Toyota Tundra (2019 year). Manual — part 37

Confirm it is not loose after
tightening:

Push and pull the tire
Try rotating

Visually check to ensure tire is

not hung on surrounding parts.

If looseness or misassembly exists, repeat step

and step

Repeat step

, any time the tire is lowered or disturbed.

Stow the tools and jack securely.

■

The temporary spare tire

●

The temporary spare tire is identified by the “TEMPORARY USE ONLY”

marking on the disc wheel and/or tire sidewall.

Use the temporary spare tire temporarily, and only in an emergency.

●

Make sure to check the tire inflation pressure of the temporary spare

tire. (

P. 606)

■

When reinstalling the wheel ornament (on some models)
P. 511

■

When using the temporary spare tire
As the temporary spare tire is not equipped with the tire pressure warning

valve and transmitter, low inflation pressure of the spare tire will not be

indicated by the tire pressure warning system. Also, if you replace the

temporary spare tire after the tire pressure warning light comes on, the

light remains on.

■

If you have a flat rear tire on a road covered with snow or ice
Install the temporary spare tire on one of the front wheels of the vehicle.

Perform the following steps and fit tire chains to the rear tires:

Replace a front tire with the temporary spare tire.
Replace the flat rear tire with the tire removed from the front of the

vehicle.
Fit tire chains to the rear tires.

578

WARNING

■

When using the temporary spare tire

●

Remember that the temporary spare tire provided is specifically

designed for use with your vehicle. Do not use your temporary spare

tire on another vehicle.

●

Do not use more than one temporary spare tires simultaneously.

●

Replace the temporary spare tire with a standard tire as soon as possi-

ble.

●

Avoid sudden acceleration, abrupt steering, sudden braking and shift-

ing operations that cause sudden engine braking.

■

When the spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-

tems may not operate correctly:

Also, not only can the following system not be utilized fully, but it may

even negatively affect the drive-train components:

• 4WD system

■

Speed limit when using the temporary spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a temporary

spare tire is installed on the vehicle.
The temporary spare tire is not designed for driving at high speeds. Fail-

ure to observe this precaution may lead to an accident causing death or

serious injury.

• ABS & Brake assist

• VSC

• TRAC

• AUTO LSD

• Pre-Collision System*

: If equipped

• Automatic High Beam*

• LDA (Lane Departure Alert)*

• Dynamic radar cruise control*

• Cruise control*

• Navigation system*

579

NOTICE

■

Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.

Driving even a short distance with a flat tire can damage the tire and the

wheel beyond repair.

■

Driving with tire chains and the temporary spare tire
Do not fit tire chains to the temporary spare tire.

Tire chains may damage the vehicle body and adversely affect driving

performance.

■

When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning

valve and transmitter, contact your Toyota dealer as the tire pressure

warning valve and transmitter may be damaged if not handled correctly.

■

To avoid damage to the tire pressure warning valves and transmit-

ters
When a tire is repaired with liquid sealants, the tire pressure warning

valve and transmitter may not operate properly. If a liquid sealant is

used, contact your Toyota dealer or other qualified service shop as soon

as possible. Make sure to replace the tire pressure warning valve and

transmitter when replacing the tire. (

P. 496)

580

If the engine will not start

One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.

Refuel the vehicle.
Flex-fuel vehicles: The type of fuel may be different. When refuel-
ing, add the same type of fuel, if available.
After adding a different type of fuel, the engine may run roughly and
driving performance may be reduced for a while when the engine is
first started. In this case, wait until the engine runs normally.

● The engine may be flooded.

Try to restart the engine again following correct starting procedures.
(

P. 194)

● There may be a malfunction in the engine immobilizer system.

(

P. 76)

If the engine will not start even though correct starting proce-
dures are being followed (

P. 194), consider each of the follow-

ing points.

The engine will not start even though the starter motor operates
normally.

581

One of the following may be the cause of the problem:
● The battery may be discharged. (P. 582)
● The battery terminal connections may be loose or corroded.

One of the following may be the cause of the problem:
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. (P. 582)

Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.

The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.

The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.

582

If the vehicle battery is discharged

If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.

Confirm that the key and wire-
less

remote

control

(if

equipped) are being carried.

When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and the doors may lock. (

P. 87)

Open the hood. (

P. 484)

Connect the jumper cables according to the following procedure:

Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect the clamp on the other end of the positive cable to the
positive (+) battery terminal on the second vehicle.

The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.

583

Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.
Connect the clamp at the other end of the negative cable to a
solid, stationary, unpainted metallic point away from the battery
and any moving parts, as shown in the illustration.

Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.
Maintain the engine speed of the second vehicle and start the
engine of your vehicle.
Once the vehicle’s engine has started, remove the jumper cables in
the exact reverse order from which they were connected.

Once the engine starts, have the vehicle inspected at your Toyota
dealer as soon as possible.

■

Starting the engine when the battery is discharged
The engine cannot be started by push-starting.

■

To prevent battery discharge

●

Turn off the headlights and the audio system while the engine is off.

●

Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.

■

When the battery is removed or discharged
The moon roof must be initialized. (

P. 156)

■

Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)

584

WARNING

■

Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:

●

Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.

●

Do not allow the + and - clamps of the jumper cables to come into contact
with each other.

●

Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.

■

Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:

●

When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.

●

Do not lean over the battery.

●

In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.

●

Always wash your hands after handling the battery support, terminals, and
other battery-related parts.

●

Do not allow children near the battery.

NOTICE

■

When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or belt.

585

If your vehicle overheats

● The needle of the engine coolant temperature gauge (P. 95)

enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)

● “ENGINE COOLANT OVERTEMP” is shown on the multi-informa-

tion display.

● Steam comes out from under the hood.

Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.

Radiator
Cooling fan

If a large amount of coolant leaks,
immediately contact your Toyota
dealer.

The following may indicate that your vehicle is overheating:

Correction procedures

586

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

Reservoir
“FULL”
“LOW”
Radiator cap

Add coolant if necessary.

Water can be used in an emer-
gency if coolant is unavailable.

Start the engine to check that the radiator cooling fan operates and
to check for coolant leaks from the radiator or hoses.
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Toyota dealer.

587

WARNING

■

When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.

●

If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.

●

Keep hands and clothing away from the fans, etc., while the engine is run-
ning.

●

Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
High temperature steam or coolant could spray out.

NOTICE

■

When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.

■

To prevent damage to the cooling system
Observe the following precautions:

●

Avoid contaminating the coolant with foreign matter (such as sand or dust,
etc.).

●

Do not use any coolant additives.

588

If the vehicle becomes stuck

Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material to help provide traction
under the rear wheels.
Restart the engine.
Shift the shift lever to D or R and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.

■

When it is difficult to free the vehicle

Press

to turn off TRAC.

Turn off TRAC and/or VSC if these functions are hampering your attempts to
free the vehicle. (

P. 301, 3 03)

Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:

WARNING

■

When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the
surrounding area is clear to avoid striking other vehicles, objects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.

■

When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident resulting in death or serious injury.

589

NOTICE

■

To avoid damage to the transmission and other components

●

Avoid spinning the rear wheels and depressing the accelerator pedal more
than necessary.

●

If the vehicle remains stuck even after these procedures are performed,
the vehicle may require towing to be freed.

●

When a warning message for the automatic transmission fluid temperature
is displayed while attempting to free a stuck vehicle, immediately remove
your foot from the accelerator pedal and wait until the warning message
disappears. Otherwise, the transmission may become damaged.
(

P. 555)

590