2021 TOYOTA HIGHLANDER HYBRID low oil pressure

852-1. Instrument cluster
2
Vehicle status information and indicators
HIGHLANDER HV_U
7-inch display
The units used on the meters and some indicators may differ
depending on the target region.
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
(U.S.A.)
Brake system warning
light
*1 (  P.466)
(red)
(Canada)
Brake system warning
light
*1 (  P.466)
(yellow)
Brake system warning
light
*1 ( P.466)
High coolant temperature
warning light
*2 (  P.466)
Hybrid system overheat
warning light
*2 (  P.467)
Charging system warning
light
*2 (  P.467)
Low engine oil pressure
warning light
*2 (  P.467)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.467)
(Canada)
Malfunction indicator
lamp
*1 ( P.467)
SRS warning light
*1
(  P.468)
(U.S.A.)
ABS warning light*1
(  P.468)
(Canada)
ABS warning light*1
(  P.468)
Brake Overri de System
warning light/Drive-Start
Control warning light
*2
(  P.468)
(red/yel-
low)
Electric power steering
system warning light
( P.469)
Low fuel leve l warning
light
*1(  P.469)

3334-6. Driving tips
4
Driving
HIGHLANDER HV_U
Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
Have a service technician
inspect the condition of the
12-volt battery.
 Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the front
tires.
Ensure that all tires are the same
size and brand, and that chains
match the size of the tires.
Perform the following according
to the driving conditions:
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Pre-winter preparations
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
■Driving with tire chains
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden engine braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use the LTA (Lane Trac-
ing Assist) system.
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from Toyota dealers or
legitimate tire retailers.
This is because the removal and
attachment of snow tires affects
the operation of the tire pressure
warning valves and transmitters.
Before driving the vehicle

4006-1. Maintenance and care
HIGHLANDER HV_U
6-1.Maintenance and care
Working from top to bottom,
liberally apply water to the
vehicle body, wheel wells and
underside of the vehicle to
remove any dirt and dust.
 Wash the vehicle body using
a sponge or soft cloth, such
as a chamois.
 For hard-to-remove marks,
use car wash soap and rinse
thoroughly with water.
 Wipe away any water.
 Wax the vehicle when the
waterproof coating deterio-
rates.
If water does not bead on a clean
surface, apply wax when the vehi-
cle body is cool.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Turn off the power back door
Start washing from the front of the
vehicle. Extend the mirrors before
driving.
●Brushes used in automatic car
washes may scratch the vehicle
surface, parts (wheel, etc.) and
harm your vehicle’s paint.
●Rear spoiler may not be washable
in some automatic car washes.
There may also be an increased
risk of damage to vehicle.
■High pressure car washes
As water may enter the cabin, do
not bring the nozzle tip near the
gaps around the doors or perimeter
of the windows, or spray these
areas continuously.
■When using a car wash
If the door handle becomes wet
while the electronic key is within the
effective range, the door may lock
and unlock repeatedly. In that case,
follow the following correction pro-
cedures to wash the vehicle:
●Place the key in a position 6 ft. (2
m) or more separate from the
vehicle while the vehicle is being
washed. (Take care to ensure that
the key is not stolen.)
●Set the electronic key to bat-
tery-saving mode to disable the
smart key system. ( P.147)
■Wheels and wheel ornaments
●Remove any dirt immediately by
using a neutral detergent.
●Wash detergent off with water
immediately after use.
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such
as after driving or parking in hot
weather
■Bumpers
Do not scrub with abrasive cleaners.
■Plated portions
If dirt cannot be re moved, clean the
parts as follows:
●Use a soft cloth dampened with an
approximately 5% solution of neu-
Cleaning and protect-
ing the vehicle exte-
rior
Perform cleaning in a man-
ner appropriate to each
component and its material.
Cleaning instructions

4136-3. Do-it-yourself maintenance
6
Maintenance and care
HIGHLANDER HV_U
Hybrid battery
(traction bat-
tery) air intake
vent (P.441)• Vacuum cleaner,
etc.
• Phillips screw- driver
Headlight aim
( P.448)• Phillips-head
screwdriver
Light bulbs
( P.449)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Flathead screw- driver
• Wrench
Radiator and
condenser
(  P.419)

Tire inflation
pressure
( P.436)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.420)
• Water or washer
fluid containing
antifreeze (for
winter use)
• Funnel (used only for adding
water or washer
fluid)
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.
ItemsParts and tools■When working on the engine
compartment
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-information display
and the “READY” indicator are
both off.
●Be careful not to touch the
engine, power control unit, radi-
ator, 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 compart-
ment.
●Do not smoke, cause sparks or
expose an open flame to fuel.
Fuel fumes are flammable.
■When working near the elec-
tric cooling fan or radiator
grille
Be sure the power switch is off.
With the power switch in ON, the
electric cooling fa n may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. ( P.419)
■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.

