1999 BUICK RIVIERA window

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2-48
Mirror Operation
The right side of the button located at the bottom of the
mirror turns the electrochromic mirror on and off. To
turn on the automatic dimming feature, press MIRROR.
To turn off automatic dimming, press MIRROR again.
The green indicator light will be illuminated when this
feature is active.
Compass Operation
Press the COMPASS button once to turn the compass on
or off.
When the ignition and the compass feature are on, the
compass will show two character boxes for
approximately two seconds. After two seconds, the
mirror will display the compass heading.If, after two seconds, the display does not show a
compass heading (ªNº for North, for example), there
may be a strong magnetic field interfering with the
compass. Such interference may be caused by a
magnetic antenna mount, magnetic note pad holder or a
similar magnetic item.
Compass Calibration
If the letter ªCº should ever appear in the compass
window, the mirror may need calibration.
The mirror can be calibrated in one of two ways:

Drive the vehicle in circles at 5 mph (8 km/h) or less
until the display reads a direction, or

Drive the vehicle on your everyday routine.
Compass Variance
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to compensate
for compass variance if you live outside zone eight.
Under certain circumstances, as during a long distance
cross
-country trip, it will be necessary to adjust for
compass variance. Compass variance is the difference
between earth's magnetic north and true geographic
north. If not adjusted to account for compass variance,
your compass could give false readings.

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2-51 Convex Outside Mirror
Your passenger's side mirror is convex. A convex
mirror's surface is curved so you can see more from the
driver's seat.
CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right lane, you
could hit a vehicle on your right. Check your
inside mirror or glance over your shoulder before
changing lanes.
Heated Outside Rearview Mirror
When you operate the rear window defogger, a defogger
also warms the heated driver's and passenger's outside
rearview mirrors to help clear them of ice and snow. See
ªRear Window Defoggerº in the Index.
Automatic Dimming Outside Rearview
Mirror (Option)
If you have this feature, the driver's side outside mirror
will adjust for the glare of headlamps behind you. This
feature is controlled by the on and off settings on the
automatic electrochromic day/night rearview mirror. See
ªAutomatic Electrochromic Day/Night Rearview
Mirrorº earlier in this section.

3-
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Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Dual Automatic ComforTemp Climate Control
3
-5 Air Conditioning
3
-5 Heating
3
-6 Defogging and Defrosting
3
-6 Rear Window Defogger
3
-7 Passenger Zone Comfort Control
3
-7 Ventilation System
3
-9 Steering Wheel Controls for Climate
Control (Option)
3
-9 Audio Systems
3
-9 Setting the Clock3
-10 AM-FM Stereo with Cassette Tape
and Compact Disc Player with Automatic
Tone Control
3
-15 Theft-Deterrent Feature
3
-17 Audio Steering Wheel Controls (Option)
3
-18 Understanding Radio Reception
3
-18 Tips About Your Audio System
3
-19 Care of Your Cassette Tape Player
3
-20 Care of Your Compact Discs
3
-20 Care of Your Compact Disc Player
3
-20 Power Antenna Mast Care

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FRONT: This selection is used to defrost
the windshield by directing the airflow toward
the windshield.
If FRONT is selected while in the AUTO mode, the
fan speed and the air temperature from the front
defroster will vary. If a manual fan speed setting is
selected, the fan speed will remain at that selection until
another fan speed selection is made or the AUTO mode
is selected. To turn off FRONT, press the AUTO or
AIR FLOW button.
FRONT defrost will work better if any ice or snow is
cleared from the hood and the air inlet area between the
base of the windshield and the hood.
Air Conditioning
On very hot days, open the windows long enough to let
the hot air out. This reduces the time required to cool the
interior of the vehicle to a comfortable level. If thesystem is in the AUTO mode on very hot days, the
system will automatically enter the RECIRC mode and
the temperature door will be positioned at the full cold
position for maximum cooling. If the system is not in
the AUTO mode, RECIRC should be selected to provide
maximum cooling. You can choose the extreme comfort
setting of 60
F (16
C), but the system will not cool any
faster by choosing the extreme comfort setting.
Heating
On cold days, if the AUTO mode is selected, the system
will automatically direct the air toward the floor and the
temperature door will be positioned at the full hot
position. You can choose the extreme comfort setting of
90
F (32
C) but the system will not warm up any faster
by selecting the extreme comfort setting. If the outside
temperature is cold, the fan will be delayed to avoid
blowing cold air. Pushing the FAN, AIR FLOW or
FRONT buttons will override this delay, turn off the
AUTO mode and change the fan speed.

