engine TOYOTA HIGHLANDER 2006 XU20 / 1.G Service Manual

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In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.
The “TRAC OFF” indicator light will come
on when the “VSC” warning light comes
on even if the “TRAC OFF” switch is not
pushed. The traction control system automatical-
ly helps prevent the spinning of 4
wheels when the vehicle is started or
accelerated on slippery road surfaces.
When the ignition key is turned to “ON”,
the system automatically turns on.CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power against 4 wheels cannot be
maintained, even though the traction
control system is in operation. Do not
drive the vehicle under any speed or
maneuvering conditions which may
cause the vehicle to lose traction
control. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
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 trac-
tion control system is in the self
−check
mode, but does not indicate a malfunction.
Traction control system
(fourwheel drive models)

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The vehicle stability control system
helps provide comprehensive control of
the systems such as antilock brake
system, traction control, engine control,
etc. This system automatically controls
the brakes and engine to help prevent
the vehicle from skidding when corner-
ing on a slippery road surface or oper-
ating steering wheel abruptly.
This system activates 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 sys-
tem is in the self−check mode, but does
not indicate a malfunction.CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the system is operating, it cannot
completely eliminate the possibility
of an accident. Always keep safe
driving in mind, as reckless driving
increases the risk of an accident. If
the slip indicator light blinks, spe-
cial care should be taken while
driving.
Only use tires of specified size. The
size, manufacture, brand and tread
pattern for all 4 tires should be the
same. If you use the tires other
than specified, or different type or
size, the vehicle stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 387 in Section 72.)
If the vehicle is going to skid during driv-
ing, the slip indicator light blinks and an
alarm sounds intermittently. Special care
should be taken while driving.
The slip indicator light comes on for a few
seconds when the ignition key is turned
to “ON”. If the indicator light does not
come on when the ignition is turned on,
contact your Toyota dealer.
Vehicle stability control
system

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Ty p e A
Ty p e B
When parking, firmly apply the parking
brake to avoid inadvertent creeping.
To set: Fully depress the parking brake
pedal. For better holding power, first de-
press the brake pedal and hold it while
setting the parking brake.
To release: Depress the parking brake
pedal once again.
To remind you that the parking brake is
set, the parking brake reminder light in
the instrument panel remains on until you
release the parking brake.
The buzzer will remind you to release the
parking brake when the vehicle speed
rises above 5 km/h (3 mph) with the park-
ing brake is applied.
CAUTION
Before driving, be sure the parking
brake is fully released and the park-
ing brake reminder light is off.
The cruise control is designed to main-
tain a set cruising speed without requir-
ing the driver to operate the accelera-
tor. Cruising speed can be set to any
speed above 40 km/h (25 mph).
Within the limits of the engine’s capabili-
ties, cruising speed can be maintained up
or down grades. However, changes in ve-
hicle speed may occur on steeper grades.
CAUTION
To help maintain maximum control
of your vehicle, do not use the
cruise control when driving in
heavy or varying traffic, or on slip-
pery (rainy, icy or snowcovered) or
winding roads.
Avoid vehicle speed increases when
driving downhill. If the vehicle
speed is too fast in relation to the
cruise control set speed, cancel the
cruise control then downshift the
transmission to use engine braking
to slow down.
Parking brake Cruise control

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If you need acceleration—for example,
when passing—depress the accelerator
pedal enough for the vehicle to exceed
the set speed. When you release it, the
vehicle will return to the speed set prior
to the acceleration.
CANCELLING THE CRUISE CONTROL
The cruise control may be temporarily
cancelled by the driver or by the system
itself under certain circumstances. Tempo-
rary cancellation allows the set cruising
speed to remain in memory.
The cruise control can be temporarily can-
celled by doing the following:
Pulling the lever in the “CANCEL” di-
rection and releasing it
Depressing the brake pedal
Under certain circumstances, the cruise
control is temporarily cancelled:
When vehicle speed falls below 40
km/h (25 mph)
When vehicle stability control is acti-
vated
When vehicle speed drops 16 km/h (10
mph) below the set speed, the cruise con-
trol is cancelled and the set speed is
erased from memory. The “CRUISE” indicator light remains on
to indicate that the system is still in op-
eration.
To turn the cruise control off, press the
“ON
−OFF” button. Make sure the
“CRUISE” indicator light is off.
If the cruise control automatically cancels
out other than for the above cases, have
your vehicle checked by your Toyota deal-
er at the earliest opportunity.
RESUMING THE CRUISE CONTROL
If the cruise control is temporarily can-
celled, the cruising speed can be resumed
by pushing the lever up in the “+ RES”
direction.
Vehicle speed must be above 40 km/h (25
mph).
RESETTING TO A FASTER SPEED
Push the lever up in the “+ RES” direction
and hold it. Release the lever when the
desired speed is attained. While the lever
is held up, the vehicle will gradually gain
speed.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
lever down in the “− SET” direction. RESETTING TO A SLOWER SPEED
Push the lever down in the “
− SET” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held down, the vehicle speed will
gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
lever down in the “− SET” direction.
Even if you turn off the overdrive switch
with the cruise control on, engine braking
will not be applied because the cruise
control is not cancelled. To decrease the
vehicle speed, reset to a slower speed
with the cruise control lever or depress
the brake pedal. If you use the brake
pedal, cruise control is cancelled.

