2014 TOYOTA HIGHLANDER HYBRID air conditioning

379
6Maintenance and care
HIGHLANDER_HV_U (OM48D74U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 380
Cleaning and protecting the vehicle interior ........... 383
6-2. Maintenance Maintenance requirements ................... 386
General maintenance........ 389
Emission inspection and maintenance (I/M)
programs......................... 393
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 394
Hood ................................. 396
Positioning a floor jack ...... 398
Engine compartment ......... 399
12-volt battery ................... 407
Tires .................................. 412
Tire inflation pressure ....... 421
Wheels .............................. 424
Air conditioning filter.......... 426
Electronic key battery........ 428
Checking and replacing fuses ............................... 430
Light bulbs......................... 434

3956-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48D74U)
6
Maintenance and care
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
■When working on the engine compartment
● Make sure that the “ACCESSORY” or “IGNITION ON” on the multi-infor-
mation display and the “READY” indicator are both off.
● Keep hands, clothing and tools away from the moving fans and engine
drive belt.
● Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■ When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, t he electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 404)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

4266-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48D74U)
Turn the power switch off.
Open the glove box. Slide off
the damper.
Push in each side of the glove
box to disconnect the upper
claws. Then pull out the glove
box and disconnect the lower
claws.
Pull down the cover.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
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4276-3. Do-it-yourself maintenance
HIGHLANDER_HV_U (OM48D74U)
6
Maintenance and care
Remove the filter cover.
Remove the air conditioning fil-
ter and replace it with a new
one.
The “UP” marks shown on the
filter should be pointing up.
■ Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Schedule maintenance guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
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NOTICE
■When using the ai r conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

5217-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER_HV_U (OM48D74U)
●The needle of the engine coolant temperature gauge ( P. 103)
enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehicle speed does not increase.)
● “Hybrid System Overh eat” is shown on the multi-information dis-
play.
● Steam comes out from under the hood.
■If the needle of the engine coolant temperature gauge enters
the red zone
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
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5227-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48D74U)
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from th e radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
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5508-1. Specifications
HIGHLANDER_HV_U (OM48D74U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of hybrid
transmission, power steering, power brakes,
power windows, power seats, radio and
heater, to the extent t hat these items are avail-
able as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1* that
follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1* below

589
HIGHLANDER_HV_U (OM48D74U)
Alphabetical index
Alphabetical index
A/CAir conditioning filter ............. 426
Front automatic air
conditioning system ............ 326
Rear automatic air
conditioning system ............ 333
ABS (Anti-lock Brake System)...... 291
Function ................................ 291
Warning light ......................... 458
Air conditioning filter .............. 426
Air conditioning system
Air conditioning filter ............. 426
Front automatic air conditioning system ............ 326
Rear automatic air conditioning system ............ 333 Airbags ....................................... 41
Airbag operating conditions .... 49
Airbag precautions for
your child .............................. 44
Airbag warning light .............. 458
Correct driving posture ........... 30
Curtain shield airbag operating conditions ............. 49
Curtain shield airbag precautions........................... 46
Front passenger occupant
classification syst em ............ 54
General airbag precautions .... 44
Locations of airbags ............... 41
Modification and disposal of airbags ............... 48
Side airbag operating
conditions ............................. 49
Side airbag precautions .......... 44
Side and curtain shield airbags operating
conditions ............................. 49
Side and curtain shield
airbags precautions .............. 44
SRS airbags ........................... 41
Alarm .......................................... 93 Alarm ...................................... 93
Warning buzzer ............ 457, 466
Anchor brackets ........................ 66
Antennas (smart key system) .................................. 148
A