1999 CADILLAC CATERA air conditioning

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2-49 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 Rearview Mirrors
The manual folding outside rearview mirrors are heated.
To heat the mirrors, press the rear window defogger
button. See ºRear Window Defoggerº in the Index.
Manual Folding Outside Rearview Mirrors
The driver's and passenger's outside mirrors move
forward and rearward (ªbreak
-awayº) to help prevent
injury and/or damage to your vehicle.
Storage Compartments
Glove Box
The glove box is located in front of the passenger's seat.
To lock the glove box door, insert the key in the lock
cylinder and turn it clockwise. Turn the key
counterclockwise to unlock the door.
The glove box is air conditioned. This helps to keep
snack items cool while traveling. In order for cool air to
enter the glove box, the air conditioning must be turned
on. Use the slide control inside and at the rear of the
glove box to turn the air flow on and off. Moving the
slide control over the small hole turns the cool air off
and moving the control away from the hole turns the
cool air on.
Map Pockets
The map/storage pockets are located on each front door
as well as on the passenger's and driver's front
seatbacks. Also located on the driver's door map pocket
is a coin holder.

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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 Electronic Climate Control (ECC)
3
-3 Automatic Operation
3
-4 Manual Operation
3
-6 Air Conditioning
3
-6 Heating
3
-6 Defrosting
3
-7 Rear Window Defogger
3
-7 Ventilation System
3
-9 Audio Systems
3
-9 Setting the Clock
3
-9AM-FM Stereo with Cassette Tape Player
3
-13 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
Systems (RDS) (If Equipped)3
-22 Radio Data Systems (RDS) Program Type
(PTY) Selections
3
-23 CD Adapter Kits
3
-23 Trunk-Mounted CD Changer (Option)
3
-27 Theft-Deterrent Feature
3
-27 Audio Steering Wheel Controls
3
-28 Understanding Radio Reception
3
-28 Tips About Your Audio System
3
-29 Care of Your Cassette Tape Player
3
-30 Care of Your Compact Discs
3
-31 Care of Your Compact Disc Player
3
-31 Heated Backlite Antenna

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In cold weather, when the system senses the need for
heat, airflow will be directed out of the floor outlets. As
the interior temperature approaches a desired setting, the
blower speed will decrease. To maintain interior
comfort, the airflow may move to the instrument panel
air outlets and floor outlets (bi
-level mode). On bright
sunny days in cold weather, the airflow may come out of
the air conditioning outlets (AC mode) to maintain
comfort and prevent stuffiness.
If your vehicle is sitting out on a hot day and you have
the climate control system set for automatic operation,
the air will first flow out of the floor air outlets during
cool down. That is normal. This is to remove hot air
from the air outlets. As the air is cooled, the airflow will
move through the air conditioning outlets.
To avoid blowing cold air in cold weather, the system
will delay turning on the fan until warm air is available.
The length of delay depends on the outside air
temperature, engine coolant temperature or the time
since the engine was last started. As the coolant warms
up, the blower fan speed will gradually increase and air
will flow from the heater outlets, with some airflow to
the windshield to prevent fogging under most
normal conditions.If you leave your vehicle, the system will remember the
control setting the next time you start your engine,
except for recirculation and rear defrost (heated
backlite). Each ignition cycle cancels recirculation.
Manual Operation
You may manually adjust the air delivery mode or
fan speed.
HEATER/DEFROST: This setting directs air to
the floor outlets and toward the windshield.
AC: This setting directs airflow through the middle
instrument panel outlets.
BI-LEVEL: This setting directs air into your
vehicle in two ways. Cool air is directed to the upper
portion of your body through the middle instrument
panel outlets while warm air is directed to the floor.
HEATER: This setting directs warm air through
the floor outlets. Some warm air is sent to the
windshield to minimize fogging.

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DEFROST: Press this button to quickly remove
fog or frost from the windshield (the blower works in
high
-speed). This setting sends most of the airflow to
the windshield with only a small amount to the
floor outlets.
FAN SPEEDS: Press the driver's side
TEMP/AUTO knob to set the fan speed for AUTO. At
this setting, the fan speed is automatically controlled. If
it is cold outside, the blower may not run in the
maximum high fan speed right away. The system checks
the temperature of the engine coolant to assure it is
warm enough to provide heat. When the engine coolant
is warm, the controller allows the fan to gradually
increase to a higher speed. This prevents cold air from
blowing into the passenger compartment. If you want
the blower fan at a high speed, press the up arrow button
until you reach the highest position of the display. If you
want the blower fan at a low speed, press the down
arrow button until the lowest position is displayed.ON/OFF: Press this button to turn the system off. Press
this button again to turn the system back on. Turning the
climate control system on in this way will recall all
previous manually set mode settings. If the system is
turned on by pushing the driver's TEMP/AUTO knob for
automatic operation, all of the previous manually set mode
settings will be changed back to the fully automatic mode.
AC: Press this button to turn the air conditioning on and
off. The system will cool and dehumidify the air inside
the vehicle. In the automatic operation mode, the display
will show AC OFF when the air conditioning has been
turned off.
RECIRCULATION: Press this button to limit the
amount of fresh air entering your vehicle. This is helpful
to limit odors entering your vehicle. In the automatic
operation mode, the system will use recirculation as
necessary to cool the air. Pressing the recirculation
button will change the operation to a manual mode and
the air will recirculate non
-stop. Press this button again
to turn off the recirculation feature.
If you notice the windows fogging, press the
recirculation button to exit the recirculation mode.

