’06 HIGHLANDER HB_U (L/O 0503)
380
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
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 1 1.
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.
’06 HIGHLANDER HB_U (L/O 0503)
412
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
ENGINE
Valve clearance (engine cold), mm (in.):
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm(in.): 1.1 (0.043)
ENGINE LUBRICATION
Oil capacity (drain and ref ill), L (qt., Imp.
qt.): With filter 4.7 (5.0, 4.1)
Without filter 4.5 (4.8, 4.0)
“Toyota Genuine Motor Oil” is used in
your Toyota vehicle. Use Toyota approved
“Toyota Genuine Motor Oil” or equivalent
to satisfy the following grade and
viscosity.
Oil grade: API grade SL “Energy −Conserving” or
ILSAC multigrade engine oil Recommended oil viscosity:
SAE 5W −30
Outside temperature
Please contact your Toyota dealer for fur-
ther details. COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
Gasoline engine coolantWith rear heater 11.6 (12.3, 10.2)
Without rear heater
10.3 (10.9, 9.0)
Inverter coolant 3.4 (3.6, 3.0)
Coolant type: “Toyota Super Long Life Coolant” is
used in your Toyota vehicle at factory
fill. In order to avoid technical problems,
only use “Toyota Super Long Life
Coolant” or similar high quality ethylene
glycol based non −silicate, non −amine,
non− nitrite, and non− borate coolant with
long− life hybrid organic acid technology.
(Coolant with long −life hybrid organic
acid technology is a combination of low
phosphates and organic acids.)
Do not use plain water alone.
Please contact your Toyota dealer for
further details.
Service specifications
’06 HIGHLANDER HB_U (L/O 0503)
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Where to obtain the
Repair Manual
The repair manual for HIGHLANDER may be pur-
chased from any Toyota dealer or the Material Dis-
tribution Center. To purchase the repair manual,
please contact your Toyota dealer or call the Mate-
rial Distribution Center toll free at
1 800 622 2033.
Maintenance procedures for the engine,
chassis, body, electric al system, and more,
are clearly explained and illustrated.
Periodic maintenance and tune up
Periodic maintenance and tune up helps to prevent
small problems from growing into larger ones later on.
The repair manual outlines exactly what maintenance
is required and clearly explains how to do the work
yourself step by step.
Areas covered include such things as spark plug re-
placement, valve clearance adjustment and engine oil
and filter replacement.
