2023 TOYOTA TUNDRA HYBRID adding oil

4546-3. Do-it-yourself maintenance
Owners Manual_USA_M0C052_en
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
12-volt battery
condition
( P.463)
•Grease
•Warm water
• Baking soda
• Distilled water
• Flat-head screw-
driver or
mechanical key
( P. 1 1 0 )
• Conventional wrench (for ter-
minal clamp
bolts)
Brake fluid
level ( P.461)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
FMVSS No.116
DOT 4 or SAE
J1704 brake fluid
• Rag or paper towel
• Funnel (used only for adding
brake fluid)
Engine/inter-
cooler/power
control unit
coolant level
( P.460)
• “Toyota Super
Long Life Cool-
ant” or a similar
high quality eth-
ylene glycol-
based non-sili-
cate, nonamine,
non-nitrite and
non-borate cool-
ant with longlife
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.458)
• “Toyota Genuine
Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses
( P.486)• Fuse with same
amperage rating
as original
ItemsParts and tools

4556-3. Do-it-yourself maintenance
Owners Manual_USA_M0C052_en
6
Maintenance and care
Light bulbs
(  P.490)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Wrench
Radiator and
condenser
(  P.461)

Tire inflation
pressure
( P.476)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.462)
• 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
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-inform ation display
and the “READY” indicator are
both off.
●Keep hands, clothing and tools
away from the moving fan and
engine.
ItemsParts and tools●Be careful not to touch the
engine, inverter, radiator,
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.
■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.461)
■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.

4586-3. Do-it-yourself maintenance
Owners Manual_USA_M0C052_en
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 off the
engine, wait more than 5
minutes for the oil to drain
back into the bottom of the
engine.
2 Holding a rag under the end,
pull the dipstick out.
3 Wipe the dipstick clean.
4 Reinsert the dipstick fully with
its protruding areas ( in the illustration) pointing towards
engine.
5 Holding a rag under the end,
pull the dipstick out and
check the oil level.
Low
Normal
Excessive
6 Wipe the dipstick and reinsert
it fully.
■Checking the oil type and
preparing the items needed
Make sure to check the oil type
and prepare the items needed
before adding oil.
 Engine oil selection
P.543
 Oil quantity (Low  Full)
1.6 qt. (1.5 L, 1.3 Imp.qt.)
Checking and adding the
engine oil

4596-3. Do-it-yourself maintenance
Owners Manual_USA_M0C052_en
6
Maintenance and care
 Items
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 ref illed in between
oil maintenance intervals.
●When the engine is new, for
example directly after purchasing
the vehicle or after replacing the
engine
●If low quality oil or oil of an inap-
propriate viscosity is used
●When driving at high engine
speeds or with a heavy load,
when towing, or when driving
while accelerating o r decelerating
frequently
●When leaving the engine idling for a long time, or when driving fre-
quently through heavy traffic
■After changing the engine oil
The engine oil maintenance data
should be reset. Pe rform the follow-
ing procedures:
1 Press or of the meter
control switches and select .
2 Press or of the meter
control switches, select the
“Vehicle Settings” and then press
.
3 Press or of the meter
control switches, select the “Oil
Maintenance” and then press
.
4 Select the “Yes” and push .
“Reset Complete” is displayed
on the multi-info rmation display.
WARNING
■Used engine oil
●Used engine oil contains poten-
tially harmful contaminants
which may cause skin disorders
such as inflammation and skin
cancer, so care should be taken
to avoid prolonged and
repeated contact. To remove
used engine oil from your skin,
wash thoroughly with soap and
water.
●Dispose of used oil and filters
only in a safe and acceptable
manner. Do not dispose of used
oil and filters in h ousehold trash,
in sewers or onto the ground.
Call your Toyota dealer, service
station or auto parts store for
information concerning recy-
cling or disposal.
●Do not leave used engine oil
within the reach of children.

Owners Manual_USA_M0C052_en
Alphabetical Index607
W
Warning buzzersApproach warning ................ 263
Brake hold ............................ 506
Brake Override System ........ 505
Brake system ....................... 501
Charging system .................. 502
Downshifting......................... 203
Drive-Start Control ............... 505
Electric power steering ......... 503
Engine .................................. 502
Hands off steering wheel warn-ing (LTA) ............................. 251
Hybrid system ...................... 502
Intuitive parking assist .. 280, 504
Low engine oil pressure ....... 502
LTA (Lane Tracing Assist) ... 242, 246, 504
Open door .................... 114, 116
Open window ....................... 161
PCS (Pre-Collision System) . 503
PKSB (Parking Support Brake) ........................................... 504
Pre-collision braking ............. 230
Pre-collision warning ............ 230
RCTA (Rear Cross Traffic Alert) ................................... 282, 505
Seat belt ............................... 507
SRS airbag ........................... 502
Vehicle sway warning function (LTA) ................................... 252
Warning label ............................ 76
Warning lights .................. 87, 501 ABS ...................................... 503
Air suspension malfunction indi-cator ................................... 508
Brake hold operated indicator ........................................... 506
Brake Override System ........ 505
Brake system ....................... 501
Charging system .................. 502 Drive-Start Control
................505
Electric power steering .........503
High coolant temperature .....501
Hybrid system .......................502
Intuitive parking assist OFF indi- cator ...................................504
Low engine oil pressure .......502
Low fuel level........................507
LTA indicator .........................504
Malfunction indica tor lamp ....502
Parking brake indicator.........506
PKSB OFF indicator .............504
Pre-collision syst em .............503
RCTA OFF indicator .............505
Rear differential lock indicator ...........................................506
Seat belt reminder light ........507
Slip indicator .........................505
SRS airbag ...........................502
Tire pressure ...... ..................506
Trailer brake warn ing light ....508
Warning messages ................. 511
Washer .....................................218 Adding ..................................462
Preparing and checking before winter ..................................395
Switch ...................................218
Washing and waxing ..............442
Weight Cargo capacity .....................180
Load limits ............................180
Wheel lock nut ........................516
Wheels .....................................478 Replacing .............................478
Size ......................................547
Wheel lock nut ......................516
Window lock switch ...............162
Windows Power back window..............163
Power windows ....................160
Rear window defogger .........401
Washer .................................218