heating Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60A45U)

SWITCHES
37
SEAT HEATER SWITCHES
The seat heater has two dials; one marked “L” (for the
driver’s seat) and the other marked “R” (for the front
passenger’s seat). To turn the seat heaters on, turn the
dials forward. The indicator lights come on. To turn them
off, turn the dials backward until they stop. The indicator
lights go off.
You can adjust the heating temperature to 5 stages. To
increase the temperature, turn them forward. To decrease the
temperature, turn them backward.
The ignition key must be in the “ON” position.
CAUTION
Occupants must use caution when operating the seat
heater because they may experience minor burns even
at low temperatures. Use extra caution for;
 Babies, small children, elderly persons, sick persons
or handicapped persons
 Persons who have delicate skin
 Persons who are exhausted
 Persons who have taken alcohol or drugs which
induce sleep (sleeping drug, cold remedy, etc.).
To prevent the seat from overheating, do not use the
seat heater with a blanket, cushion, or other insulating
objects which cover the seat.
NOTICE
 Do not put unevenly weighted objects on the seat and
do not stick sharp objects (needles, nails, etc.) into
the seat.
 When cleaning the seats, do not use organic
substances (paint thinner, benzine, alcohol,
gasoline, etc.). They may damage the heater and seat
surface.
 To prevent the battery from being discharged, turn
the switches off when the engine is not running.

Finish
INTERIOR EQUIPMENT
66When all the doors are unlocked simultaneously using either
the key or the wireless remote control, all of the lights except
the center console spot lights will come on and remain on for
about 15 seconds before fading out.
To prevent the battery being discharged, all of the lights will
automatically turn off when the ignition key removed and the
door is left opened for about 30 minutes.
Ignition switch light, personal lights and center interior
light
The ignition switch light, personal lights and center interior light
also come on and remain on for about 15 seconds before
fading out when the ignition switch is turned to the “LOCK”
position.
Foot lights and inside door handle lights
The foot lights and inside door handle lights also come on when
the ignition switch is in the “ON” position with the selector lever
in the “P” position. When the selector lever is moved out of the
“P” position, the foot lights and inside door handle lights will be
dimmed.*
NOTE:
* The foot lights and inside door handle lights can be set to
turn off when the selector lever is moved out of the “P”
position.
Ask your Lexus dealer for details.
Center console spot lights
The center console spot lights come on when the ignition
switch is in the “ACC” or “ON” position.
CIGARETTE LIGHTER AND ASHTRAY
Front
To use the cigarette lighter and ashtray, first push against
the cigarette lighter and ashtray covers. Then when the
cigarette lighter cover opens, press in the cigarette lighter.
After it finishes heating up, it automatically pops out ready
for use.
Do not hold the cigarette lighter pressed in.
If the engine is not running, the ignition key must be in the
“ACC” position to use the lighter.
When finished with your cigarette, thoroughly extinguish it in
the ashtray to prevent other cigarette butts from catching fire.
After using the ashtray, push it back in completely.
To remove the ashtray, press down on the lock spring plate and
pull out.

AIR CONDITIONING
184If quick heating or cooling is desired
Push the “TEMP” or “PASSENGER TEMP” button on either
side
and hold it until “MAX. HOT” or “MAX. COLD” appears on
the display.
If manual fan speed control is desired
 1 Fan speed at low 2 Fan speed at high
The fan speed can be set to your desired speed by pushing the
appropriate side of fan speed control button. The higher the fan
speed is, the more air is delivered. Pushing the “OFF” button
turns off the fan.
To remove exterior windshield frost, use the high speed setting. If manual switching of air intake is desired
Each time you push the air intake control button, the mode
changes in order from the RECIRCULATED AIR mode to
OUTSIDE AIR mode, then back to the RECIRCULATED AIR
mode. Each indicator light shows which mode is now
selected.
1RECIRCULATED AIR mode If quick circulation of
cooled air is desired, select this mode.
2OUTSIDE AIR mode The system will take fresh outside
air into the vehicle.
To prevent fogging up of the windshield, the air intake mode
may change automatically to the OUTSIDE AIR mode
depending on the condition of the air conditioning system.
For example, when the ambient temperature is low, the air
intake mode may change automatically to the OUTSIDE AIR
mode. This is not a malfunction.

