’06 HIGHLANDER HB_U (L/O 0503)
372
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Exhaust system
If  you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” on
page 305 in Section 2.)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers  function properly.
Steering wheel
Check that it has the specified free play.
Be alert for changes in steering condition,
such as hard steering or strange noise. Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check  that the head re-
straints move up and down  smoothly and
that the locks hold securely in any latched
position. For folding
−down rear seatbacks,
check that the latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.
Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has  the proper  clearance.
Check the brake booster function.
Brakes
In a safe place, check that the brakes do
not pull to one side when applied. Parking brake
Check that the pedal has  the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Transmission “Park” mechanism
Check  the lock  release button of  the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check  that your
vehicle is held securely with the selector
lever in “P” position and all brakes re-
leased.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while.  If you smell fuel
fumes or notice any  leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all side doors and back door
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released. 
         
        
        ’06 HIGHLANDER HB_U (L/O 0503)
378
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Removing clip
Installing clip
Before checking the fuse or replacing
the left front light bulbs, etc. in the
engine compartment, remove the engine
compartment covers as shown in the
illustrations:
1. Push the core of the clips and remove the clips.
2. Remove the cover.
Be careful not to lose the removed plastic
clips.
After checking the items, install  the en-
gine compartment covers and insert  the
plastic clips in their original positions.
NOTICE
After installing the engine compart-
ment covers, make sure the covers
are securely in their original posi-
tions.
Fuse locations 
         
        
        ’06 HIGHLANDER HB_U (L/O 0503)
386
2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Low level Full level
Add oil O.K. Too full
With the hybrid system at operating
temperature and turned off, check the
oil level on the dipstick. 1. To get a correct reading, the vehicle should be on level ground. After turning
off the hybrid system, wait a few min-
utes for the oil to drain back  into the
bottom of the engine.
2. Pull the dipstick out, hold a rag under the end and wipe it  clean.
3. Reinsert the dipstick—push it in as far as it will go, or the reading will not be
correct.
4. Pull the dipstick out and look at the oil level while holding a rag under the
end.
CAUTION
Be careful not to touch the hot ex-
haust manifold.
NOTICE
Be careful not to drop engine oil on
the vehicle components.
 To avoid drops of the engine oil
falling when you pull out the engine
oil dipstick, make sure to hold a
rag under the dipstick.
If the oil level is below or only slightly
above the low level, add engine oil of
the same type as already in  the engine.
Remove the oil filler  cap and add engine
oil in small quantities at a time, checking
the dipstick. We recommend that you use
a funnel when adding oil.
The approximate quantity of oil needed to
raise the level between low and full on the
dipstick is indicated as follows:
1.5 L (1.6 qt., 1.3 lmp. qt.)
For the engine oil  capacity,  see “Service
specifications” on page 412 in Section 8. When the level reaches within the correct
range, install the filler cap hand−
tight.
NOTICE
Be careful not  to spill engine oil on
the vehicle components.
 Avoid overfilling, or the engine
could be damaged.
 Check the oil level on the dipstick
once again after adding the oil.
Checking the engine oil level