2014 TOYOTA TUNDRA coolant temperature

882. Instrument cluster
Gauges and meters
Vehicles without multi-information display
Tachometer
Displays the engine speed in revolutions per minute
Engine coolant temperature gauge
Displays the engine coolant temperature
Fuel gauge
Displays the quantity of fuel remaining in the tank
Speedometer
Displays the vehicle speed
“TRIP/INFO” and instrument panel light control button
P. 90, 91
Shift position
Displays the selected shift position ( P. 181)
Trip information display
Presents the driver with a variety of driving-related data ( P. 91)
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892. Instrument cluster
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Instrument cluster
Vehicles with multi-information display
Tachometer
Displays the engine speed in revolutions per minute
Engine coolant temperature gauge
Displays the engine coolant temperature
Fuel gauge
Displays the quantity of fuel remaining in the tank
Speedometer
Displays the vehicle speed
Vo l t m e t e r
Displays the charge state
“ODO/TRIP” and instrument panel light control button
P. 90, 93
Multi-information display
Presents the driver with a variety of driving-related data (P. 93)
Engine oil pressure gauge
Displays the engine oil pressure
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902. Instrument cluster
The brightness of the instrument panel lights can be adjusted by turn-
ing the “TRIP/INFO” button (vehicle s without multi-information dis-
play) or “ODO/TRIP” button (vehicle s with multi-information display).
Darker
Brighter
■ The meters and display illuminate when
The engine switch is in the “ON” position.
Instrument panel light control
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NOTICE
■To prevent damage to the engine and its components
● Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 496)

1724-1. Before driving
●Avoid sudden braking as you may skid, resulting in the trailer jack-
knifing and a loss of vehicle contro l. This is especially true on wet or
slippery surfaces.
● Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before making
a turn.
● Note that when making a turn, the trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a wider than normal turning radius.
● Slow down before making a turn, in crosswinds, on wet or slippery
surfaces, etc.
Increasing vehicle speed can destabilize the trailer.
● Take care when passing other vehicles. Passing requires consider-
able distance. After passing a vehicle, do not forget the length of
your trailer, and be sure you hav e plenty of room before changing
lanes.
● To maintain engine braking effici ency and charging system perfor-
mance when using engine braking, do not use the transmission in
D.
Transmission shift range position must be in 4 in the S mode.
● Instability happens more frequently when descending steep or long
downhill grades. Before descending, slow down and downshift. Do
not make sudden downshifts while descending steep or long down-
hill grades.
● Avoid holding the brake pedal down too long or applying the brakes
too frequently. This could cause th e brakes to overheat and result in
reduced braking efficiency.
● Due to the added load of the trailer, your vehicle’s engine may over-
heat on hot days (at temperatures over 85°F [30°C]) when driving
up a long or steep grade. If t he engine coolant temperature gauge
indicates overheating, immediately turn off the air conditioning (if in
use), pull your vehicle off the road and stop in a safe spot.
(  P. 496)

4117-3. Do-it-yourself maintenance
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Maintenance and care
■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.
CAUTION
■When the engine is hot
Do not remove the radiator cap.( P. 496)
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.

4628-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher
than normal.
● Voltmeter continually points higher or lower than normal
(if equipped)
● Engine oil pressure gauge continually points lower than normal
(if equipped)
● Vehicles without multi-information display:
Automatic transmission fluid temperature warning light comes on
Vehicles with multi-information display:
Automatic transmission fluid temperature warning message is dis-
played
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine misses, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4728-2. Steps to take in an emergency
If a warning message is displayed (vehicles
with multi-information display)
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the multi-
information display.
Multi-information display
If any of the warning light comes on again after the following actions
have been performed, contact your Toyota dealer.
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
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Warning message and warning buzzer list
Warning messageDetails/Actions
Indicates that the engine coolant temperature
is too high A buzzer also sounds.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates a malfunction in the automatic
transmission system A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
(If equipped)
Indicates a malfunction in the intuitive park-
ing assist
The malfunctioning assist-sensor is flashing.
 Have the vehicle inspected by your Toyota
dealer immediately.

4968-2. Steps to take in an emergency
If your vehicle overheats
●The needle of the engine coolant temperature gauge ( P. 8 8 )
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle sp eed does not increase.)
● “ENGINE COOLANT OVERTEMP” is shown on the multi-informa-
tion display. (vehicles with multi-information display)
● Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning
system, 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 sufficient ly, inspect the
hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer.
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
The following may indicate that your vehicle is overheating:
Correction procedures
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