AIR CONDITIONING
185
If quick circulation of cooled air is desired, push the air intake
control
button for RECIRCULATED AIR. The indicator light will
come on.
For normal use, it is best to keep the air intake control button
set to the OUTSIDE AIR mode. If recirculated air is used during
heating, the windows will fog up more easily.
If manual onoff of the air conditioning is desired
Push the “A/C” button to turn the air conditioning on and push
it again to turn the air conditioning off.
The air conditioning does not work if the outside temperature
is lowered down to around 0 C (32F).
If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off once it is no longer required. This will improve
fuel economy. The air conditioning can be used for year −round
automatic temperature control including cooling and
dehumidifying operation.
If the air conditioning compressor does not operate, the
indicator of the “A/C” button will blink. If the indicator of the
“A/C” button blinks even when the “A/C” button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
(b) Windshield defogging and defrosting
To remove interior fog on the windshield
Push the windshield air flow button.
To remove frost or exterior fog on the windshield
1. Push the “TEMP” button to set the maximum temperature.
2. Push the windshield air flow button.
3. Push the fan speed control button on the right side to obtain
a maximum air flow.
4. Leave the “A/C” button off.
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.

AIR CONDITIONING
186This button allows the air intake to select the OUTSIDE AIR
mode automatically. This is to clean up the front view more
quickly. If you want to return the setting to the
RECIRCULATED
AIR mode, push the air intake control button
once again.
Push the “A/C” button for dehumidified heating or cooling. This
setting clears the front view more quickly.
CAUTION
Do not use the windshield air flow button during cooled
air operation in extremely humid weather. The
difference between the temperature of the outside air
and that of the windshield could cause the outer surface
of the windshield to fog up blocking your vision.
(c) Operating tips
 To help cool down the interior after parking in the hot sun,
drive for the first few minutes with the windows open. After
the excess heat has blown away, close the windows.
 Make sure the air inlet grilles in front of the windshield are
not blocked by leaves or other obstructions.
 If air flow control is not satisfactory, check the side vents and
rear vents. (See “(d) Center vents and side vents”.)
 On humid days, do not blow cold air on the windshield. The
windshield could fog up because of the difference in air
temperature on the inside and outside of the windshield.
 Keep the area under the front seats clear to allow air to
circulate throughout the vehicle.
 On cold days, set the fan speed to high for a minute to help
clear the intake ducts of snow or moisture. This can reduce
the amount of fogging on the windows.
 When driving on dusty roads, close all windows. If dust
thrown up by the vehicle is still drawn into the vehicle after
closing the windows, it is recommended that the air intake
be set to the OUTSIDE AIR mode and the fan speed to any
setting except “OFF”.

AIR CONDITIONING
187

If following another vehicle on a dusty road, or driving in
windy and dusty conditions, it is recommended that the air
intake be temporarily set to the RECIRCULATED AIR
mode, which will close off the outside passage and prevent
outside air and dust from entering the vehicle interior.
Heating
For best results, set controls to:
For automatic operation −
Push in the “AUTO” button.
Temperature To the desired temperature
Air intake OUTSIDE AIR
Air conditioning OFF
For manual operation −
Fan speed To the desired fan speed
Temperature Towards high temperature
Air intake OUTSIDE AIR
Air flow FLOOR
Air conditioning OFF
 For quick heating, select RECIRCULATED AIR for a few
minutes. To keep the windows from fogging, select
OUTSIDE AIR after the vehicle interior has been warmed.
 Push the “A/C” button on for dehumidified heating.
 Choose floor/windshield air flow to heat the vehicle interior
while defrosting or defogging the windshield. Air conditioning
For best results, set controls to:
For automatic operation
−
Push in the “AUTO” button.
Temperature To the desired temperature
Air intake OUTSIDE AIR
Air conditioning ON
For manual operation −
Fan speed To the desired fan speed
Temperature Towards low temperature
Air intake OUTSIDE AIR
Air flow PANEL
Air conditioning ON
 For quick cooling, select RECIRCULATED AIR for a few
minutes.
Ventilation
For best results, set controls to:
For automatic operation −
Push in the “AUTO” button.
Temperature Towards low temperature
Air intake OUTSIDE AIR
Air conditioning OFF

