1990 HONDA PRELUDE heating

Instrument Panel
TURN SIGNAL/ LIGHT SWITCH/
DIMMER SWITCH
SUNROOFSWITCH
HEADLIGHT

MOTOR
SWITCH PANEL BRIGHTNESS
CONTROL KNOB HAZARD WARNING
LIGHT SWITCH
FOG LAMP
SWITCH REAR WINDOW

DEFOGGER

SWITCH
DIGITAL
CLOCK

CENTER

VENTS

CRUISE
CONTROL
MASTER
SWITCH

FUSE BOX COIN BOX
HORN
BUTTON WINDSHIELD
WIPER/WASHER
SWITCH LEVER
IGNITION SWITCH CIGARETTE
LIGHTER
HEATING/
COOLING
CONTROL
PANEL
TACHOMETER SPEEDOMETER
FUEL GAUGESHIFT LEVER
POSITION
INDICATOR
(AUTOMATIC)
ODOMETER TRIP METER
TRIP METERRESET BUTTON SAFETY
INDICATOR
LIGHT

COOLANT
TEMPERATURE
GAUGEProCarManuals.comMain Menu t s

Cigarette Lighter and Ashtrays
Cigarette Lighter
Push in to heat up. It will automati-
cally release when the element is hot. DO NOT hold it in while it is

heating up.

Front Ashtray
Open the ashtray by lifting its lid.
To remove it, hold the lid, and pull
it toward you.

Rear Ashtray
Open the ashtray by pulling its
top edge.
To remove it, open the ashtray,
then pull it up and out. To install, reverse the removal procedure.
CAUTION:

Do not
use the ashtrays as trash containers; use them only for
extinguished cigarettes. Putting lit cigarettes or matches in an
ashtray with other combustible materials may cause a fire.
Push

Hold the lid, and pull.

To remove, pull up then out.ProCarManuals.comMain Menu t s

Heating and Cooling
The vents, heater and air conditioner are combined in one system; adjusting four basic controls to different settings can provide a fullrange of interior temperatures for safe and comfortable driving,
(Air conditioner is optional on the 2.0 S and 2.0 Si models.)
Ventilation
The flow-through ventilation system can provide fresh air to theinterior when the car is moving or stopped, even with the sunroof
and windows closed.

NOTE:

For proper air flow, the flow-through vents must not be covered.
Keep the air inlet at the base of the windshield free of leaves or
other debris.
You can adjust the controls to direct cool or warm outside air
throughout the car for defogging windows, heating, or cooling by
turning on the fan.

(cont'd)

AIR INLET

AIR OUTLET
AIR OUTLETProCarManuals.comMain Menu t s

Heating and Cooling (cont'd)
Dash Vents
The side and center vents can be tilted up or down, and their
louvers turned right or left, to change the direction of air flow.
SIDE DEFROSTER
OUTLET
SIDE VENT
WINDSHIELD DEFROSTER
OUTLETS

SIDE DEFROSTER
OUTLET
FLOOR OUTLETS SIDE VENTS
CENTER VENTSProCarManuals.comMain Menu t s

Heating and Cooling (cont'd)

NOTE:

The windows may become fogged if the system is in the
position for an extended period of time with the air

conditioner off. As soon as the interior is warmed, switch to the
position.
How to Use the Controls
To Ventilate Move the temperature lever to the left, and push the buttons. Turn the fan switch on and outside air will flow
through the side and center vents. To change air distribution, select
To Cool with A/C (optional on the 2.0 S and 2.0 Si models)
To cool the car down quickly, start the engine, then turn the fanswitch to high, push the A/C button on and open the windows briefly. Then close the windows, slide the temperature lever to the
When the interior has cooled desired speed, then push the (outside) air to the air conditioner.
When using the air conditioner in heavy traffic, or while driving up long hills, watch the coolant temperature gauge: if the needle movesnear the "H" end of the scale, turn the air conditioner off by
pushing the A/C button ; leave it off until the needle goes back well
into the middle of the scale.
and

the
ducts at the floor level. position and outside air will also flow from the heater
sufficiently, switch the fan to thebutton to direct fresh

and

left, push the
recirculate to the buttons, so inside air will
air conditioner for maximum cooling.ProCarManuals.comMain Menu t s

To Heat
Switch the fan on, slide the temperature lever to the right, push the
button, and warmed (outside) air will begin flowing from
the floor outlet.
Selecting the
direct a small amount of air through the dash vents in addition to the
floor outlets. button, will
button instead of the
To warm up the interior quickly, push in the inside air will recirculate to the heater. button so
position,
begin to fog while heating in the
to allow outside air to enter.
If the windows
switch to

To Defrost

To defrost or defog the windshield and
temperature lever to the right, push the door windows, slide the
(defrost) button,
switch on. Warmed
(outside) air will then flow from the windshield and side defroster

vents.
switch to the
setting, and turn the fanProCarManuals.comMain Menu t s

Heating and Cooling (cont'd)

To Dehumidify with A/C(optional on the 2.0 S and 2.0 Si models) Because an air conditioner dehumidifies as it works, you can use it
in cool or cold weather to help defog the windows. Just switch the
fan on, push the A/C button on, select the desired function and
adjust the temperature lever to a comfortable setting.
NOTE:
This setting is desirable for most operating conditions in ambient
temperatures above approximately 32°F (0°C).
To Turn Everything OFFSlide the temperature lever to the left, turn the fan switch off and push the

NOTE:

This setting should only be used in cold weather for the first few minutes of driving to prevent cold air from blowing into the cabin.
Under normal operating conditions, the fan should always be kept
ON to prevent the accumulation of stale air in the system. button on.ProCarManuals.comMain Menu t s

Engine Exhaust Gas Warning
A properly maintained car is your best protection against exhaust
gas entering the passenger compartment. The exhaust system should be thoroughly inspected by acompetent mechanic whenever:

The car is raised for an oil change.
You notice a change in the sound of the exhaust.
The exhaust system or the rear or underside of the car is

damaged.

Avoid breathing exhaust gases. They contain carbon monoxide, which is a colorless, odorless gas that can cause loss of
consciousness and eventual death. If you suspect that exhaust gas is entering the passenger compartment, have the cause
determined and corrected as soon as possible. If you must drive
under these conditions, drive only with all windows fully open. Do not drive with the trunk lid open. An open trunk may draw
exhaust gases into the passenger compartment. If you must
drive with the trunk lid open, drive only with all the windows
wide open.
Do not run the engine in confined areas, such as garages, any
longer than necessary to move the car in or out. If you must sit in a parked car with the engine running for more
than a short time, adjust the heating/ventilation system as
follows:
1. Push the
and buttons on.
2. Set the temperature lever for best comfort.
3.Turn the fan to the highest speed.

NOTE:

To insure proper operation of the car's ventilation system, keep the
front air inlet clear of snow, mud, leaves or other obstructions.ProCarManuals.comMain Menu t s