2021 TOYOTA HIGHLANDER HYBRID service

4957-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER HV_U
If the fuel filler door opener
switch cannot be operated,
remove the cover inside the
luggage compartment and
pull the lever to open the fuel
filler door.
 Using the lever to open the
fuel filler door may not allow
for an adequate reduction in
fuel tank pressure before refu-
eling. To prevent fuel from
If you lose your keys
New genuine mechanical
keys can be made by your
Toyota dealer using another
mechanical key and the key
number stamped on your
key number plate.
Keep the plate in a safe
place such as your wallet,
not in the vehicle.
NOTICE
■When an electronic key is lost
If the electronic key remains lost,
the risk of vehicle theft increases
significantly. Visit your Toyota
dealer immediately with all
remaining electronic keys that
were provided wit h your vehicle.
If the fuel filler door
cannot be opened
If the fuel filler door opener
switch cannot be operated,
contact your Toyota dealer
to service the vehicle. In
case where refueling is
urgently necessary, the fol-
lowing procedure can be
used to open the fuel filler
door.
Opening the fuel filler
door

5198-1. Specifications
8
Vehicle specifications
HIGHLANDER HV_Uadversely affected.
The malfunction indicator lamp on
the instrument cluster may come on.
If this happens, contact your Toyota
dealer for service.
■If your engine knocks
●Consult your Toyota dealer.
●You may occasionally notice light
knocking for a short time while
accelerating or dr
iving uphill. This
is normal and there is no need for
concern.
NOTICE
■Notice on fuel quality
●Do not use impro per fuels. If
improper fuels are used, the
engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause
damage to your vehicle’s
three-way catalytic converters
causing the emission control
system to malfunction.
●Do not use gasohol other than
the type previously stated.
Other gasohol may cause fuel
system damage or vehicle per-
formance problems.
●Using unleaded gasoline with
an octane number or rating
lower than the l evel previously
stated may cause persistent
heavy knocking.
At worst, this may lead to
engine damage an d will void the
vehicle warranty.
■When refueling with gasohol
Take care not to spill gasohol. It
can damage your vehicle’s paint.
■Fuel-related poor driveability
If poor driveability (poor hot start-
ing, vaporization, engine knock-
ing, etc.) is encountered after
using a different type of fuel, dis-
continue the use of that type of
fuel.

5238-1. Specifications
8
Vehicle specifications
HIGHLANDER HV_U
Chafer
This information has been pre-
pared in accordance with regu-
lations issued by the National
Highway Traffic Safety Adminis-
tration of the U.S. Department of
Transportation.
It provides the purchasers
and/or prospective purchasers
of Toyota vehicles with informa-
tion on uniform tire quality grad-
ing.
Your Toyota dealer will help answer
any questions you may have as you
read this information.
■DOT quality grades
All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to
these grades. Quality grades
can be found where applicable
on the tire sidewall between
tread shoulder and maximum
section width.
For example: Treadwear 200 Trac-
tion AA Temperature A
■Treadwear
The treadwear grade is a com-
parative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course.
For example, a tire graded 150 would wear one and
a half (1 - 1/2)
times as well on the government
course as a tire graded 100.
The relative performance of tires
depends upon the ac tual conditions
of their use. Performance may differ
significantly from the norm due to
variations in driving habits, service
practices and diff erences in road
characteristic s and climate.
■Traction AA, A, B, C
The traction grades, from high-
est to lowest, are AA, A, B and
C, and they represent the tire’s
ability to stop on wet pavement
as measured under controlled
conditions on specified govern-
ment test surfaces of asphalt
and concrete.
A tire marked C may have poor
traction performance.
Warning: The traction grade
assigned to this tire is based on
braking (straight ahead) traction
tests and does not include corner-
ing (turning) traction.
■Temperature A, B, C
The temperature grades are A
(the highest), B, and C, repre-
senting the tire’s resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Uniform Tire Quality
Grading

568Alphabetical Index
HIGHLANDER HV_UReplacing
Electronic key battery ........... 444
Fuses ................................... 446
Light bulbs ............................ 449
Tires ..................................... 481
Reporting safety defects for U.S. owners................................... 544
Resetting the message indicat- ing maintenance is required 407
Road Sign Assist .................... 283
RSA (Road Sign Assist) ......... 283
S
Safety Connect ......................... 65
Seat belt reminder light . 469, 470
Seat belts .................................. 27 Automatic Locking Retractor .. 28
Child restraint system installation............................................. 52
Cleaning and maintaining the seat belt.............................. 403
Emergency Locking Retractor 28
How to wear your seat belt..... 28
How your child should wear the seat belt................................ 28
Pregnant women, proper seat belt use................................. 27
Reminder light and buzzer . 469, 470
Seat belt extender .................. 28
Seat belt pretensioners .......... 32
SRS warning light................. 468
Seat heaters ............................ 358
Seat position memory ............ 159
Seat ventilators ...................... 358
Seating capacity ..................... 200
Seats Adjustment ........................... 153
Adjustment precautions........ 153
Child seats/child restraint system installation ............................ 50
Cleaning ............................... 403 Driving position memory .......159
Head restraints .....................162
Properly sitting in the seat ......25
Seat heaters .......
..................358
Seat position memory...........159
Seat ventilators.....................358
Sensor Automatic headlight system .230
Automatic High Beam system...........................................232
Digital Rearview Mirror .........171
Inside rear view mirror ..........167
Intuitive parking assist ..........292
LTA (Lane Tracing Assist) .....260
Parking Support Brake function (rear-crossing vehicles) ......318
Parking Support Brake function (static objects) ....................313
Radar sensor ................243, 288
Rain-sensing windshield wipers ...........................................237
RCTA ....................................301
Service plug ..............................75
Service reminder message ....407
Shift lever Hybrid transmission ..............220
If th e s hif t le ver ca n no t b e s hif te d from P .................................221
Shift lever light........................362
Shift lock system ....................221
Shopping bag hooks ..............370
Side airbags ..............................34
Side doors Door lock ..............................131
Side marker lights Light switch...........................229
Replacing light bulbs ............449
Side mirrors Adjustment ...........................177
BSM (Blind Sport Monitor) ....286
Heaters .........................344, 348