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NOTICE
Benzene or alkaline solutions may
damage the coated surface of the
screen .
 To prevent the battery from being
discharged, do not turn on the rear
seat entertainment system longer
than necessary when the engine is
not running.
The rear seat entertainment system can
be operated with the rear seat entertain-
ment system controller and buttons on the
DVD player unit. The system cannot be
operated by touching the switches on the
screen directly.
CAUTION
Do not disassemble or modify the
controller. It may cause an accident,
fire or electric shock.
NOTICE
Keep the controller away from direct
sunlight, high heat and high humidity.
These conditions could cause the
case to deform or the battery to ex-
plode or leak.
BEFORE USING THE CONTROLLER
(for new vehicle owners)
A battery is already set in the control-
ler with an insulating sheet, which pre-
vents the battery from being dis-
charged. Before using the controller,
remove the insulating sheet according
to the following procedure.
—Rear seat entertainment
system controller

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Level 8: All types of DVD video discs can
be played.
Multiangle feature: You can enjoy the
same scene at different angles.
Multilanguage feature: You can select
the language of the subtitles and audio.
Region codes: Region codes are provided
on DVD players and DVD discs. If the
DVD video disc does not have the same
region code as the DVD player, you can-
not play the disc on the DVD player. For
region codes, see page 234.
Audio: This DVD player can play liner
PCM, Dolby digital, dts and MPEG audio
format DVD. Other decoded type cannot
be played.
Title and chapter: Video and audio pro-
grams stored on DVD video discs are di-
vided in parts by title and chapter.
Title: The largest unit of the video and
audio programs stored on DVD video
discs. Usually, one piece of a movie, one
album, or one audio program is assigned
as a title.
Chapter: A unit smaller than a title. A title
comprises plural chapters. Manufactured under license from Dolby
Laboratories. “Dolby”, “Pro Logic”, and
the doubleD symbol are trademarks of
Dolby Laboratories. Confidential unpub-
lished works.

19921997 Dolby Laboratories. All
rights reserved.
This product incorporates copyright
protection technology that is protected
by method claims of certain U.S. pat-
ents and other intellectual property
rights owned by Macrovision Corpora-
tion and other rights owners. Use of
this copyright protection technology
must be authorized by Macrovision Cor-
poration, and is intended for home and
other limited viewing uses only unless
otherwise authorized by Macrovision
Corporation. Reverse engineering or
disassembly is prohibited.
“dts” is a trademark of Digital Theater
Systems, Inc. The rear entertainment system plays vid-
eos and sound when an audio
−video
equipment is connected to the A/V input
adapter. For details, refer to the manufac-
turer’s instructions.
—A/V input adapter

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NOTICE
To prevent the battery from being
discharged, do not use the power
outlet longer than necessary when
the engine is not running.
 Close the power outlet lid when the
power outlet is not in use. Inserting
anything other than an appropriate
plug that fits the outlet may cause
electrical failure or short circuit.
The power outlet is not designed for
the following electric appliances even if
their power consumption is under 115
VAC/100W. These appliances may not
operate properly.
Appliances with high initial peak watt-
age: cathode− ray tube type televisions,
compressor −driven refrigerators, electric
pumps, electric tools, etc.
Measuring devices which process pre-
cise data: medical equipment, measur-
ing instruments, etc.
Other appliances requiring an extremely
stable power supply: microcomputer −
controlled electric blankets, touch sen-
sor lamps, etc.
Certain electrical appliances may cause
radio noise.
You can enjoy the rear seat entertain-
ment system with commercial head-
phones.
To use the headphones, connect them to
the jack.
The key must be in the “ACC” or “ON”
position.
—Headphone j acks