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3-6 Defogging and Defrosting
Use the FRONT button to quickly remove fog, frost or
ice from the windshield in extremely humid or
cold conditions.
Select the FRONT button to defrost the windshield. By
choosing this button, the airflow will be directed at the
windshield. Adjust your comfort level by pressing the
TEMP up or down arrow. The fan speed will be
controlled by the system. You can change the fan speed
by pressing the top of the FAN button to increase speed,
and the bottom of the button to decrease speed.
Rear Window Defogger
The lines you see on
the rear window warm
the glass. Press the button
to start warming your
window. An indicator light
in the button will glow
while the rear window
defogger is operating.At speeds above 30 mph (48 km/h), the rear defogger
will stay on until you press the REAR defogger button
again. At speeds below 30 mph (48 km/h), the rear
window defogger will turn off automatically after about
10 minutes of use. If you press it again, the defogger
will operate for about five minutes only. You can also
turn the defogger off by turning off the ignition.
NOTICE:
Scraping the inside of your rear window could
cut and damage the heater. Your warranty would
not cover this damage. Don't put decals there
because you might have to scrape them off.

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3-7 Passenger Zone Comfort Control
The front seat passenger can control the air temperature
in the right front passenger seating area.This system can be activated by turning the COMFORT
CONTROL knob on the passenger's door.
Adjust the temperature by turning the COMFORT
CONTROL knob toward COOLER or WARMER. This
control can be set up to 5
F or 3
C cooler or warmer
than the primary setting. Notice the lighted display
above the control which indicates the difference from
the main temperature setting.
Push the OFF button on the main control panel once to
turn off this part of the system.
Ventilation System
When the vehicle is moving, fresh air flows through the
air outlets. When the vehicle is not moving, you can get
fresh air by selecting any airflow choice (except the rear
window defogger) and any fan speed.

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Adjust the direction of airflow by moving the louvered
air outlets.You can also adjust the direction of the airflow to the
rear seating area.
Ventilation Tips

Keep the hood and front air inlet free of ice, snow or
any other obstruction such as leaves. The heater and
defroster will work better, reducing the chance of
fogging your windows.

Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.

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Here are some things you can check before a trip:

Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?

Wiper Blades: Are they in good shape?

Fuel, Engine Oil, Other Fluids: Have you checked
all levels?

Lamps: Are they all working? Are the lenses clean?

Tires: They are vitally important to a safe,
trouble
-free trip. Is the tread good enough for
long
-distance driving? Are the tires all inflated to the
recommended pressure?

Weather Forecasts: What's the weather outlook
along your route? Should you delay your trip a short
time to avoid a major storm system?

Maps: Do you have up
-to-date maps?
Highway Hypnosis
Is there actually such a condition as ªhighway hypnosisº?
Or is it just plain falling asleep at the wheel? Call it
highway hypnosis, lack of awareness, or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Don't let it
happen to you! If it does, your vehicle can leave the
road in less than a second, and you could crash and
be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:

Make sure your vehicle is well ventilated, with a
comfortably cool interior.

Keep your eyes moving. Scan the road ahead and to
the sides. Check your rearview mirrors and your
instruments frequently.

If you get sleepy, pull off the road into a rest, service
or parking area and take a nap, get some exercise, or
both. For safety, treat drowsiness on the highway as
an emergency.