2023 TOYOTA HIGHLANDER HYBRID engine oil

4467-2. Steps to take in an emergency
■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.486)
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.

4577-2. Steps to take in an emergency
7
When trouble arises
The warning lights and warning buzzers operate as follows depend-
ing on the content of the message. If a message indicates the need
for inspection by a dealer, have the vehicle inspected by your To y o t a
dealer immediately.
*: A buzzer sounds the first time a message is shown on the multi-informa-
tion display.
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check
the level of the engine oil, and add if
necessary.
This message may appear if the
vehicle is stopped on a slope. Move
the vehicle to a l evel surface and
check to see if the message disap-
pears.
Messages and warnings
Warning lightWarning
buzzer
*Warning
-Sounds
 Indicates an important situation, such as
when a system relate d to driving is mal-
functioning or that danger may result if
the correction procedure is not per-
formed
 Indicates a situation, such as when dam-
age to the vehicle or danger may result
Comes on or
flashesSounds
Indicates an importan t situation, such as
when the systems shown on the
multi-information display may be malfunc-
tioning
-Does not sound
 Indicates a condition, such as malfunc-
tion of electrical components, their condi-
tion, or indicates the need for
maintenance
 Indicates a situatio n, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

4597-2. Steps to take in an emergency
7
When trouble arises
resolved. (causes a nd coping meth-
ods: P.240)
■If “Radar Cruise Control
Unavailable” is shown
The dynamic radar cruise control
with full-speed range system cannot
be used temporarily. Use the system
when it becomes available again.
■If a message that indicates the
malfunction of front camera is
displayed
The following sys tems may be sus-
pended until the pr oblem shown in
the message is resolved. ( P.240,
451)
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●Automatic High Beam
●RSA (Road Sign Assist) (if
equipped)
●Dynamic radar cruise control with
full-speed range
■If a message that indicates the
malfunction of radar sensor is
displayed
The following sys tems may be sus-
pended until the pr oblem shown in
the message is resolved. ( P.240,
451)
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●Dynamic radar cruise control with
full-speed range
■If “AWD System Overheated
Switching to 2WD Mode” or
“AWD System Overheated 2WD
Mode Engaged” is displayed
This message may be displayed
when driving under extremely high
load conditions.
Drive the vehicle at low speeds and
stop the vehicle in a safe place with
the hybrid system operating until the
message is cleared.
If the message is not cleared, have
the vehicle inspected by your Toyota dealer.
■If “Check Fuel Cap” is dis-
played
The fuel tank cap is not properly
installed. Correctly install the fuel
tank cap.
■If “Maintenance Required
Soon” is displayed
Indicates that all maintenance
according to the driven distance on
the maintenance schedule
* should
be performed soon.
Comes on approximately 4500
miles (7200 km) after the message
has been reset. If necessary, per-
form maintenance. Please reset the
message after the maintenance is
performed. ( P.387)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Maintenance Required Visit
Your Dealer” is displayed
Indicates that all maintenance is
required to correspond to the driven
distance on the maintenance sched-
ule
*.
Comes on approximately 5000
miles (8000 km) after the message
has been reset. (The indicator will
not work properly unless the mes-
sage has been rese t.) Perform the
necessary maintenance. Please
reset the message after the mainte-
nance is performed. ( P.387)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Oil Maintenance Required
Soon” is displayed
Indicates that the engine oil should
be scheduled to be changed.

4607-2. Steps to take in an emergency
Check the engine oil and change it if
necessary. After changing the
engine oil, make sure to reset the
message. (P.398)
■If “Oil Maintenance Required” is
displayed
Indicates that the engine oil should
be changed.
Check and change the engine oil,
and oil filter by your Toyota dealer.
After changing the engine oil, make
sure to reset the message.
(  P.398)
■If a message that indicates the
need for visiting your Toyota
dealer is displayed
The system or part shown on the
multi-information display is malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer immediately.
■If a message that indicates the
need for referring to Owner’s
Manual is displayed
●If any of the following messages
are 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 your 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.484)
●If “Maintenance Required for Trac-
tion Battery Cooling Parts See
Owner's Manual” is shown, the fil-
ters may be clogged, the air intake
vents may be blocked, or there
may be a gap in the duct. There-
fore, perform the following correc-
tion procedure.
• Cleaning the hybrid battery (trac- tion battery) air intake vents
( P.420)
If the warning message is shown
even if the vents ar e cleaned, have
the vehicle inspected by your Toyota
dealer.
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.

