2012 TOYOTA COROLLA engine overheat

194 2-5. Driving information
●Due to the added load of the trailer, your vehicle’s engine may
overheat on hot days (at temper atures over 85°F [30°C]) when
driving up a long or steep grade. If the engine coolant temperature
gauge indicates overheating, immediately turn off the air condition-
ing (if in use), pull your vehicle off the road and stop in a safe spot.
(  P. 456)
● Always place wheel blocks under both the vehicle’s and the
trailer’s wheels when parking. Ap ply the parking brake firmly, and
put the transmission in P (automatic transmission) or in 1 or R
(manual transmission). Avoid park ing on a slope, but if unavoid-
able, do so only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blo cks under both the vehicle’s
and trailer’s wheels.
When the wheel blocks are in place, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into 1 or R (manual transmission) or P (automatic trans-
mission) and turn off the engine.
● When restarting after parking on a slope:
With the transmission in P (automatic transmission) or the
clutch pedal (manual transmission) depressed, start the
engine. On vehicles with an au tomatic transmission, be sure
to keep the brake pedal depressed.
Shift into a forward gear. If reversing, shift into R.
Release the parking brake (and also the brake pedal on vehi-
cles with an automatic transmission), and slowly pull or back
away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3
STEP 4

324
3-7. Other interior features
Cigarette lighter
■The cigarette lighter can be used when
Vehicles with smart key system
The “ENGINE START STOP” switch is in ACCESSORY or IGNITION ON
mode.
Vehicles without smart key system
The engine switch is in the “ACC” or “ON” position.
CAUTION
■ When not in use
Keep the lid closed.
Injuries may result in the event of an accident or sudden braking.
■ To avoid burns or fires
●Do not touch the metal parts of the cigarette lighter.
● Do not hold the cigarette lighter down. It could overheat and cause a fire.
● Do not insert anything other than the cigarette lighter into the outlet.\
Pull the lid to open, and push
the cigarette lighter down.
The cigarette lighter will pop up
when it is ready for use.
: If equipped

326
3-7. Other interior features
Seat heaters
■The seat heaters can be used when
Vehicles with smart key system
The “ENGINE START STOP” switch is in IGNITION ON mode.
Vehicles without smart key system
The engine switch is in the “ON” position.
CAUTION
■ Burns
●Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
Heats the driver’s seat
Heats the front passenger’s
seat
The indicator light is on while
the seat heater is operating.
Push the switch once again to
turn off the seat heater.
: If equipped

When trouble arises5
411
5-1. Essential informationEmergency flashers ......... 412
If your vehicle needs to be towed ........................ 413
If you think something is wrong ............................. 418
Fuel pump shut off system ........................... 419 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ....................... 420
If you have a flat tire......... 432
If the engine will not start ................................ 444
If the shift lever cannot be shifted from P............ 446
If you lose your keys ........ 447
If the electronic key does not operate properly....... 448
If the battery is discharged ..................... 450
If your vehicle overheats ....................... 456
If the vehicle becomes stuck .............................. 459
If your vehicle has to be stopped in an
emergency ..................... 461

5
When trouble arises
455
5-2. Steps to take in an emergency
NOTICE
■
To prevent damage to the vehicle
Do not pull- or push-start the vehicle, because the catalytic converter may
overheat and become a fire hazard.
■ When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fans
or any of the belts when connecting or disconnecting them.
■ When attaching the engine cover (1 .8 L 4-cylinder [2ZR-FE] engine)
Ensure that the rubber grommets remain attached to the engine cover. If the
grommet is attached to the bolts, transfer grommets to the engine cover.

456
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating: Stop the engine and call your Toyota dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.STEP 1
STEP 2
STEP 3
STEP 5 STEP 4

5
When trouble arises
457
5-2. Steps to take in an emergency
■
Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
●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, caus-
ing serious injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
(P. 471)
Have the vehicle chec ked at the nearest Toyota dealer as soon as
possible.
STEP 5

516 Alphabetical index
Child safetyAirbag precautions ..................93
Battery precautions ....... 365, 454
Child restraint system............ 103
Child-protectors .......................42
How your child should wear
the seat belt ..........................62
Installing child restraints ........ 107
Moon roof precautions ............76
Power window lock switch.......71
Power window precautions .....72
Removed key battery
precautions ......................... 388
Seat belt comfort guide ........... 59
Seat belt extender
precautions ...........................65
Seat belt precautions ..............64
Seat heater precautions ........ 326
Trunk precautions ...................49
Child-protectors .........................42
Cleaning
Exterior .................................. 334
Interior ................................... 336
Seat belts .............................. 337
Clock ......................................... 322
Compass ................................... 329
Condenser ................................ 361
Console box ............................. 312
Cooling system Engine overheating ............... 456
Cruise control........................... 169
Cup holder ................................ 314
Curtain shield airbags ...............86
Customizable features............. 491 Daytime running light
system .................................... 162
Defogger Rear window ......................... 219
Side mirror ............................ 219
Dimension ................................ 464
Dinghy towing ................... 201,202
Display Trip information ..................... 156
Do-it-yourself maintenance .... 345
Doors Door lock ..................... 25, 36, 41
Door windows ......................... 71
Side mirrors............................. 69
Driver's seat belt reminder light ......................................... 422
Driving
Break-in tips .......................... 123
Correct posture ....................... 84
Procedures............................ 120
Winter driving tips ................. 181D