2006 TOYOTA HIGHLANDER HYBRID ignition

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REGENERATIVE BRAKE
When the brake is applied, the motor gen-
erator converts kinetic energy into electric
energy.
The regenerative brake works in the fol-
lowing operations.
1. When the accelerator pedal is released, the reduced speed equal to engine
braking in a gasoline −fueled vehicle is
obtained in accordance with the running
mode position of the selector lever.
2. When the brake pedal is depressed with the selector lever in “D” or “B”,
the regenerative brake works.
HYDRAULIC BRAKE
This brake system has 3 independent hy-
draulic circuits. If any circuit should fail,
the other will still work. However, the ped-
al will be harder to press, and your stop-
ping distance will increase. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have your
brakes fixed immediately.
BRAKE ACTUATOR
The brake actuator uses brake fluid pres-
surized by the pump to power −assist the
brakes. If the brake actuator fails during
driving, the brake system warning light
comes on and the buzzer sounds continu-
ously. In this case, the brakes may not
work properly. If they do not work well,
depress the brake pedal firmly. If the
brake system warning light comes on, im-
mediately stop your vehicle and contact
your Toyota dealer.
The red and yellow brake system warning
lights may stay on for about 60 seconds
after the ignition is turned on. It is normal
if the light turns off after a while.
Depressing the brake pedal repeatedly
may turn on the red warning light. It is
normal if the light turns off after a few
seconds.
You may hear a sound in the engine
compartment after the hybrid system is
started or the brake pedal is depressed
repeatedly. This is a pump pulsating
sound of the brake system, and it is not
a malfunction. In the following conditions, you may hear
a motor sound in the engine compartment.
The brake pedal is depressed when the
hybrid system is turned off.
The driver ’s door is opened.
For a few seconds after the hybrid sys-
tem is off and about 90 seconds have
passed.
The brake pedal stroke may be short
when you turn the ignition on with the
brake pedal depressed.
CAUTION
Do not pump the brake pedal if the
hybrid system is not operating.
Each push on the pedal uses up
your reserved brake fluid pressure.
Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push the
pedal hard, much harder than nor-
mal. And your braking distance will
increase.
Brake system

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You may hear a sound in the engine
compartment when the brake pedal is de-
pressed with the hybrid system off. How-
ever, this does not indicate any trouble.
When the hybrid system is started or
stopped, you may hear a sound coming
from the traction battery under the rear
seats. However, this does not indicate any
trouble.
When the hybrid system is started or
stopped, or while the vehicle is idling, you
may hear a sound coming from the trans-
mission. However, this does not indicate
any trouble.
When applying brakes, you may hear a
sound coming from the regenerative
brakes. However, this does not indicate
any trouble.
When the gasoline engine is started or
stopped with the hybrid system on, you
may feel a vibration. However, this does
not indicate any trouble.
If there is a problem somewhere in the
hybrid system, “CHECK HYBRID SYSTEM”
warning message will appear on the multi −
information display. Have your vehicle
checked by your Toyota dealer as soon as
possible. If the hybrid system will not start...
See “If your vehicle will not start” on page
340 in Section 4.
CAUTION
Never start the hybrid system from
outside the vehicle, or an accident
may occur. Be sure to sit in the driv-
er seat, then start the system.
NOTICE

If any service reminder indicator
light comes on or warning message
appears on the multiinformation
display (see page 144 and page 155
for details) or the auxiliary battery
is disconnected, the hybrid system
may not start. In that case, turn the
ignition on again. If the “READY”
light does not come on, contact
your Toyota dealer.
 When you start the hybrid system
at a lower outside temperature, it
may take longer before the blinking
“READY” light changes to constant
on.
Always slow down in gusty crosswinds.
This will allow you much better control.
Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp− edged objects and
other road hazards. Failure to do so
can lead to severe tire damage such
as a tire burst.
Drive slowly when passing over bumps
or travelling on a bumpy road. Other-
wise, the impact could cause severe
damage to the tires and/or wheels.
When parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in “P”. If necessary, block the
wheels.
Washing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake applied. If they still do not
work safely, pull to the side of the road
and call a Toyota dealer for assistance.
Tips for driving in various
conditions

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Before making these checks, make sure
you have sufficient fuel and that you have
followed the correct starting procedure giv-
en in “How to start the hybrid system” on
page 326 in Section 3. If your vehicle is
equipped with the engine immobilizer sys-
tem, also check whether the other keys
will start the hybrid system. If they work,
your key may be broken. Have the key
checked at your Toyota dealer. If none of
your keys work, there may be a malfunc-
tion in the immobilizer system. Call your
Toyota dealer. (See “Keys (with engine
immobilizer system)” on page 22 in Sec-
tion 1−2.)
If the instrument cluster dims or the
instrument cluster display turns off
with the ignition on... 1. Check that the auxiliary battery termi- nals are tight and clean.
2. If the auxiliary battery terminals are O.K., the auxiliary battery is dis-
charged. You may try jump starting.
See “(b) Jump starting” on page 340
for further instructions.
NOTICE
Hybrid vehicles cannot be push
started.
If the instrument cluster displays with
normal brightness levels with the igni-
tion on...
The hybrid system may be faulty. Contact
your Toyota dealer. If the auxiliary battery is discharged,
the hybrid system can be started by
jump starting. Depending on the vehicle
condition, however, the hybrid system
may not start.
To avoid serious injury and damage to
your vehicle which might result from an
explosion of the battery, acid burns,
electrical burns, or damaged electronic
components, follow instructions careful-
ly.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent me-
chanic or towing service.
CAUTION
Batteries contain sulfuric acid
which is poisonous and corrosive.
Wear protective safety glasses when
jump starting, and avoid spilling
acid on your skin, clothing, or ve-
hicle.
If your vehicle will not start—
(a) Simple checks
(b) Jump starting

