coolant temperature TOYOTA HIGHLANDER HYBRID 2023 Owners Manual

832-1. Instrument cluster
2
Vehicle status information and indicators
12.3-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.445)
(red)
(Canada)
Brake system warning
light
*1 (  P.445)
(yellow)
Brake system warning
light
*1 ( P.445)
High coolant temperature
warning light
*2 (  P.445)
Hybrid system overheat
warning light
*2 (  P.446)
Charging system warning
light
*2 (  P.446)
Low engine oil pressure
warning light
*2 (  P.446)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.446)
(Canada)
Malfunction indicator
lamp
*1 ( P.446)
SRS warning light
*1
(  P.447)
(U.S.A.)
ABS warning light*1
(  P.447)
(Canada)
ABS warning light*1
(  P.447)
Inappropriate pedal opera-
tion warning light
*2
(  P.447)
(red/yel-
low)
Electric power steering
system warning light
( P.448)
Low fuel leve l warning
light
*1(  P.448)

872-1. Instrument cluster
2
Vehicle status information and indicators
■Locations of gauges and meters
The units used on the meters may differ depending on the target region.
Hybrid System Indicator
Displays hybrid system output or regeneration level ( P. 8 8 )
Multi-information display
Presents the driver with a variety of vehicle data (P.96)
Displays warning messages in case of a malfunction (P.456)
Clock ( P. 9 0 )
Speedometer
Fuel gauge
Displays the quantity of fu el remaining in the tank
Odometer and trip meter display ( P.89)
Shift position display ( P.213)
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to 122°F
(50°C). Low outside temperature indicator comes on when the amb ient
temperature is 37°F (3°C) or lower.
Engine coolant temperature gauge
Displays the engine c oolant temperature
Gauges and meters (7-inch display)
Meter display

912-1. Instrument cluster
2
Vehicle status information and indicators
■Locations of gauges and meters
2-dial display
The units used on the meters may differ depending on the target region.
Hybrid System Indicator
Displays hybrid system output or regeneration level ( P. 9 4 )
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to 140°F
(60°C)
Speedometer
Clock ( P. 9 6 )
Speedometer
Engine coolant temperature gauge
Displays the engine c oolant temperature
Odometer and trip meter display ( P.95)
Multi-information display
Presents the driver with a variety of vehicle data (P.106)
Displays warning messages if a malfunction occurs (P.456)
Shift position indicator ( P.213)
Fuel gauge
Displays the quantity of fu el remaining in the tank
Gauges and meters (12.3-inch display)
Meter display

922-1. Instrument cluster
Driving range
Displays driving range with remaining fuel.
1-dial display
The units used on the meters may differ depending on the target region.
Multi-information display
Presents the driver with a variety of vehicle data (P.106)
Displays warning messages if a malfunction occurs (P.456)
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to 140°F
(60°C)
Hybrid System Indicator/Speedometer
Hybrid System Indicator: Display s hybrid system output or regeneration
level ( P. 9 4 )
This setting can be changed on the setting screen. ( P.108)
Clock ( P. 9 6 )
Engine coolant temperature gauge
Displays the engine c oolant temperature
Odometer and trip meter display ( P.95)
Speedometer
Shift position indicator ( P.213)
Fuel gauge
Displays the quantity of fu el remaining in the tank
Driving range
Displays driving range with remaining fuel.

932-1. Instrument cluster
2
Vehicle status information and indicators
Non-dial display
The units used on the meters may differ depending on the target region.
Multi-information display
Presents the driver with a variety of vehicle data (P.106)
Displays warning messages if a malfunction occurs (P.456)
Outside temperature
Displays the outside temperature within the range of -40°F (-40 °C) to 140°F
(60°C)
Speedometer
Clock ( P. 9 6 )
Engine coolant temperature gauge
Displays the engine c oolant temperature
Odometer and trip meter display ( P.95)
Shift position indicator ( P.213)
Fuel gauge
Displays the quantity of fu el remaining in the tank
Driving range
Displays driving range with remaining fuel.

