check engine light LEXUS LX470 2006 Owners Manual

KEYS AND DOORS
27
Activating the system
The alarm sounds for 60 seconds if any of the following are
operated:
Unlocking any door without using an ignition key or wireless
remote control.
 Opening the hood and any doors forcibly.
 Reconnecting the battery.
If any door is unlocked and the ignition key is not in the ignition
switch during the alarm sounding, its door is automatically
locked.
To stop the alarm: Use either of the following methods.
 Unlock the door using an ignition key or wireless remote
control.
 Start the engine, and the alarm stops after 2 seconds.
Testing the system
1. Open all the windows.
2. Set the system as described above.
The front doors should be locked with the ignition key or
wireless remote control. Be sure to wait until the indicator light
starts flashing.
3. Unlock one of the doors from the inside.
The system should activate the alarm.
4. Unlock any of the doors with a key or the wireless
remote control to cancel the system.
5. Repeat this operation for the other doors and hood.
When testing the hood, also check that the system is activated
when the battery terminal is disconnected and then
reconnected.
If the system does not work properly, have it checked by your
Lexus dealer.
NOTICE
Disconnecting the battery may result in the erasure of
information you have set in the computer memory. After
reconnecting the battery, check that the memorized
data has been retained. If it has been erased, input it into
the computer once more.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
50
NOTICE
Do not drive the vehicle with the engine oil pressure
below the normal range until the cause is fixed it may
ruin the engine.
VOLTMETER
13X503a
 1 Normal range 2Charging system warning light
The voltmeter tells whether the battery is charged or
discharged. Check it while the engine is running the
needle should always indicate as shown above.
If the needle reads below or above the normal range while the
engine is running, it indicates the charging system needs
immediate repair.
However, it is normal for the needle to drop below the normal
range during engine starting.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
52
SERVICE REMINDER INDICATORSAND WARNING BUZZERS
IF THIS INDICATOR OR
BUZZER COMES ON ...DO THIS.
(a)
or
(Indicator and buzzer)If parking brake is off,
stop immediately and
contact Lexus dealer.
(b)
(Indicator and buzzer)
Fasten driver’s seat
belt.
(c)Fasten front
passenger’s seat belt.
(d)Take vehicle to Lexus
dealer immediately.
(e)214Replace engine oil.
IF THIS INDICATOR OR BUZZER COMES ON ...DO THIS.
(f)orTake vehicle to Lexus
dealer.
(g)or
Take vehicle to Lexus
dealer.
If the brake system
warning light is also
on, stop immediately
and contact Lexus
dealer.
(h)Close all doors.
(i)WG6
Adjust tire inflation
pressure.
If light remains on,
contact Lexus dealer.
(j)Shift four− wheel drive
control out of “N”.
(k)Stop and check.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
54
(a) Brake System Warning Light and Buzzer
This light comes on in the following cases when the ignition key
is in the “ON” position.
 When the parking brake is applied ...
This light comes on for a few seconds when the ignition key is
in the “ON” position even after the parking brake is released.
 When the brake fluid level is low ...
CAUTION
It is dangerous to continue driving normally when the
brake fluid level is low.
When the hydraulic brake booster fails ...
If the hydraulic booster causes a problem resulting in poor
braking performance, the warning light comes on and buzzer
sounds continuously.
Have your vehicle checked at your Lexus dealer in the
following cases:
 The light does not come on even if the parking brake is
applied when the ignition key is in the “ON” position.
 The light does not come on even if the ignition key is turned
on with the parking brake released.
A warning light turning on briefly during operation does not
indicate a problem.