AIR CONDITIONING
188For manual operation
−
Fan speed To the desired fan speed
Temperature Towards low temperature
Air intake OUTSIDE AIR
Air flow PANEL
Air conditioning OFF
Defogging and defrosting
The inside of the windshield
For best results, set controls to:
For automatic operation −
Temperature Towards high temperature to heat;
low temperature to cool
Air intake OUTSIDE AIR
Air flow WINDSHIELD
For manual operation −
Fan speed To the desired fan speed
Temperature Towards high temperature to heat;
low temperature to cool
Air intake OUTSIDE AIR
Air flow WINDSHIELD
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used. This
button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push the “A/C” button for dehumidified heating or cooling. This
setting clears the front view more quickly.
 On humid days, do not blow cold air on the windshield − the
difference between the outside and inside temperatures
could make the fogging worse.
The outside of the windshield
For best results, set controls to:
For automatic operation −
Temperature Towards high temperature
Air intake OUTSIDE AIR
Air flow WINDSHIELD
For manual operation −
Fan speed To the desired fan speed
Temperature Towards high temperature
Air intake OUTSIDE AIR
Air flow WINDSHIELD

AIR CONDITIONING
189
When
the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.
This button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push the “A/C” button for dehumidified heating or cooling. This
setting clears the front view more quickly.
 To heat the vehicle interior while defrosting the windshield,
choose floor/windshield air flow.
(d) Center vents and side vents
 Center vents
 Side vents
If air flow control is not satisfactory, check the center
vents and side vents. The center vents and side vents may
be opened or closed as shown.

STARTING AND DRIVING
298
To ensure that the threeway catalytic converter and
the entire emission control system operate properly,
your vehicle must receive the periodic inspections
required by the Lexus Maintenance Schedule. For
scheduled maintenance information, refer to the
“Owner’s Manual Supplement / Scheduled
Maintenance”.
ENGINE EXHAUST CAUTION
CAUTION
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and odorless
gas. It can cause unconsciousness or even death.
 Make sure the exhaust system has no holes or loose
connections. The system should be checked from
time to time. If you hit something, or notice a change
in the sound of the exhaust, have the system checked
immediately.
 Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in or
out. The exhaust gases cannot escape, making this
a particularly dangerous situation.
 Do not remain for a long time in a parked vehicle with
the engine running. If it is unavoidable, however, do
so only in an unconfined area and adjust the heating
or cooling system to force outside air into the vehicle.
 Keep the back door closed while driving. An open or
unsealed back door may cause exhaust gases to be
drawn into the vehicle.

STARTING AND DRIVING
307
(c) Using the “3”, “2” and “L” positions
The “3”, “2” and “L” positions are used for strong engine\
braking
as described previously.
With the selector lever in “3”, “2” or “L”, you can start the vehicle
in motion as with the lever in “D”.
With the selector lever in “3” or “2”, the vehicle will start in firs\
t
gear and automatically shift to second gear.
With the selector lever in “L”, the transmission is engaged in
first gear.
NOTICE
 Be careful not to overrev the engine. Watch the
tachometer to keep engine rpm from going into the
red zone. The approximate maximum allowable
speed for each position is given below for your
reference:
Transmission Transfer
“L” “H”
“3” 53 km/h (33 mph) 136 km/h (85 mph)
“2” 36 km/h (22 mph) 93 km/h (58 mph)
“L” 21 km/h (13 mph) 54 km/h (33 mph)
 Do not continue hill climbing or hard towing for a long
time in the “3”, “2” or “L” position. This may cause
severe automatic transmission damage from
overheating. To prevent such damage, “4” position
should be used in hill climbing or hard towing.
(d) Backing up
 1 Brake pedal 2 “R” (Reverse) position
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the
selector lever to the “R” position.
NOTICE
Never shift into reverse while the vehicle is moving.
When the shift lever is shifted into “R” position, the outside rear
view mirrors automatically down to help backing up. For
details, see page 116.