wheel Lexus GX470 2005 Scheduled Maintenance Guide / LEXUS 2005 GX470 (OM60B11U) Owner's Guide

STEERING WHEEL AND MIRRORS
238Calibrating the compass (deviation calibration)
The direction display on the compass deviates from the true
direction determined by the earth's magnetic field. The angle
of deviation varies according to the geographic position of the
vehicle.
To adjust this deviation, stop the vehicle, then push and hold
the ªCOMPº switch until the zone number appears on the
display. Then push the ªCOMPº switch, referring to the
following map to select the number of the zone where the
vehicle is.
16Z001
Samoa: 5 Guam: 8 Saipan: 8


Zone numbers

STEERING WHEEL AND MIRRORS
239
Leaving the system after the calibration for several seconds,
the direction will appear on the display. It shows the zone
number is set.
CAUTION
Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.
Calibrating the compass (circling calibration)
To rectify the compass, stop the vehicle and push and hold the
ªCOMPº switch until ªCº appears on the display.
There is also a case that ªCº appears on the display in case of
the drastic change of the magnetic field.
Drive the vehicle slowly (at 8 km/h [5
mph] or lower) in a circle
until the direction is displayed. If there is not enough space to
drive in a circle, drive around the block until the direction is
displayed.
After driving in 1 to 3 circles in the above method, calibration
is complete with the direction shown on the display.

STEERING WHEEL AND MIRRORS
240Perform
circling calibration just after you have purchased
your Lexus. And then always perform circling calibration
after the battery has been removed, replaced or
disconnected.
 Do not perform circling calibration of the compass in a place
where the earth's magnetic field is subject to interference by
artificial magnetic fields (underground parking, under a steel
tower, between buildings, roof parking, near a crossing,
near a large vehicle, etc.).
 During calibration, do not operate electric systems (moon
roof, power windows, etc.) as they may interfere with the
calibration.
CAUTION
When doing the circling calibration, be sure to secure
a wide space, and watch out for people and vehicles
in the neighborhood. Do not violate any local traffic
rules while performing circling calibration.
 Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.
VANITY MIRRORS
To use the vanity mirrors, swing the sun visor down and
slide the cover.
The vanity light comes on when you slide the cover.

STEERING WHEEL AND MIRRORS
241

AUDIO
285
The display can show up to 12 letters at once. If the CD title
or music title is longer than 12 letters, hold down the button for
longer
than 1 second. The letters after the 12th one are shown.
However, 24 letters at maximum can be shown on the display.
When you push this button for longer than 1 second or play no
operation for about 6 seconds with the letters after the 13th one
on the display, the display returns and shows the first 12 letters.
Even if the CD title or music title is longer than 24 letters, the
display can show up to 24 letters.
(i) If the player malfunctions
If the player or another unit equipped with the player
malfunctions, your audio system will display one of the four
following error messages.
If ªWAITº appears on the display: It indicates that the inside
of the player unit may be too hot due to the very high ambient
temperature. Remove the CD from the player and allow the
player to cool down.
If ªERROR 1º appears on the display: It indicates that the CD
is dirty, damaged, or it was inserted up±side down. Clean the
CD or insert it correctly.
If ªERROR 3º or ªERROR 4º appears on the display: It
indicates there is a trouble inside the system. Eject the CD.
If the malfunction is not rectified: Take your vehicle to your
Lexus dealer.
Audio remote controls (steering switches)
The switches are installed on the left side of the steering wheel.
ªMODEº switch: Use this switch to turn on or off the audio
system, or change the audio mode.
 To turn on the system, push the switch briefly. To turn off the
system, push and hold the switch until you hear a beep.
 To change the audio mode, turn on the system and push the
switch briefly. If a tape or CD is not inserted, the ªTAPEº or
ªCDº mode is skipped.

SECTION 3 ± 1
392
STARTING AND DRIVING
Starting and driving
Three±way catalytic converters393
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Engine exhaust caution 396
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Before starting the engine 398
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Ignition switch 398
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Parking brake 400
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How to start the engine 401
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Automatic transmission 403
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Four±wheel drive system 411
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Rear view monitor system 415
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Cruise control 419
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Rear height control air suspension 422
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Electronic modulated suspension 429
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Active traction control system 430
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Vehicle stability control system 433
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Downhill assist control system 436
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Hill±start assist control 439
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Brake system 442
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Tire pressure warning system 446
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Brake pad wear limit indicators 456
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Limited±slip differential 457
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STARTING AND DRIVING
398
BEFORE STARTING THE ENGINE
1. Check the area around the vehicle before entering it.
2. Adjust seat position, seatback angle, head restraint height
and steering wheel angle.
3. Adjust the inside and outside rear view mirrors.
4. Lock all doors.
5. Fasten seat belts.
Remember to check that the service reminder indicators
function when turning the key to ªONº, and check the fuel
gauge to see that you have sufficient fuel.
IGNITION SWITCH
ªSTARTº Ð Starter motor on. The key will return to the
ªONº position when released.
For starting tips, see page 401.
ªONº Ð Engine on and all accessories on.
This is the normal driving position.
NOTICE
Do not leave the key in the ªONº position if the engineis not running. The battery will discharge and theelectronic ignition system could be damaged.

