wipers and Washer
30Instrument Panel Cluster,
Body Control Module (BCM),
PASS-Key
®III
31 Park Lock Ignition Key Solenoid
32 Rear Window Wiper/Washer
34 Power Sunroof
35 Power Windows
36Map Lamps, Courtesy Lamps and
Instrument Panel Lights
37 Radio
38 UQ3 Radio Amplier
39 Head-Up Display
40 Hazard Flashers
Fuse Usage
41Instrument Panel Cluster, Climate
Control, Security LED and Remote
Keyless Entry Mode
42 PASS-Key
®III
44 Body Control Module (BCM)
46Automatic Occupant Sensing
Module
Relay Usage
20 Rear Defogger Relay
23 Ignition Relay
27 Accessory Relay
33 Retained Accessory Power Relay
43 Accessory Diode
45 Back-Up Lamps
465

Fuse Usage
39 Engine Cooling Fan 1
40Main Battery Fuse for Retained
Accessory Power Relay and
Accessory Relay
41Main Battery Fuse for Heated Seats,
Air Conditioning, Defogger
44Main Battery Fuse for Power
Outlets, Level Control, Power Seats,
Mirrors, and Body Computer
46Main Battery Fuse for Climate
Control Blower and Ignition 3 Relay
47Main Battery Fuse for Ignition
Switch, Radio, Heads-Up Display
(HUD), Remote Keyless Entry
(RKE), Instrument Cluster, Air
Conditioning, and Body Computer
70
§Diode for Air Conditioning
Compressor Clutch
§71Diode for Ignition
Relay Usage
49 Horn
50 Fuel Pump
51 Air Conditioning Clutch
52 Daytime Running Lamps (DRL)
53 Low-Beam Headlamps
54 Parking Lamps
55 High-Beam Headlamps
56 Fog Lamps
57 Starter Relay
58 Cooling Fan Series/Parallel
59 Powertrain
60 Cooling Fan 2
61 Cooling Fan 1
62 Ignition
468

Carbon Monoxide..............118, 140, 327, 340
Care of
Safety Belts............................................. 455
Your CD and DVD Player........................ 298
Your CDs and DVDs................................ 298
Cargo Cover............................................... 165
Cargo Lamp................................................ 192
Cell Phone Storage Area............................. 159
Center Rear Passenger Position,
Safety Belts............................................... 51
Chains, Tire................................................. 424
Change Engine Oil Message....................... 230
Charging System Indicator Message............ 228
Check
Engine Light............................................ 222
Tire Pressure System............................... 414
Check Gas Cap Message........................... 231
Checking Things Under the Hood................ 362
Chemical Paint Spotting.............................. 459
Child Restraints
Child Restraint Systems............................. 64
Infants and Young Children........................ 60
Lower Anchors and Tethers for Children..... 69
Older Children........................................... 57
Securing a Child Restraint in a Rear
Outside Seat Position............................. 79Child Restraints (cont.)
Securing a Child Restraint in the Center
Rear Seat Position................................. 82
Securing a Child Restraint in the Right
Front Seat Position................................. 84
Where to Put the Restraint........................ 68
Cigarette Lighter.......................................... 200
Cleaning
Aluminum or Chrome-Plated Wheels........ 457
Exterior Lamps/Lenses............................. 456
Fabric/Carpet........................................... 453
Finish Care.............................................. 456
Inside of Your Vehicle .............................. 451
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 454
Leather.................................................... 454
Tires........................................................ 458
Underbody Maintenance........................... 459
Washing Your Vehicle .............................. 455
Weatherstrips........................................... 455
Windshield, Backglass, and
Wiper Blades........................................ 457
Climate Control System............................... 200
Dual......................................................... 203
Dual Automatic......................................... 206
Outlet Adjustment..................................... 210
515

Driver Information Center (DIC) (cont.)
DIC Vehicle Personalization..................... 240
Driving
At Night................................................... 317
City.......................................................... 321
Defensive................................................. 302
Drunken................................................... 303
Freeway................................................... 322
Hill and Mountain Roads.......................... 325
In Rain and on Wet Roads...................... 318
Rocking Your Vehicle to Get it Out.......... 332
Winter...................................................... 327
Dual Automatic Climate Control System....... 206
Dual Climate Control System....................... 203
DVD
Rear Seat Entertainment System............. 277
E
Electrical System
Add-On Equipment................................... 462
Floor Console Fuse Block........................ 463
Fuses and Circuit Breakers...................... 463
Headlamp Wiring..................................... 462
Power Windows and Other Power
Options................................................. 462
Underhood Fuse Block............................. 466Electrical System (cont.)
Windshield Wiper Fuses........................... 462
Engine
Air Cleaner/Filter...................................... 370
Battery..................................................... 393
Change Oil Message............................... 230
Check and Service Engine Soon Light..... 222
Coolant.................................................... 375
Coolant Heater......................................... 131
Coolant Temperature Gage...................... 221
Coolant Temperature Warning Message ... 227
Drive Belt Routing.................................... 487
Engine Compartment Overview ................ 364
Exhaust................................................... 140
Oil ........................................................... 365
Oil Life System........................................ 368
Overheated Protection Operating Mode.... 380
Overheating............................................. 378
Reduced Power Message........................ 228
Starting.................................................... 129
Entry Lighting.............................................. 189
Event Data Recorders (EDR)...................... 503
Exit Delay, Headlamp.................................. 189
Exit Lighting................................................ 190
Extender, Safety Belt..................................... 56
Exterior Lamps............................................ 185
517