952-1. Instrument cluster
2
Vehicle status information and indicators
■Changing the display
Each time the “ODO TRIP”
switch is pressed, the displayed
item will be changed. When the
trip meter is displayed, pressing
and holding the switch will reset the trip meter.
■Display items
 Odometer
Displays the total distance the vehi-
cle has been driven.
 Trip meter A/Trip meter B
Displays the distance the vehicle
has been driven since the meter
was last reset. Trip meters A and B
can be used to record and display
different distances independently.
Distance until next engine oil
change
Displays the distance the vehicle
can be driven until an oil change is
necessary.
■Pop-up display
In some situations the following
will be temporarily displayed:
Distance until next engine oil
change
Displays the distance until the next
engine oil change. This display will
be displayed in the following situa-
tions:
 When the power switch is
turned to ON.
 When a warning message
indicating that oil mainte-
WARNING
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before u sing the liquid
crystal informat ion display. At
extremely low temperatures, the
information display monitor may
respond slowly, and display
changes may be delayed.
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the i ndicator needle
of the tachomete r enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.484)
Odometer and trip meter
display

2054-1. Before driving
4
Driving
overheat and result in
reduced braking efficiency.
 Due to the added load of the
trailer, your vehicle’s engine
may overheat on hot days (at
temperatures over 85°F
[30°C]) when driving up a long
or steep grade. If the engine
coolant temperature gauge
indicates overheating, imme-
diately turn off the air condi-
tioning (if in use), pull your
vehicle off the road and stop
in a safe spot. ( P.484)
 Always place wheel blocks
under both the vehicle’s and
the trailer’s wheels when
parking. Put the transmission
in P and apply the parking
brake. Avoid parking on a
slope, but if unavoidable, do
so only after performing the
following:
1 Apply the brakes and keep
them applied.
2 Have someone place wheel
blocks under both the vehi-
cle’s and trailer’s wheels.
3 When the wheel blocks are in
place, release the brakes
slowly until the blocks absorb
the load.
4 Shift into P and apply the
parking brake.
5 Turn off the hybrid system.
 When restarting after parking
on a slope: 1
With the transmission in P,
start the hybrid system. Be
sure to keep the brake pedal
depressed.
2 Shift into a forward gear. If
reversing, shift into R.
3 If the parking brake is in man-
ual mode, release the park-
ing brake. ( P.217)
4 Release the brake pedal, and
slowly pull or back away from
the wheel blocks. Stop and
apply the brakes.
5 Have someone retrieve the
blocks.

3936-3. Do-it-yourself maintenance
6
Maintenance and care
Hybrid battery
(traction bat-
tery) air intake
vent (P.420)• Vacuum cleaner,
etc.
• Phillips screw- driver
Headlight aim
( P.427)• Phillips-head
screwdriver
Light bulbs
( P.428)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Flathead screw- driver
• Wrench
Radiator and
condenser
(  P.400)

Tire inflation
pressure
( P.415)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.401)
• 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.400)
■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.

3966-3. Do-it-yourself maintenance
Engine coolant reservoir ( P.399)
Fuse boxes ( P.425)
Engine oil filler cap ( P.397)
Engine oil level dipstick ( P.397)
Brake fluid reservoir ( P.400)
Washer fluid tank ( P.401)
Electric cooling fan
Condenser ( P.400)
Radiator ( P.400)
Power control unit coolant reservoir ( P.399)
■12-volt battery
 P. 4 0 2
With the engine at operating
temperature and turned off,
check the oil level on the dip-
Engine compar tment
Components
Checking and adding the
engine oil

4437-2. Steps to take in an emergency
7
When trouble arises
When using a flat-bed truck to
transport the vehicle, use tire
strapping belts. Refer to the
owner's manual of the flat-bed
truck for the tire strapping
method.
In order to suppress vehicle
movement during transporta-
tion, set the parking brake and
turn the power switch off. 
Fluid leaks under the vehicle
(Water dripping from the air
conditioning after use is nor-
mal.)
 Flat-looking tires or uneven
tire wear
 Engine coolant temperature
gauge needle continually
points higher than normal
 Changes in exhaust sound
 Excessive tire squeal when
cornering
 Strange noises related to the
suspension system
 Pinging or other noises
related to the hybrid system
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
NOTICE
■Towing with a sling-type truck
Do not tow with a sling-type truck
to prevent body damage.
2WD models
AWD models
Using a flatbed truck
NOTICE
■To prevent damage to the
vehicle during emergency
towing
Do not secure cables or chains to
the suspension components.
If you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms