Page 315 of 604

3154-6. Driving tips
4
Driving
HIGHLANDER_HV_U (OM48D74U)■
Air conditioning
Use the air conditioning only when
necessary. Doing so can help
control excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode.
Doing so will help to reduce the burden on the air conditioner and
reduce fuel cons umption as well.
In winter: Because the gasoline eng ine will not automatically cut out
until the gasoline engine and the in terior of the vehicle are warm, it
will consume fuel. Also, fuel consumption can be improved by
avoiding overuse of the heater.
■Checking tire inflation pressure
Make sure to check the tire infl ation pressure frequently. Improper
tire inflation pressure can cause poor fuel consumption.
Also, as snow tires can cause large amounts of friction, their use on
dry roads can lead to poor fuel co nsumption. Use a tire that is
appropriate for the season.
■Luggage
Carrying heavy luggage can lead to poor fuel consumption. Avoid
carrying unnecessary luggage. Insta lling a large roof rack can also
cause poor fuel consumption.
■Warming up before driving
Since the gasoline engine starts up and cuts out automatically
when cold, warming up the engine is unnecessary. Moreover, fre-
quently driving short distances will cause the engine to repeatedly
warm up, which can lead to poor fuel consumption.
Page 331 of 604

3315-1. Using the air conditioning system and defogger
5
Interior features
HIGHLANDER_HV_U (OM48D74U)■
Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the wind-
shield effectively.
● If you turn off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Windshield fog detection function
When automatic mode is set, the humidity sensor (P. 332) detects fog on
the windshield and controls the air conditioning system to prevent fog.
■ Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effec-
tive in preventing outside air from entering the vehicle interior. During
cooling operation, setting the recirculated air mode will also cool the vehicle
interior effectively.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
■ When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
●In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.
● It is possible to switch to outside air mode at any time by pressing .
■ Air conditioning odors
●During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic
mode.
■ Air conditioning filter
P. 426
■ Customization
Settings (e.g. A/C auto switch operation) can be changed.
(Customizable features P. 556)
Page 559 of 604
5598-2. Customization
HIGHLANDER_HV_U (OM48D74U)
8
Vehicle specifications
*1: For details about each function: P. 109, 114
*2: The default setting varies according to country.
*3: U.S.A. only
*4: Some status screens cannot be registered (indicated on multi-information
display).
*5: 6 of the following items: current fuel consumption, average fuel economy (after reset), average fuel economy (after refuel), average fuel economy
(after start), average vehicle speed (after reset), average vehicle speed
(after start), distance (driving range), elapsed time (after reset), elapsed
time (after start), distance (after start), driving distance (after reset), blank.
*6: Speed limit display may not be available for some regions.
Page 594 of 604

594Alphabetical index
HIGHLANDER_HV_U (OM48D74U)
Front personal lights ............... 340Wattage ................................ 539
Front seats ............................... 156 Adjustment ............................ 156
Cleaning................................ 383
Correct driving posture ........... 30
Head restraints ..................... 169
Seat heaters ......................... 337
Seat position memory ........... 165
Seat ventilators ..................... 337
Front side marker lights.......... 244
Light switch ........................... 244
Replacing light bulbs............. 434
Wattage ................................ 539
Front turn signal lights ........... 242 Replacing light bulbs............. 434
Turn signal lever ................... 242
Wattage ................................ 539
Fuel ........................................... 259 Capacity ................................ 531
Fuel gauge ............................ 103
Information ............................ 540
Refueling............................... 259
Type .............................. 259, 531
Warning light ......................... 459
Fuel consumption Average fuel
economy ..................... 107, 113
Current fuel consumption ............... 107, 113
Fuel filler door.......................... 259 If the fuel filler door cannot be opened............... 262
Refueling............................... 259
Fuses ........................................ 430
Garage door opener ................ 361
Gauges ..................................... 103
Glass hatch .............................. 144
Glove box ................................. 343
Grocery bag hooks .................. 349 Hands-free system
(for cellular phone)
*
Head restraints ........................ 169
Headlights ................................ 244 Automatic High Beam
system .......... ...................... 248
Light switch ........................... 244
Replacing light bulbs ............ 434
Wattage ................................ 539
Heaters Front automatic air
conditioning system............ 326
Heated steering wheel .......... 337
Outside rear view mirrors ..... 328
Rear automatic air conditioning system............ 333
Seat heaters ......................... 337
High voltage components ........ 85
Hill-start assist control ........... 292
Hood ......................................... 396 Open ..................................... 396
Hooks Cargo hooks ......................... 349
Coat hooks ........................... 359
Grocery bag hooks ............... 349
Retaining hooks (floor mat) .... 28
Horn .......................................... 173
Hybrid battery
(traction battery) ..................... 85
Hybrid battery
(traction battery) air vent........ 86
G
H