4928-1. Specifications
Front
Rear
■Oil capacity (Drain and
refillreference
*)
*: The engine oil capacity is a refer-
ence quantity to be used when
changing the engine oil. Warm up
the engine and turn off the hybrid
system, wait more than 5 min-
utes, and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is
used in your Toyota vehicle. Use
Toyota approved “Toyota Genu-
ine Motor Oil” or equivalent to
satisfy the following grade and
viscosity.
Oil grade: ILSAC GF-6B multi-
grade engine oil
Recommended viscosity: SAE
0W-16
Electric motor (traction motor)
Ty p ePermanent magnet synchronous
motor
Maximum output134 kW
Maximum torque199 ft•lbf (270 N•m, 27.5 kgf•m)
Ty p ePermanent magnet synchronous
motor
Maximum output40 kW
Maximum torque89 ft•lbf (121 N•m, 12.3 kgf•m)
Hybrid battery (traction battery)
Ty p eNickel-Metal hydride battery
Vo l t a g e7.2 V/module
Capacity6.5 Ah (3HR)
Quantity40 modules
Nominal voltage288 V
Lubrication system
With filter4.8 qt. (4.5 L, 4.0 Imp.
qt.)
Without
filter4.4 qt. (4.2 L, 3.7 Imp.
qt.)

4938-1. Specifications
8
Vehicle specifications
Outside temperature
SAE 0W-16 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
with SAE 0W-16 at the next oil
change.
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability.
Oils with a lower value before the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the
oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if
the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
Cooling system
Capacity
Gasoline
engine10.5 qt. (9.9 L , 8.7 Imp. qt.)
Power con-
trol unit2.0 qt. (1.9 L, 1.7 Imp. qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality et hylene glycol-based
non-silicate, non -amine, non-nitrite, and
non-borate coolant with long-life hybrid organic
acid technology
Do not use pla in water alone.

5048-1. Specifications
Grade C corresponds to a level of
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law. Warning: The temperature grades
of a tire assume tha
t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire infl ation pressure
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 pressure
The maximum cold inf lated pressure to
which a tire may be inflated, shown on the
sidewall of the tire
Recommended inflation pres-
sureCold tire inflation pressure recommended
by a manufacturer
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
hybrid transmission, power steering,
power brakes, power windows, power
seats, radio and heater, to the extent that
these items are available as fac-
tory-installed equipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with stan-
dard equipment, including the maximum
capacity of fuel, oil and coolant, and if so
equipped, air conditioning and additional
weight optional engine

543Alphabetical Index
Cruise controlDynamic radar cruise control with full-speed range .......... 263
Cup holders ............................ 347
Current fuel consumption97, 109
Curtain shield airbags ............. 34
Customizable features ........... 510
D
Daytime running light system223 Replacing light bulbs ............ 428
Defogger Outside rear view mirrors ..... 330
Rear window ........................ 330
Windshield............................ 330
Differential Rear differential oil ............... 494
Digital Rearview Mirror .......... 161
Dimension ............................... 490
Dinghy towing ........................ 206
Display Dynamic radar cruise control with full-speed range .......... 263
Energy monitor ..................... 119
Head-up display ................... 114
Intuitive parking assist .......... 283
LTA (Lane Tracing Assist) ..... 259
Multi-informatio n display 96, 106
RCTA .................................... 291
Warning message ................ 456
Distance until next engine oil change..................................... 89
Do-it-yourself maintenance ... 387
Door courtesy lights .............. 343
Door lock Back door ............................. 131
Side doors ............................ 127
Smart key system................. 142
Wireless remote control ....... 125
Doors Automatic door locking and unlocking system................ 130 Back door .............................131
Door glasses ........................173
Door lock ..............................131
Open door warning buzzer .128,
130
Outside rear view mirrors .....171
Rear door child-protectors ....130
Drive distance .........................101
Drive information ....................101
Driver’s seat position memory Driving position memory .......153
Memory recall function .........155
Driving Break-in tips .........................185
Correct driving posture ...........25
Driving mode select switch ...308
Hybrid vehicle dri ving tips .....318
Procedures ...........................184
Winter drive tips....................320
Driving information display .....97
Driving mode select switch ...308
Driving position memory .......153 Memory recall function .........155
Driving range ....................97, 109
Driving support system informa- tion display............ 100, 108, 111
Dynamic radar cruise control with full-speed range............263Warning message.................273
E
ECB (Electronically Controlled Brake System)....................... 311
ECO Accelerator Guidance....99, 11 0
Eco drive mode .......................308
Eco score .......................... 99, 110
EDR (Event data recorder) .........7
E-Four ......................................312
Elapsed time ...........................101
Electric motor (t raction motor)69