climate control BUICK RANDEZVOUS 2004 User Guide

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.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear 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:Don’t use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs wouldn’t be
covered by your warranty. Do not attach a temporary
vehicle license, tape, a decal or anything similar
to the defogger grid.
3-34

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.To place the entire system in automatic mode,
do the following:
1. Press the driver’s temperature knob to turn the
system on.
2. Adjust the temperature to a comfortable setting.
Choosing the coldest or warmest temperature will
not cause the system to heat or cool any faster.
In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into your vehicle
until warmer air is available. Then, as the air warms,
it will be delivered through the instrument panel
outlets. The length of time needed for warm up will
depend on the outside temperature and the
length of time that has elapsed since your vehicle
was last driven.
3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature as
necessary.
4. To turn the system off, press the passenger’s knob.
3-35

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.
For quick cool down on hot days, do the following:
1. Select the vent mode.
2. Select the recirculation mode.
3. Select the coolest temperature.
4. Select the highest fan speed.
Using these settings together for long periods of time
may cause the air inside of your vehicle to become too
dry. To prevent this from happening, after the air
inside of your vehicle has cooled, turn the recirculation
mode off.
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):Pressing this button 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.
3-37

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can’t see or smell CO. It can cause
unconsciousness or death. See “Engine
Exhaust” in the Index. To maximize your safety
when towing a trailer:
Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
Keep the rear-most windows closed.
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. See “Climate Controls” in the
Index.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.
4-47

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, 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
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.
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.
5-71

Fuse Usage
11 Power Seats
12Electronic Level Control (ELC)
Compressor
13 Liftgate and Endgate
14 Rear Auxiliary Power Outlet
15Electronic Level Control (ELC)
Compressor Relay and Height
Sensor
16 Heated Mirrors
17 Power Mirrors
18 Ignition 1 Module
19 Turn Signal Switch
21 Rear Defogger
22 Air Bag Module
24 TCC Switch
25 HVAC Blower Motor
26HVAC Mode and Temperature
Motors and Head-Up Display
28 Not Used
29 Windshield Wipers and Washer
30Instrument Panel Cluster, Body
Control Module (BCM),
PASS-Key
®III
31 Park Lock Ignition Key Solenoid
Fuse Usage
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
41Instrument Panel Cluster, Climate
Control, Security LED and Remote
Keyless Entry Mode
42 PASS-Key
®III
44 Body Control Module (BCM)
Relay Usage
20 Rear Defogger Relay
23 Ignition Relay
27 Accessory Relay
33 Retained Accessory Power Relay
43 Accessory Diode
5-111

Fuse Usage
41Main Battery Fuse for Retained
Accessory Power Relay and
Accessory Relay
42Main Battery Fuse for Heated Seats,
Air
45Main Battery Fuse for Power
Outlets, Level Control, Power Seats
and Mirrors and Body Computer
47Main Battery Fuse for Climate
Control Blower and Ignition 3 Relay
48Main Battery Fuse for Ignition
Switch, Radio, Heads-Up Display,
Remote Keyless Entry (RKE),
Instrument Cluster, Air Conditioning
and Body Computer
70
§Diode for Air Conditioning
Compressor Clutch
Relay Usage
A Back-Up Lamps
50 Horn
51 Fuel Pump
52 Air Conditioning Clutch
53 Daytime Running Lamps (DRL)
54 Low-Beam Headlamps
55 Parking Lamps
56 High-Beam Headlamps
57 Fog Lamps
58 Starter Relay
59 Cooling Fan
60 Ignition 1 Relay
61 Cooling Fan
62 Cooling Fan
63 Empty
5-114

Cleaning Tires..............................................5-105
Cleaning Vinyl..............................................5-101
Climate Control System...................................3-28
Dual..........................................................3-32
Dual Automatic............................................3-35
Outlet Adjustment........................................3-38
Compact Spare Tire........................................5-98
Compass Variance..........................................3-60
Content Theft-Deferrent....................................2-15
Control of a Vehicle.......................................... 4-7
Convenience Center, Rear...............................2-44
Convenience Net............................................2-44
Coolant
Engine Temperature Gage............................3-46
Engine Temperature Warning Message...........3-51
Heater, Engine............................................2-22
Cooling System..............................................5-29
Cruise Control................................................3-11
Cupholder(s)..................................................2-39
Current and Past Model Order Forms................7-13
Customer Assistance Information
Courtesy Transportation.................................. 7-8
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-5
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons
with Disabilities.......................................... 7-6Customer Assistance Information (cont.)
Reporting Safety Defects to General Motors....7-11
Reporting Safety Defects to the Canadian
Government............................................7-11
Reporting Safety Defects to the United States
Government............................................7-11
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps (DRL).........................3-15
Defensive Driving............................................. 4-3
Defogging and Defrosting.................3-30, 3-34, 3-37
Delayed Lighting.............................................3-18
Delayed Locking.......................................2-9, 3-68
Dinghy Towing................................................4-34
Disarming with the Remote Keyless Entry
Transmitter.................................................2-16
Disarming with Your Key..................................2-16
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-35
Door
Ajar Warning Message.................................3-54
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
4

Door (cont.)
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-10
Driver
Four-Way Manual Seat.................................. 1-3
Position, Safety Belt.....................................1-28
Driver Behavior................................................ 4-2
Driver Information Center (DIC).........................3-60
DIC Controls and Displays............................3-62
DIC Vehicle Personalization..........................3-64
Driving
At Night.....................................................4-18
City...........................................................4-23
Defensive..................................................... 4-3
Drunken....................................................... 4-4
Environment................................................. 4-2
Freeway.....................................................4-24
Hill and Mountain Roads..............................4-26
In Rain and on Wet Roads...........................4-20
Winter........................................................4-28
Driving On Grades..........................................4-49
Driving on Snow or Ice....................................4-29
Driving Through Deep Standing Water...............4-22
Driving Through Flowing Water.........................4-22
Driving with a Trailer.......................................4-47
Dual Automatic Climate Control System.............3-35
Dual Climate Control System............................3-32DVD
Cleaning Your DVD Player..........................3-131
Distortion..................................................3-129
Rear Seat Entertainment System..................3-113
DVD Messages.............................................3-119
DVD Player..................................................3-116
E
Electrical System
Add-On Equipment.....................................5-108
Fuses and Circuit Breakers.........................5-109
Headlamp Wiring.......................................5-108
Power Windows and Other Power Options....5-109
Windshield Wiper Fuses.............................5-109
Emissions Inspection and Maintenance
Programs...................................................3-49
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-42
Change Oil Message...................................3-53
Check and Service Engine Soon Light............3-46
Coolant......................................................5-23
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-46
Coolant Temperature Warning Message..........3-51
5