Toyota Tundra (2019 year). Manual - part 31

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.

Items

Parts and tools

Battery condition
(

P. 492)

• Warm water

• Baking soda

• Grease

• Conventional wrench (for terminal clamp bolts)

Brake fluid level
(

• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)

Engine coolant
level (

P. 488)

• “Toyota Super Long Life Coolant” or a similar high

quality  ethylene  glycol-based  non-silicate,  non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota  Super  Long  Life  Coolant”  is  pre-mixed  with
50% coolant and 50% deionized water.
For Canada:
“Toyota  Super  Long  Life  Coolant”  is  pre-mixed  with
55% coolant and 45% deionized water.

• Funnel (used only for adding coolant)

Engine oil level
(

P. 486)

• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)

Fuses
(

P. 518)

• Fuse with same amperage rating as original

Light bulbs
(

P. 521)

• Bulb with same number and wattage rating as origi-

nal

• Phillips-head screwdriver
• Flathead screwdriver

• Wrench

Power steering
fluid level
(

P. 491)

• Automatic transmission fluid DEXRON

II or III

• Rag or paper towel
• Funnel (used only for adding power steering fluid)

Radiator and
condenser
(



Tire inflation

pressure

(

P. 507)

• Tire pressure gauge

• Compressed air source

Washer fluid
(

P. 494)

• Water or washer fluid containing antifreeze (for win-

ter use)

• Funnel (used only for adding water or washer fluid)

483

Mai
ntenan

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.

●

Be careful not to touch the engine, 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 compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.

●

Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.

■

When working near the electric cooling fan or radiator grille
Be sure the engine switch is off.
With the engine switch in the “ON” position, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. (

■

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.

484

Hood

Pull the hood lock release lever.

The hood will pop up slightly.

Pull up the auxiliary catch lever
and lift the hood.

Release the lock from the inside of the vehicle to open the hood.

WARNING

■

Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.

485

Mai
ntenan

Engine compartment

Washer fluid tank (

P. 494)

Engine oil level dipstick

(

P. 486)

Engine coolant reservoir

(

P. 488)

Engine oil filler cap (

P. 487)

Brake fluid reservoir

(

Fuse box

(

P. 518)

Battery

(

P. 492)

Radiator

(

Cooling fan
Condenser

(

Power steering fluid reservoir

(

P. 491)

486

With the engine at operating temperature and turned off, check the oil
level on the dipstick.

■

Checking the engine oil

Park the vehicle on level ground. After warming up the engine
and turning it off, wait more than 5 minutes for the oil to drain
back into the bottom of the engine.

Wipe the dipstick clean.
Reinsert the dipstick fully.
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.
Wipe the dipstick and reinsert it fully.

Engine oil

Holding a rag under the end,
pull the dipstick out.

487

Mai
ntenan

■

Adding engine oil

Make sure to check the oil type and prepare the items needed
before adding oil.

Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
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
situations, oil consumption may increase, and engine oil may need to be
refilled 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 inappropriate viscosity is used

●

When driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently

●

When leaving the engine idling for a long time, or when driving frequently
through heavy traffic

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.

Engine oil selection

P. 601

Oil quantity
(Low

 Full)

1.6 qt. (1.5 L, 1.3 Imp.qt.)

Items

Clean funnel

488

The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. (

P. 585)

WARNING

■

Used engine oil

●

Used engine oil contains potentially 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 household trash, in sewers or onto the
ground.
Call your Toyota dealer, service station or auto parts store for information
concerning recycling or disposal.

●

Do not leave used engine oil within the reach of children.

NOTICE

■

To prevent serious engine damage
Check the oil level on a regular basis.

■

When replacing the engine oil

●

Be careful not to spill engine oil on the vehicle components.

●

Avoid overfilling, or the engine could be damaged.

●

Check the oil level on the dipstick every time you refill the vehicle.

●

Be sure the engine oil filler cap is properly tightened.

Engine coolant

489

Mai
ntenan

■

Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31

F [-35C])

Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44

F [-42C])

For more details about coolant, contact your Toyota dealer.

■

If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir cap, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.

WARNING

■

When the engine is hot
Do not remove the radiator cap.(

P. 587)

The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

NOTICE

■

When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.

■

If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

490

Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dealer.

■

Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.

■

Adding fluid
Make sure to check the fluid type and prepare the necessary item.

■

Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.

Radiator and condenser

WARNING

■

When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

Brake fluid

Fluid type

FMVSS No.116 DOT 3 or SAE J1703 brake fluid

Items

Clean funnel

491

Mai
ntenan

■

Fluid level
The fluid level should be within the appropriate range.

Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)

Hot:

Vehicle has been driven around 50 mph (80 km/h) for 20
minutes, or slightly longer in frigid temperatures. (Fluid
temperature, 140°F - 175°F [60°C - 80°C])

Cold:

Engine has not been run for about 5 hours. (Room tem-
perature, 50°F - 85°F [10°C - 30°C])

WARNING

■

When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.

NOTICE

■

If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.

Power steering fluid

492

■

Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.

Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.

Check the battery as follows:

■

Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.

Terminals
Hold-down clamp

Fluid type

Automatic transmission fluid DEXRON

II or III

Items

Rag or paper, clean funnel (only for adding fluid)

WARNING

■

Checking the fluid level
Take care, as the reservoir may be hot.

NOTICE

■

When adding fluid
Avoid overfilling, or the power steering may be damaged.

■

After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or
damage.

Battery

493

Mai
ntenan

■

Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:

●

If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.

●

Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.

WARNING

■

Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near
battery:

●

Do not cause sparks by touching the battery terminals with tools.

●

Do not smoke or light a match near the battery.

●

Avoid contact with eyes, skin and clothes.

●

Never inhale or swallow electrolyte.

●

Wear protective safety glasses when working near the battery.

●

Keep children away from the battery.

■

Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is insufficient ventilation.

■

How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.

■

Emergency measures regarding electrolyte

●

If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.

●

If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.

●

If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.

●

If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.

494

Add washer fluid in the following
situations:
● A washer does not work.
● The warning message appears

on the display.

NOTICE

■

When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.

Washer fluid

WARNING

■

When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid
contains alcohol and may catch fire if spilled on the engine, etc.

NOTICE

■

Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not spraying.

■

Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

495

Mai
ntenan

Tires

Check if the treadwear indicators are showing on the tires. Also check
the tires for uneven wear, such as excessive wear on one side of the
tread.
Check the spare tire condition and pressure if not rotated.

New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is shown by a “TWI” or “

”

mark, etc., molded into the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.

Rotate the tires in the order
shown.

To equalize tire wear and extend

tire life, Toyota recommends that

tire rotation is carried out at the

same interval as tire inspection.
Do not fail to initialize the tire

pressure warning system after

tire rotation.

Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.

Checking tires

Tire rotation

Front

496