CAUTION
If any of the following conditions occurs, immediately
stop your vehicle at a safe place and contact your Lexus
dealer.
 The light does not turn off even after the parking
brake is released while the engine is running.
 The warning buzzer comes on together with the
warning light.
In either case, this can indicate that the brakes may not
work properly and your stopping distance will become
longer. Depress the brake pedal firmly and bring the
vehicle to an immediate stop.
 The brake system warning light remains on together
with the “ABS” warning light.
In this case, not only the antilock brake system will fail,
but also the vehicle will become extremely unstable
during braking.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
57
If the system fails to reset, the light will remain flashing. In this
case, return to step 1 and try again.
(f) Malfunction Indicator Lamp
This
lamp comes on when the ignition key is turned to the
“ON” position and goes off after the engine starts. This
means that the warning light system is operating properly.
If the lamp remains on, or the lamp comes on while
driving, first check the following:
 Empty fuel tank
If the fuel tank is empty, refuel immediately.
 Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your
Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
 There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
If engine speed does not increase when the accelerator pedal
is depressed, there may be a problem somewhere in the
electronic throttle control system. At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your Lexus checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to “ACC” or “LOCK” position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
Emissions inspection and maintenance (I/M) programs
Your vehicle may not pass a state emission inspection if the
malfunction indicator lamp remains on. Contact your Lexus
dealer to check your vehicle’s emission control system and
OBD (On
−Board Diagnostics) system before taking your
vehicle for the inspection.
For details, see “Emissions inspection and maintenance (I/M)
programs” on page 391.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
59
(i) Tire Pressure Warning Light
This light comes on when the ignition key is turned to the “ON”
position. If the tire pressure warning system works properly
and tire inflation pressure is appropriate, the light goes off after
a few seconds.
This light comes on or flashes in the following cases when the
ignition key is turned to the “ON” position.
 When the low tire inflation pressure is detected while
driving...
If any tire has low inflation pressure, the light comes on.
The light goes off after the tire inflation pressure is adjusted
to a specified level.
 When initializing the system...
If initialization is completed, the light blinks three times.
 When the system malfunctions...
If the system malfunctions, the light blinks.
Although it is no problem to continue driving, have your
vehicle checked by your Lexus dealer as soon as possible.
(j) Unengaged “Park” Warning Light
This light warns that the transmission “Park” mechanism is not
engaged. If the four −wheel drive control is in the “N” position
while the selector lever is in the “P” position, the transmission
will disengage and the wheels will not lock.
CAUTION
To restore the park function, shift the fourwheel drive
control out of “N”.
(k) Automatic Transmission Fluid Temperature Warning Light
This light warns that the automatic transmission fluid
temperature is too high.
If this light comes on while you are driving, slow down and pull
off the road. Stop the vehicle at a safe place and put the
selector lever in “P” and leave the engine idling until the light
goes off. If the light goes off, you can start the vehicle again.
If the light does not go of f, call a Lexus dealer or qualified repair
shop for assistance.
NOTICE
Continued driving with the warning light on may
damage the automatic transmission.

