2023 TOYOTA HIGHLANDER adding oil

3826-3. Do-it-yourself maintenance
6-3.Do-it-yourself maintenance
Do-it-yourself ser vice
precautions
If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.
Maintenance
ItemsParts and tools
Battery condi-
tion (P.391)
• Warm water
• Baking soda
•Grease
• Conventional
wrench (for ter-
minal clamp
bolts)
Brake fluid
level ( P.390)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding
brake fluid)
Engine cool-
ant level
( P.389)
• “Toyota Super
Long Life Cool-
ant” or a similar
high quality eth-
ylene gly-
col-based
non-silicate,
non-amine,
non-nitrite and
non-borate cool-
ant with long-life
hybrid organic
acid technology
For the U.S.A.:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 50% cool-
ant and 50%
deionized water.
For Canada:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 55% cool-
ant and 45%
deionized water.
• Funnel (used only for adding
coolant)
Engine oil level
( P.386)
• “Toyota Genuine
Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses
( P.412)• Fuse with same
amperage rating
as original
ItemsParts and tools

3836-3. Do-it-yourself maintenance
6
Maintenance and care
Headlight aim
( P.414)• Phillips-head
screwdriver
Light bulbs
( P.415)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Flathead screw- driver
• Wrench
Radiator and
condenser
(  P.390)

Tire inflation
pressure
( P.405)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.392)
• 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.
■When working on the engine
compartment
●Keep hands, clothing and tools
away from the moving fan and
engine drive belt.
ItemsParts and tools●Be careful not to touch the
engine, radiator, exhaust mani-
fold, etc. right a fter 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 or
the battery. Fuel and battery
fumes are flammable.
●Be extremely cautious when
working on the battery. It con-
tains poisonous and corrosive
sulfuric acid.
■When working near the elec-
tric cooling fan or radiator
grille
Be sure the engine switch is off.
With the engine 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.390)
■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.

3866-3. Do-it-yourself maintenance
Engine coolant reservoir ( P.389)
Fuse boxes ( P.412)
Engine oil filler cap ( P.387)
Engine oil level dipstick ( P.386)
Battery ( P.391)
Brake fluid reservoir ( P.390)
Washer fluid tank ( P.392)
Electric cooling fan
Condenser ( P.390)
Radiator ( P.390)
With the engine at operating
temperature and turned off,
check the oil level on the dip- stick.
■Checking the engine oil
1 Park the vehicle on level
ground. After warming up the
engine and turning it off, wait
Engine compar tment
Components
Checking and adding the
engine oil

3876-3. Do-it-yourself maintenance
6
Maintenance and care
more than 5 minutes for the
oil to drain back into the bot-
tom of the engine.
2 Holding a rag under the end,
pull the dipstick out.
3 Wipe the dipstick clean.
4 Reinsert the dipstick fully.
5 Holding a rag under the end,
pull the dipstick out and
check the oil level.
Low
Normal
Excessive
The shape of the dipstick may differ
depending on the type of vehicle or
engine.
6Wipe the dipstick and reinsert
it fully.
■Checking the oil type and
preparing the item needed
Make sure to check the oil type
and prepare the items needed
before adding oil.
 Engine oil selection
P.476
 Oil quantity (Low  Full)
1.9 qt. (1.8 L, 1.6 Imp. qt.)
 Item
Clean funnel
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
1 Remove the oil filler cap by
turning it counterclockwise.
2 Add engine oil slowly, check-
ing the dipstick.
3 Install the oil filler cap by
turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will
be consumed while driving. In the
following situatio ns, oil consump-
tion may increase, and engine oil
may need to be refilled in between
oil maintenance intervals.

537Alphabetical Index
RCTA (Rear Cross Traffic Alert)........................................... 436
Seat belt ....................... 434, 435
Warning lights ........................ 431 ABS ...................................... 433
Brake hold operated indicator........................................... 438
Brake Override System ........ 433
Brake system ....................... 431
Charging system .................. 432
Drive-Start Control ............... 433
Electric power steering ......... 433
High coolant temperature ..... 431
Intuitive parking assist OFF indi- cator ................................... 436
Low engine oil pressure ....... 432
Low fuel level ....................... 434
LTA indicator ......................... 436
Malfunction indicator lamp ... 432
Parking brake indicator ........ 438
PKSB OFF indicato r ............. 437
Pre-collision system ............. 437
RCTA OFF indicator ............. 436
Seat belt reminder light 434, 435
Slip indicator......................... 438
SRS ...................................... 432
Stop & Start cancel indicator 436
Tire pressure ........................ 435
Warning message..................... 95
Warning messages................. 442
Washer Adding .................................. 392
Preparing and c hecking before
winter.................................. 314
Switch........................... 216, 219
Washing and waxing .............. 370
Weight Cargo capacity ..................... 184
Load limits ............................ 184
Weight .................................. 474
Wheels ..................................... 407 Size ...................................... 479 Window lock switch ...............164
Windows
Power windows ....................162
Rear window defogger .........324
Washer .........................216, 219
Windshield defogger ..............324
Windshield wiper de-icer .......324
Windshield wipers Rain-sensing windshield wipers...................................216, 219
Winter driving tips ..................314
Wireless charger.....................350
Wireless remote control Battery-Saving Function .......132
Locking/Unlocking ................ 113
Replacing the battery ...........410
For infor mation regarding the equipment listed
below, refer to the “MUL-
TIMEDIA OWNER’S MAN-
UAL”.
· Navigation system
· Audio/visual system
· Rear view monitor system
· Toyota parking assist monitor
· Panoramic view monitor