4386-3. Do-it-yourself maintenance
HIGHLANDER HV_U
When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diam-
eter, rim width and inset
*.
Replacement wheels are avail-
able at your Toyota dealer.
*: Conventionally referred to as off- set.
Toyota does not recommend
using the following:
 Wheels of different sizes or
types
 Used wheels
 Bent wheels that have been
straightened
■When replacing wheels
The wheels of your vehicle are
equipped with tire pressure warning
valves and transmitters that allow
the tire pressure warning system to
provide advance warning in the
event of a loss in tire inflation pres-
sure. Whenever wheels are
replaced, tire pressure warning
valves and transmitters must be
installed. ( P.429)
Wheels
If a wheel is bent, cracked or
heavily corroded, it should
be replaced. Otherwise, the
tire may separate from the
wheel or cause a loss of
handling control.
Wheel selection
WARNING
■When replacing wheels
●Do not use wheels that are a dif-
ferent size from those recom-
mended in the Owner’s Manual,
as this may result in a loss of
handling control.
●Never use an inner tube in a
leaking wheel which is designed
for a tubeless tire.
Doing so may result in an acci-
dent, causing death or serious
injury.
■When installing the wheel
nuts
Never use oil or grease on the
wheel bolts or wheel nuts.
Oil and grease may cause the
wheel nuts to be excessively tight-
ened, leading to bolt or disc wheel
damage. In addition, the oil or
grease can cause the wheel nuts
to loosen and the wheel may fall
off, causing an accident and
resulting in death or serious injury.
Remove any oil or grease from
the wheel bolts or wheel nuts.
■Use of defective wheels pro-
hibited
Do not use cracke d or deformed
wheels. Doing so could cause the
tire to leak air during driving, pos-
sibly causing an accident.
NOTICE
■Replacing tire pressure warn-
ing valves and transmitters
●Because tire repair or replace-
ment may affect the tire pres-
sure warning valves and
transmitters, make sure to have
tires serviced by your Toyota
dealer or other qualified service
shop. In additio n, make sure to
purchase your tire pressure
warning valves and transmit-
ters at your Toyota dealer.

4677-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER HV_U
■Hybrid system overheat warning light*(warning buzzer)
*: This light illuminat es on the multi-information display.
■Charging system warning light*
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp
Warning lightDetails/Actions
Indicates the hybrid s ystem has overheated
 Stop the vehicle in a safe place.
Handling method ( P.505)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The hybrid system;
 The electronic engine control system; or
 The electronic thrott le control system;
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

4807-2. Steps to take in an emergency
HIGHLANDER HV_Uare shown on the multi-informa-
tion display, it may indicate a mal-
function. Immediat
ely stop the
vehicle and contact your Toyota
dealer.
• “Braking Power Low Stop in a
Safe Place See Owner's Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner's Manual”
• “Charging System Malfunction Stop in a Safe Place See Owner's
Manual”
• “Stop in a Safe Place See Owner's Manual”
• “Shift to P See Owner's Manual”
●If any of the following messages
are shown on the multi-informa-
tion display, the vehicle may have
run out of fuel. Stop the vehicle in
a safe place and, if the fuel level is
low, refuel the vehicle.
• “Hybrid System Stopped”
• “Engine Stopped”
●If any of the following messages
are shown on the multi-informa-
tion display, it may indicate a mal-
function. Have the vehicle
inspected by you r Toyota dealer
immediately.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunc- tion”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction
See Owner's Manual”
●If any of the following messages
are shown on the multi-informa-
tion display, follow the instruc-
tions.
• “Engine Coolant Temp High Stop in a Safe Place See Owner's Man-
ual” ( P.504)
• “Maintenance Required for Trac- tion Battery Cooling Parts See
Owner's Manual” ( P.441)
NOTICE
■If “High Power Consumption
Partial Limit on AC/Heater
Operation” is displayed fre-
quently
There is a possible malfunction
relating to the charging system or
the 12-volt battery may be deteri-
orating. Have the vehicle
inspected by you r Toyota dealer.

571Alphabetical Index
HIGHLANDER HV_UTraction Control (TRAC) ........ 325
Traction motor (electric motor)71
Trail Mode ............................... 323
Trailer Sway Control .............. 325
Trailer towing .......................... 201
Transmission
Driving mode select switch... 322
Hybrid transmission.............. 220
If the shift lever cannot be shifted from P................................. 221
S mode ................................. 222
Trip meters ................................ 91
Turn signal lights Replacing light bulbs ............ 449
Turn signal lever ................... 223
U
USB charging ports................ 374
V
Vanity lights ............................ 388
Vanity mirrors ......................... 388
VDIM (Vehicle Dynamics Inte-grated Management) ............ 326
Vehicle data recording ............... 6
Vehicle Dynamics Integrated Management (VDIM) ............. 326
Vehicle identifi cation number510
Vehicle information display ... 96, 106
Vehicle Stability Control (VSC) ............................................... 325
Ventilators (seat ventilators) . 358
VSC (Vehicle Stability Control) ............................................... 325
W
Warning buzzers ABS ...................................... 468
Airbags ................................. 468 Approach warning ................278
Brake hold ............................473
Brake Override System ........468
Brake system ........................466
Charging system ..................467
Downshifting .........................222
Drive-Start Control
................468
Electric power steering .........469
Engine ..................................467
Hands off steering wheel warn- ing (LTA) .............................269
High coolant temperature .....466
Hybrid system .......................467
Hybrid system overheat ........467
Intuitive parking assist .296, 299, 471
Low engine oil pressure .......467
LTA (Lane Tracing Assist) ...260, 264, 470
Open door ....................132, 134
PKSB (Parking Support Brake) ...........................................471
Pre-collision braking .............251
RCTA (Rear Cross Traffic Alert) ...........................................471
RCTA function.......................301
Seat belt .......................469, 470
Warning label ............................75
Warning lights .........................466 ABS ......................................468
Brake hold operated indicator...........................................473
Brake Override System ........468
Brake system ........................466
Charging system ..................467
Drive-Start Control ................468
Electric power steering .........469
High coolant temperature .....466
Hybrid system overheat warning light .....................................467
Intuitive parking assist OFF indi- cator ...................................471