1999 BUICK RIVIERA heating

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Trunk
CAUTION:
It can be dangerous to drive with the trunk lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can't see or smell
CO. It can cause unconsciousness and even death.
If you must drive with the trunk lid open or if
electrical wiring or other cable connections must
pass through the seal between the body and the
trunk lid:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on VENT. That will force outside air into
your vehicle. See ªComfort Controlsº in
the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.
Trunk Lock Release
To unlock the trunk from the outside, turn the lock cover
to expose the key hole. Insert the door key and turn it.
Remote Trunk Release
Press the TRUNK release
button located below the
driver's door handle to
release the trunk lid. The
trunk will open if the
transaxle is in PARK (P)
and if the trunk release
lockout is not off.
If you have the remote keyless entry system, it also
will unlock your trunk if the ignition is off, or if the
ignition is on and the transaxle is in PARK (P) or
NEUTRAL (N).

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2-57 Convenience Net
Your vehicle has a convenience net. You'll see it just
inside the back wall of the trunk.
Put small loads, like grocery bags, behind the net. It can
help keep them from falling over during sharp turns or
quick starts and stops. For heavier loads, store them in
the trunk as far forward as you can.
There are six retainers to secure the convenience net,
allowing two different placements for the net. You can
unhook the net so that it will lie flat when you're not
using it. When reinstalling the net, make sure the label
points toward the upper retainer.
Ashtrays and Cigarette Lighter
NOTICE:
Don't put papers or other flammable things into
your ashtrays. Hot cigarettes or other smoking
materials could ignite them, causing a
damaging fire.
Front Ashtray
The front ashtray is behind a panel above the compact
disc storage area. Press on the panel door to reveal the
ashtray and cigarette lighter.
The front center ashtray may be lifted out for cleaning.
Press the tabs on each side of the ashtray and pull up to
remove. It snaps back into place.
Rear Ashtray
To remove the rear ashtray for cleaning, open the lid and
ease the ashtray upward until the edge can be grasped to
pull the ashtray up and out.
Cigarette Lighter
To use the cigarette lighter, push it all the way in and let
it go. When it is hot, it will pop back by itself.
NOTICE:
If you hold a cigarette lighter in with your hand
while it is heating, it won't be able to back away
from the heating element when it's ready. This
can make it overheat, damaging the lighter and
the heating element.

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2-72

If there's a brake system problem that is specifically
related to traction control, the traction control system
will turn off and the warning light will come on. If
your brakes begin to overheat, the traction control
system will turn off and the warning light will come
on until your brakes cool down.

If the traction control system is affected by an
engine
-related problem, the system will turn off and
the warning light will come on.
If the traction control system warning light comes on
and stays on for an extended period of time when the
system is turned on, your vehicle needs service.
Engine Coolant Temperature
Warning Light
This light tells you that your
engine coolant has
overheated or your radiator
cooling fan is not working.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop
your vehicle and turn the engine off as soon as possible.
The ªProblems on the Roadº section in this manual
explains what to do. See ªEngine Overheatingº in
the Index.

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2-73 Engine Coolant Temperature Gage
Your vehicle has a gage that
shows the engine coolant
temperature. If the gage
pointer moves into the red
area, your engine is too hot!
This reading means the same thing as the warning light.
It means that your engine coolant has overheated. If you
have been operating your vehicle under normal driving
conditions, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible.
The ªProblems on the Roadº section in this manual
explains what to do. See ªEngine Overheatingº in
the Index.
Low Coolant Warning Light
When this light comes on,
the cooling system is low
on coolant.
As a bulb check, it will come on for two to four seconds
and then go off when the ignition is in RUN. If the light
doesn't come on, have the vehicle serviced.
If the coolant level is low, the light will come back on
and a warning chime will sound. If this happens, see
ªEngine Coolantº in the Index for the proper cooling
system fill procedure.
After the coolant level is returned to its proper level, the
LOW COOLANT light will go off after 20 seconds or
remain off during the next ignition cycle.

3-
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3-1
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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3-5
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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4-37 Turn Signals When Towing a Trailer
The arrows on your instrument panel will flash
whenever you signal a turn or lane change. Properly
hooked up, the trailer lamps will also flash, telling other
drivers you're about to turn, change lanes or stop.
When towing a trailer, the arrows on your instrument
panel will flash for turns even if the bulbs on the trailer
are burned out. Thus, you may think drivers behind
you are seeing your signal when they are not. It's
important to check occasionally to be sure the trailer
bulbs are still working.
Your vehicle has bulb warning lights. When you plug a
trailer lighting system into your vehicle's lighting
system, its bulb warning lights may not let you know if
one of your lamps goes out. So, when you have a trailer
lighting system plugged in, be sure to check your
vehicle and trailer lamps from time to time to be sure
they're all working. Once you disconnect the trailer
lamps, the bulb warning lights again can tell you if one
of your vehicle lamps is out.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don't shift
down, you might have to use your brakes so much that
they would get hot and no longer work well.
On a long uphill grade, use the highest gear possible.
If you cannot maintain posted speeds, driving at a
lower speed may help avoid overheating your engine
and transaxle.
Parking on Hills
CAUTION:
You really should not park your vehicle, with a
trailer attached, on a hill. If something goes
wrong, your rig could start to move. People can
be injured, and both your vehicle and the trailer
can be damaged.

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But if you ever have to park your rig on a hill, here's
how to do it:
1. Apply your regular brakes, but don't shift into
PARK (P) yet.
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brake until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking
brake, and then shift to PARK (P).
5. Release the regular brakes.
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:

Start your engine;

Shift into a gear; and

Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you're
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don't overfill),
engine oil, drive belts, cooling system and brake system.
Each of these is covered in this manual, and the Index
will help you find them quickly. If you're trailering, it's
a good idea to review this information before you start
your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See ªEngine Overheatingº
in the Index.