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For details about air flow selector settings,
see “—Air flow selector settings” de-
scribed below.
Air intake selector
Press the button to select the air source.
1. Recirculate— Recirculates the air inside
the vehicle.
2. Fresh— Draws outside air into the sys-
tem.
If the engine coolant temperature becomes
extremely high, RECIRCULATE mode will
automatically be selected. This is not a
malfunction. When the engine coolant tem-
perature is lowered, the previous mode
will resume.
To prevent fogging up of the windshield,
the air intake mode may change automati-
cally to FRESH depending on the condi-
tion of the air conditioning system. “A/C” button
To turn on the air conditioning, press the
“A/C” button. The “A/C” button indicator
will come on. To turn the air conditioning
off, press the button again.
If the “A/C” button indicator flashes, there
is a problem in the air conditioning system
and the air conditioning automatically
shuts off. If this happens, take your ve-
hicle to a Toyota dealer for service.

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Air conditioning system on—
Air conditioning system off—
The multiinformation display indicates
the following information.
1. Outside temperature
2. Average vehicle speed
3. Average fuel consumption
4. Instantaneous fuel consumption
5. Driving time
6. Air conditioning system on—The air conditioned temperature is displayed.
Air conditioning system off—The air
conditioned temperature is not dis-
played.
Every time you push the “INFO” button,
the display toggles through this informa-
tion.
The displayed values in the multi −informa-
tion display indicate general driving condi-
tions. Accuracy varies with driving habits
and road conditions.
You can adjust the air conditioned temper-
ature while the multi −information is operat-
ing. 5 seconds has been passed after ad-
justing the temperature or pushing the
“INFO” button, the display will be back to
the multi −information display. 1. Outside temperature
(“OUTSIDE TEMP”)
The outside temperature display indi-
cates the outside air temperature.
The displayed temperature ranges from
− 22 F ( −30 C) up to 122 F (50 C).
If an abnormality exists in the connection
of the outside air temperature sensor,
“ −− F” (“ −−C”) will appear on the display.
If “ −−F” (“ −−C”) appears on the display,
contact your Toyota dealer.
There may be a case that “−− F” (“ −−C”)
appears momentarily when the ignition is
quickly turned to “ON”. It is normal if it
goes out soon.
2. Average vehicle speed (“AVG MPH” or “AVG km/h”)
Average vehicle speed is calculated and
displayed based on total driving dis-
tance and total driving time with the
engine running.
The displayed value is updated every 10
seconds.
To reset the calculation, push the “INFO”
button for more than 1 second.
Multiinformation display

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3. Average fuel consumption
(“AVG MPG” or “AVG L/100 km”)
Average fuel consumption is calculated
and displayed based on total driving
distance and total fuel consumption
with the engine running.
The displayed value is updated every 10
seconds.
4. Instantaneous fuel consumption (“MPG” or “L/100 km”)
The instantaneous fuel consumption is
calculated and displayed based on dis-
tance and fuel consumption for 1 sec-
onds with the engine running.
The displayed value is updated every 2
seconds.
Note that an accurate figure may not be
shown in the following cases.
The vehicle is stopped with the engine
running. (The display will indicate the
extremely high fuel consumption.)
The vehicle is driving down a long
slope applying the engine brake. (The
display will indicate the extremely low
fuel consumption.)
The calculation is reset when the ignition
switch is turned off. 5. Driving time (“E/T”)
The elapsed time after the engine starts
is displayed.
When the engine is started, driving time
is counted from 0:00. Up to 11:59 (11
hours, 59 minutes) can be displayed.
When the driving time exceeds 11:59, the
counter returns to 0:00.
The calculation is reset when the ignition
switch is turned off.
To reset the hour: Push the “H” button.
To reset the minutes: Push the “M” button.
The key must be in the “ACC” or “ON”
position.
If the electrical power source has been
disconnected from the clock, the time dis-
play will automatically be set to 1:00 (one
o’clock).
Clock