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If your hybrid system stalls while driv-
ing...
1. Reduce your speed gradually, keeping a straight line. Move cautiously off the
road to a safe place.
2. Turn on your emergency flashers.
3. Turn the ignition key to “ACC” or “LOCK”, and try starting the hybrid
system again.
If the hybrid system will not start, see “If
your vehicle will not start”.
CAUTION
When the hybrid system is not oper-
ating, the power assist for the brakes
and steering will not work, so steer-
ing and braking will be much more
difficult than usual.
Any of the following may indicate that
the hybrid system has overheated:
The engine coolant temperature
gauge indicates overheating.
A “WATER TEMP” warning message
appears on the multiinformation
display.
A loss of power is experienced.
A loud knocking or pinging noise is
heard.
If the hybrid system overheats, follow
the procedures below: 1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the hybrid transmission in
“P” and apply the parking brake. Turn
off the air conditioning if it is being
used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the hybrid
system. Wait until the steam subsides
before opening the hood. If there is no
coolant boiling over or steam, leave the
ignition turned on and make sure the
electric cooling fan is operating. If it is
not, turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from theradiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the hybrid system is on, keep
hands and clothing away from the
moving fan.
4. If the coolant is leaking, stop the hy-
brid system immediately. Call a Toyota
dealer for assistance.
5. If there are no obvious leaks, check the coolant reservoir. If it is dry, add
coolant to the reservoir while the hy-
brid system is on. Fill it about half full.
For the coolant type, see “Coolant type
selection” on page 389 in Section 7 −2.
If your hybrid system stalls
while driving If your vehicle overheats

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CAUTION
If the emergency towing eyelet is
used to get out when your vehicle
becomes struck in mud, sand or oth-
er condition from which the vehicle
cannot be driven out under its own
power, make sure to observe the pre-
cautions mentioned below. Otherwise,
excessive stress will be put on the
eyelet and the towing cable or chain
may break, causing serious injury or
damage.
If the towing vehicle can hardly
move, do not forcibly continue the
towing. Contact your Toyota dealer
or a commercial tow truck service
for assistance.
Tow the vehicle as straight ahead
as possible.
Keep away from the vehicle during
towing.
The following methods are effective to get
out when your vehicle is struck in mud,
sand or other condition from which the
vehicle cannot be driven out under its own
power. Use extreme caution when towing
vehicles. In addition, keep away from the
vehicles and towing cable or chain when
towing.
Remove the soil and sand in the front
and the back of the tires.
Place a stone or wood under the tires.
If you cannot shift the selector lever
out of the “P” position to other posi-
tions even though the brake pedal is
depressed, use the shift lock override
button as follows:
1. Turn the ignition key to the “LOCK” position. Make sure the parking
brake is applied.
2. Pry up the cover with a flathead screwdriver or equivalent.
3. Start the hybrid system. For your safety, keep the brake pedal de-
pressed.
—Tips for towing a stuck
vehicle If you cannot shift
transmission selector lever

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CAUTION
Never touch, remove or disassemble
high voltage parts and cables.
Touching, removing or disassem-
bling those parts and cables can
cause severe burns or electric
shock that may result in death or
serious injury. For the locations of
high voltage parts and cables, see
“—High voltage components” on
page 6 in Section 11.
When the hybrid system is on, keep
hands, clothing, and tools away
from the moving fan. (Removing
rings, watches, and ties is advis-
able.)
Right after driving, the engine
compartment—the engine, radiator,
exhaust manifold and spark plug
boots, etc.—will be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the radiator is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
When the hybrid system is operat-
ing with the “READY” light on, the
engine may suddenly start in some
cases. When you inspect the engine
compartment, be sure to turn off
the hybrid system.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Be sure that the ignition is off if
you work near the electric cooling
fans or radiator grille. With the
ignition on, the electric cooling fans
will automatically start to run if the
engine coolant temperature is high
and/or the air conditioning is on.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Brake fluid can harm your hands or
eyes and damage painted surfaces.
If fluid gets on your hands or in
your eyes, flush the affected area
with clean water immediately. If you
still feel uncomfortable with your
hands or eyes, go to the doctor.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Be extremely cautious when work-
ing on the auxiliary battery. It con-
tains poisonous and corrosive
sulfuric acid.

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NOTICE
Remember that the auxiliary battery
and ignition cable carry high cur-
rents or voltages. Be careful of ac-
cidentally causing a short circuit.
 Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. “Toyota Super Long Life
Coolant” is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).
 If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.
 When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
Front
Rear (front wheel drive models)
Positioning the jack

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GoodBlown
Ty p e A
Good Blown
Ty p e B
Good Blown
Ty p e C
If the headlights or other electrical
components do not work, check the
fuses. If any of the fuses are blown,
they must be replaced.
See “Fuse locations” on page 378 in Sec-
tion 7 −1 for locations of the fuses.
Turn the ignition switch and inoperative
component off. Pull the suspected fuse
straight out and check it.
Determine which fuse may be causing the
problem. The lid of the fuse box shows
the name of the circuit for each fuse. See
page 415 in Section 8 for the functions
controlled by each circuit.
Checking and replacing fuses