2015 TOYOTA COROLLA coolant temperature

732. Instrument cluster
2
Instrument cluster
COROLLA_TMMMS_TMMC_U (OM12F00U)
Warning lights inform the driver of malfunctions in the indicated vehi-
cle’s systems.
Warning lights
*1
(U.S.A.)
Brake system warning
light ( P. 491)*1
(U.S.A.)
ABS warning light
(P. 492)
*1
(Canada)
Brake system warning
light ( P. 491)*1
(Canada)
ABS warning light
(P. 492)
*1, 2Charging system warn-
ing light ( P. 491)*1Electric power steering
system warning light
(P. 492)
*1, 2
Low engine oil pressure
warning light ( P. 491)*2, 4
(Yellow)
Cruise control indicator
light ( P. 493)
*1
(U.S.A.)
Malfunction indicator
lamp ( P. 492)*1
Slip indicator ( P. 492)
*1
(Canada)
Malfunction indicator
lamp (P. 492)*2, 3
(Yellow)
Smart key system indi-
cator light ( P. 492)
*1, 2High engine coolant
temperature warning
light (P. 491)*2Open door warning light
(P. 493)
*1SRS warning light
(P. 492)Low fuel level warning
light ( P. 493)

782. Instrument cluster
COROLLA_TMMMS_TMMC_U (OM12F00U)
Engine coolant temperature
gauge
Displays the engine coolant tem-
perature.
Eco Driving Indicator Zone Dis-
play
* ( P. 9 0 )
Outside temperature display
(  P. 404)
Shift position and gear position indicator
* (  P. 172, 174, 176)
Trip information ( P. 7 9 )
*: Except vehicles with a manual transmission
When the tail lights are on, the br ightness of the instrument panel
lights can be adjusted. (On vehicles with an automatic light control
system, the instrument panel lights can be adjusted when the sur-
rounding area is dark and the tail lights are on.)
The brightness of the clock li ght can be adjusted regardless of
whether the tail lights are on or off.
Brighter
Darker
Drive monitor display
1
2
3
Instrument panel light control
4
5
1
2

812. Instrument cluster
2
Instrument cluster
COROLLA_TMMMS_TMMC_U (OM12F00U)
■The meters and display illuminate when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
■ When disconnecting and reco nnecting battery terminals
The following information data will be reset:
● Average fuel consumption
● Driving range
● Average vehicle speed
CAUTION
■The display at low temperatures
Allow the interior of the vehicle to warm up before using the display. At
extremely low temperatures, the display monitor may respond slowly, and
display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear
number appearing on the display. This lag could cause the driver to down-
shift again, causing rapid and excessive engine braking and possibly an
accident resulting in death or injury.
■ Cautions during setting up the display
As the engine needs to be running during setting up the display, ensure that
the vehicle is parked in a place with adequate ventilation. In a closed area
such as a garage, exhaust gases including harmful carbon monoxide (CO)
may collect and enter the vehicle. This may lead to death or a serious
health hazard.
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 high engine coolant temperature
warning light comes on. In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 536)

822. Instrument cluster
COROLLA_TMMMS_TMMC_U (OM12F00U)
Tachometer
Displays the engine speed in revolutions per minute.
Speedometer
Fuel gauge
Multi-information display
The multi-information display presents the driver with a variety of driving-
related data including the current outside air temperature.
Display change button
Switches the trip information.
Engine coolant temperature gauge
Displays the engine coolant temperature.
Gauges and meters (multi-information dis-
play)
The displayed content may differ depending on the type of
meter.
1
2
3
4
5
6

882. Instrument cluster
COROLLA_TMMMS_TMMC_U (OM12F00U)
CAUTION
■The display at low temperatures
Allow the interior of the vehicle to warm up before using the display. At
extremely low temperatures, the display monitor may respond slowly, and
display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear
number appearing on the display. This lag could cause the driver to down-
shift again, causing rapid and excessive engine braking and possibly an
accident resulting in death or injury.
■ Cautions during setting up the display
As the engine needs to be running during setting up the display, ensure that
the vehicle is parked in a place with adequate ventilation. In a closed area
such as a garage, exhaust gases including harmful carbon monoxide (CO)
may collect and enter the vehicle. This may lead to death or a serious
health hazard.
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
are in the red zone. In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 536)

4307-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
CAUTION
■When working near the electric cooling fan or radiator grille
Vehicles without a smart key system: Be sure the engine switch is off. With
the engine switch in the “ON” position, the electric cooling fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 442)
Vehicles with a smart key system: Be sure the engine switch is off. With the
engine switch in IGNITION ON mode, the electric cooling fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 442)
■ 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.

4407-3. Do-it-yourself maintenance
COROLLA_TMMMS_TMMC_U (OM12F00U)
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 536)
■ 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.
For the U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% cool- ant and 50% deionized water. (Minimum temperature: -31 F
[-35 C])
For Canada: “Toyota Super Long Life Coolant” is a mixture of 55% cool- ant and 45% deionized water. (Minimum temperature: -44 F
[-42 C])
For more details about engine coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, 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.
Engine coolant
1
2
3

4918-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12F00U)
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Charging system warning light*3
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light*3
Indicates that the engine oil pressure is too low.
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
and
High engine coolant temperature warning light*3
Indicates that the engine is almost overheating. ( P. 536)
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.