STARTING AND DRIVING
399
ªACCº Ð Accessories such as the radio operate, but the
engine is off.
If you leave the key in the ªACCº or ªLOCKº position and open
the driver's door, a buzzer will remind you to remove the key.
ªLOCKº Ð Engine is off and the steering wheel is locked.
The ignition key can be removed only at this position.
To turn the key from ªACCº to the ªLOCKº position, you must
put the transmission selector lever in the ªPº position.
Once you remove the key, the engine immobilizer system is
automatically set. See ªEngine immobilizer systemº on page
14.
When starting the engine, the key may seem stuck at the
ªLOCKº position. To free it, first be sure the key is pushed all
the way in, and then rock the steering wheel slightly while
turning the key gently.
Approximately
five hours after the engine is turned off, you may
hear sound coming from underneath the luggage compartment
for several minutes. This is normal operation and does not
indicate a malfunction. (See ªLeak detection pumpº on page
vi.)
If, in an emergency, you must turn the engine off while the
vehicle is moving, turn the key only to ªACCº.

STARTING AND DRIVING
411
(g) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see ªIf you cannot shift automatic transmission
selector leverº on page 524.
(h) Driving in second start mode
In the second start mode, the transmission system shifts up
from second gear. Use this mode when starting your vehicle
in sand, mud, ice or snow.
To set the second start mode, push the ª2nd STRTº switch. In
the second start mode, the ª2nd STRTº indicator light comes
on. To cancel the second start mode, push the ª2nd STRTº
switch once again.
FOUR±WHEEL DRIVE SYSTEM
(a) Four±wheel drive control
Use the four±wheel drive control lever and center
differential lock switch to select the following transfer and
center differential modes.
The ªHº and ªLº position of the four±wheel drive control leve\
r
provides either lock or unlock mode of the center differential
depending on the center differential lock switch position.
Use the center differential lock system if your wheels get stuck
in a ditch, or when you are driving on a slippery or bumpy
surface. When the center differential is locked, the vehicle
stability control system is automatically turned off and the
center dif ferential lock and ªVSC OFFº indicator lights come on
because the function that controls engine performance
interferes with the process of freeing your wheels.

STARTING AND DRIVING
412
NOTICE
As soon as the center differential lock switch is turnedon, the ªVSC OFFº indicator light comes on. After thewheels are out of the ditch or off the slippery or bumpysurface, turn the center differential lock switch off.Make sure the cen ter differential lock indicator light and
vehicle stability control system off indicator light turn off.
ªHº (high speed position, center differential unlocked):
Lever at ªHº, center differential lock switch left out
Use this for normal driving on all types of roads, from dry
hard±surfaced roads to wet, icy or snow±covered roads. This
position gives greater economy, quietest ride, least wear and
better vehicle control.
ªHº (high speed position, center differential locked): Lever
at ªHº, center differential lock switch pushed in
Use this for greater traction when you experience a loss of
power, such as wheel slipping, in the center differential unlock
mode.
ªNº (neutral position): Lever at ªNº
No power is delivered to the wheels. The vehicle must be
stopped. ªLº (low speed position, center differential unlocked):
Lever at ªLº, center differential lock switch left out
Use this for maximum power and traction. Use this for climbing
or descending steep hills, off±road driving, and hard pulling in
sand or mud.
In this mode, the braking feeling that occurs when the wheels
are negotiating a sharp corner is further reduced than in the ªLº
(low position, center differential locked) mode.
ªLº (low speed position, center differential locked):
Lever
at ªLº, center differential lock switch pushed in
Use this for maximum power and traction. Use this for hard
pulling in sit uations the vehicle cannot negotiate even in the ªLº
(low speed position, center differential unlocked) mode. Also,
using this mode when driving down steep off±road inclines will
help contribute to increased vehicle stability.