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3-6 Air Conditioning
On hot days, open the windows long enough to let hot
inside air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
The climate control system will cool and dehumidify the
air inside the vehicle. While in the automatic operation
mode, the system will use recirculation as necessary to
cool the air. You may also need to adjust the interior
temperature. Turn either the TEMP/AUTO or
TEMP/OFF knob clockwise to increase the temperature
or counterclockwise to decrease temperature. Adjust the
fan speed as needed.
In order to obtain the maximum cool setting, both the
driver's TEMP/AUTO knob and the passenger's
TEMP/OFF knob must be turned to 60
F (16
C).
Heating
Adjust the interior temperature to your comfort level by
turning the TEMP/AUTO knob or the TEMP/OFF knob
clockwise to increase the temperature or
counterclockwise to decrease the temperature. If the fan
speed needs adjusting, press the up or down arrow.Outside air will be brought in and sent through the floor
outlets. The heater works best if you keep the windows
closed while using it.
In order to obtain the maximum heat setting, both the
driver's TEMP/AUTO knob and the passenger's
TEMP/OFF knob must be turned to 90
F (32
C).
Defrosting
Use defrost to remove fog or ice from the windshield
quickly in extremely humid or cold conditions.
Pressing the defrost button on the control panel (located
above the rear window defogger button) automatically
turns the fan blower to high speed. Make sure that the
side air vents are opened. Turn both the TEMP/AUTO
knob and the TEMP/OFF knob clockwise as needed to
adjust the temperature. To warm the foot area while in
defrost, press the MODE button until the heater/defrost
symbol appears (see ªManual Operationº earlier in
this section).
Note: Recirculation is not available in the defrost mode.

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3-7 Rear Window Defogger
The lines you see on the
rear window warm the
glass. With your vehicle's
engine running, press this
button to turn on the
rear defogger.
The rear window defogger heats the rear window and
both outside rearview mirrors. The system will
automatically shut off after about 15 minutes. If further
defogging is desired, press the button again.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.NOTICE:
Do not try to clear frost or other material from
the inside of the rear window with a razor blade
or anything else that is sharp. This may damage
the rear defogger grid. The repairs wouldn't be
covered by your warranty.
Ventilation System
The ventilation system supplies outside air into the
vehicle when it is moving. Outside air will also enter the
vehicle when the heater or the air conditioning fan
is running.

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Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Fuels in Foreign Countries
6
-5 Filling Your Tank
6
-8 Checking Things Under the Hood
6
-11 Engine Oil
6
-15 Engine Air Cleaner/Filter
6
-18 Automatic Transmission Fluid
6
-19 Rear Axle
6
-20 Surge Tank Pressure Cap
6
-20 Engine Coolant
6
-24 Power Steering Fluid
6
-25 Windshield Washer Fluid
6
-26 Brakes
6
-29 Battery
6
-30 Bulb Replacement
6
-36 Wiper Blade Replacement6
-37 Tires
6
-46 Appearance Care
6
-46 Cleaning the Inside of Your Vehicle
6
-48 Care of Safety Belts
6
-49 Cleaning the Outside of Your Vehicle
6
-51 Cleaning Aluminum or Chrome-Plated
Wheels (If Equipped)
6
-52 Underbody Maintenance
6
-53 GM Vehicle Care/Appearance Materials
6
-54 Vehicle Identification Number (VIN)
6
-54 Service Parts Identification Label
6
-55 Electrical System
6
-62 Replacement Bulbs
6
-62 Capacities and Specifications
6
-63 Air Conditioning Refrigerants
6
-63 Normal Maintenance Replacement Parts

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6-63 Wheel Bolt Torque
80 lb-ft (110 N´m)
Engine Specifications
Displacement 181 cubic inches (2 962 cc). . . . . . . . .
Type 3.0 L DOHC V6. . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code R. . . . . . . . . . . . . . . . . . . . . . . . . . .
Horsepower 200 (bhp) @ 6000 rpm. . . . . . . . . . . . . .
149 (kW) @ 6000 rpm
Torque 192 (lb
-ft) @ 3600 rpm . . . . . . . . . . . . . . . . .
260 (N´m) @ 3600 rpm
Firing Order 1
-2-3-4-5-6 . . . . . . . . . . . . . . . . . . . . . .
Thermostat Starts To Open 198
F (92
C) . . . . . . . . .
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used.
If you're not sure, ask your dealer.
Normal Maintenance
Replacement Parts
Air Filter Element 90509318. . . . . . . . . . . . . . . . . . .
Fuel Filter Element 90542540. . . . . . . . . . . . . . . . . .
Engine Oil Filter 25010792. . . . . . . . . . . . . . . . . . . .
Passenger's Compartment Air Filter 90510338. . . . .
Spark Plugs 90541059 (Bosch Plug = FLR9LTE). . .
Thermostat 90502201. . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Blades 9118382 (RH). . . . . . . . . . .
9118381 (LH)
Vehicle Dimensions
Wheel Base 107.5 inches (273.0 cm). . . . . . . . . . . . .
Length 194.0 inches (492.8 cm). . . . . . . . . . . . . . . . .
Height 56.4 inches (143.2 cm). . . . . . . . . . . . . . . . . . .
Width 70.3 inches (178.6 cm). . . . . . . . . . . . . . . . . . .
Front Tread 59.3 inches (150.6 cm). . . . . . . . . . . . . . .
Rear Tread 59.8 inches (152.0 cm). . . . . . . . . . . . . . .