222
GAUGES, METERS AND SERVICE REMINDER INDICATORS
63
The following service reminder indicators go off after a few
seconds.

w73

w72a

218
214 wtracorw227
or

The following service reminder indicat
or goes off after about 6
seconds.
The anti −lock brake system warning light, vehicle stability
control system off indicator light and vehicle stability control
system and active traction control system warning light may
stay on for about 60 seconds after the ignition key is turned to
the “ON” position. It is normal if they go out after a while.
If any service reminder indicator or warning buzzer does not
function as described above, have it checked by your Lexus
dealer as soon as possible.
TRIP INFORMATION DISPLAY (Vehicles without navigation system)
13x541z
The following information is shown with the ignition
switch turned on. Each time you push the “MODE” button,
the displayed information is changed.
 Average vehicle speed
 Driving distance after engine starting
 Available driving range
 Average fuel consumption after being refueled
 Current fuel consumption
The displayed trip information values indicate the general
driving condition and may not always reflect precise and actual
conditions.

STARTING AND DRIVING
287
(j) Active height control failure warning
If there is a problem somewhere in the active height control
suspension, the normal mode is automatically selected. If this
occurs, the height control “OFF” indicator light blinks and the
vehicle height control cannot be activated until the malfunction
is corrected.
Stop the engine and start it again. If the height control “OFF”
indicator light goes out, the active height control suspension
returns to normal. If the height control “OFF” indicator blinks
again, bring your vehicle to your Lexus dealer as soon as
possible and have it checked.
ADAPTIVE VARIABLE SUSPENSION (AVS)
This adaptive variable suspension adjusts the damping
effect on the shock absorbers with the damping mode
select switch. Select one of the 4 modes which is suited
to the driving conditions with the damping mode select
switch to provide good riding comfort and stability.
31X053c
 1For driving on a bumpy road
2For ordinary driving such as in the city traffic
3For moderate high speed driving
4For sporty type driving such as on winding
mountain roads and high speed driving
We recommend you to select the mode
2 for ordinary
driving. The damping effect will be changed automatically to
provide good riding comfort.

STARTING AND DRIVING
289
You may hear a sound in the engine compartment for a few
seconds when the engine is started or just after the vehicle
begins to move. This means that the active traction control
system is in the self
−check mode, and does not indicate
malfunction. When the active traction control system is
operating, you may feel vibration or hear noise of your vehicle,
caused by operation of the brakes. This indicates the system
is functioning properly.
When getting the vehicle out of mud or newly fallen snow, etc.,
the active traction control system will help operate to prevent
the wheels from spinning.
31X503
 Active traction control system failure warning
This light warns when there is a problem somewhere in the
active traction control system or vehicle stability control
system.
If the “VSC/TRAC” warning light comes on, have your vehicle
checked by your Lexus dealer as soon as possible. The brake actuator temperature increases during the active
traction control system or vehicle stability control system
operating. If the brake actuator temperature becomes too high
while the active traction cont
rol system or vehicle stability
control system is operating, a buzzer will start to sound
intermittently to indicate that the active traction control system
can no longer operate. In this case, immediately stop your
vehicle at a safe place. If the system continues to operate, the
buzzer sound changes from intermittent to continuous. (The
continuous buzzer sound will stop after about 3 seconds.) At
the time the “VSC/TRAC” warning light will come on and the
active traction control system temporarily stops operating in
order to protect the brake actuator. (Although the active
traction control system does not operate, there is no problem
to continue your driving.) The system will be automatically
restored after a short time and “VSC/TRAC” warning light goes
off if the accelerator pedal is released.
When the “ABS” warning light comes on, the active traction
control system is not operating.
The “VSC/TRAC” warning light will come on when the ignition
key is turned to “ON”, and will go off after a few seconds.
The “VSC/TRAC” warning light may stay on for 60 seconds
after the ignition key is turned to the “ON” position. It is normal
if it goes off after a few seconds.
Depressing the brake pedal repeatedly may turn on the
“VSC/TRAC” warning light. It is normal if it goes off after a few
seconds.
When the “VSC/TRAC” warning light comes on, the active
traction control system is not operating, but there is no problem
if you continue to drive.

STARTING AND DRIVING
291
The vehicle stability control system is activated when the
vehicle speed is about more than 15 km/h (9 mph).
You may hear a sound in the engine compartment for a few
seconds when the engine is started or just after the vehicle
begins to move. This means that the vehicle stability control
is in the self−
check mode and does not indicate a malfunction.
31X529
Pushing the center differential lock button automatically turns
the vehicle stability control system off. At this time, the “VSC
OFF” indicator comes on with the center differential lock
indicator light. (For details, see “Four −wheel drive system” on
page 266.)
31x505
 Vehicle stability control system failure warning
These lights warn when there is a problem somewhere in the
vehicle stability control system or active traction control
system.
If the “VSC/TRAC” warning light and “VSC OFF” indicator light
come on, have your vehicle checked by your Lexus dealer as
soon as possible. However, there is no problem even if the
“VSC/TRAC” warning light comes on when the brake actuator
temperature becomes high. (For details, see “Active traction
control system” on page 288.)
When the “ABS” warning light comes on, the vehicle stability
control system is not operating.
The lights will come on when the ignition key is turned to “ON”,
and will go off after a few seconds.
The lights may stay on for 60 seconds after the ignition key is
turned to the “ON” position. It is normal if they go off after a few
seconds.