2009 TOYOTA YARIS SEDAN overheating

103
2-1. Driving procedures
2
When driving
CAUTION
n
When taking a nap in the vehicle
Always turn the engine off. Otherwise, you may accidentally move the shift
lever or depress the accelerator pedal, which could cause an accident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicle, leadin\
g to
death or a serious health hazard.
n When braking the vehicle
lWhen the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one
side of the vehicle to brake differently than the other side. Also the parking
brake may not securely hold the vehicle.
l If the power brake assist function does not operate, do not follow other
vehicles closely and avoid downhills or sharp turns that require braking.
In this case, braking is still possible, but it will require more force on the
pedal than usual. Braking distance may also increase.
l Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
l The brake system consists of 2 individual hydraulic systems: If one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and braking distance
becomes longer.
Do not drive your vehicle with only a single brake system. Have your
brakes fixed immediately.

115
2-1. Driving procedures
2
When driving
NOTICE
n
Before driving
Fully release the parking brake.
Driving the vehicle with the parking brake set will lead to brake components
overheating, which may affect braking performance and increase brake
wear.
lParking brake engaged warning buzzer ( →P. 293)

121
2-2. Instrument cluster
2
When driving
Instrument panel light control
The brightness of the instrument panel lights can be adjusted.
Brighter
Darker
With the dial turned fully up, the
intensity of the instrument panel
lights will not be reduced even
when the tail lights/headlights are
turned on.
NOTICE
nTo prevent damage to the engine and its components
lDo not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
l 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. 321)

135
2-4. Using other driving systems
2
When driving
Driving assist systems
nSounds and vibrations caused by the ABS
lA sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indi-
cate that a malfunction has occurred in this system.
l Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
n EPS operation sound
When the steering wheel operates, a motor sound (whirring sound) may be
heard.
This does not indicate a malfunction.
n Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The
steering wheel may feel heavy as a result. Should this occur, refrain from
excessive steering input or stop the vehicle and turn the engine off. The sys-
tem should return to normal within 10 minutes.
To help enhance driving safety a nd performance, the following sys-
tems operate automatically in res ponse to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavi ly when operating the vehicle.
nABS (Anti-lock Brake System) (if equipped)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
nEPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.

151
2-5. Driving information
2
When driving
l
In order to maintain engine braking efficiency, do not use the trans-
mission in D (automatic transmiss ion) or 5 (manual transmission).
l Due to the added load of the trailer, your vehicle’s engine may
overheat on hot days (at temperatures over 85°F [30°C]) when
driving up a long or steep grade. If the engine coolant temperature
gauge indicates overheating, immedi ately turn off the air condition-
ing (if in use), pull your vehicle off the road and stop in a safe spot.
( → P. 321)
l Always place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the parking brake firmly, and put the
transmission in P (automatic transmission) or in 1 or R (manual
transmission). Avoid parking on a slope, but if unavoidable, do so
only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in pl ace, 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.
l 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 pressed.
Shift into a forward gear. If reversing, shift into R.
Release the parking brake (also brake pedal on vehicles with
an automatic transmission), and slowly pull or back away from
the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.

294 5-2. Steps to take in an emergency
Stop the vehicle immediately.The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
*: The light may come on when the oil level is extremely low. It is not designed to indicate low oil level, and the oil level must be checked using the engine
oil level dipstick.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging sys-
tem.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low*.
High engine coolant temperature warning light Indicate a engine is almost overheating.( →P. 321)
Warning lightWarning light/Details
(except Canada)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-tem; or
• Emission control system.

5
When trouble arises
323
5-2. Steps to take in an emergency
n
Overheating
If you observe the following, your vehicle may be overheating.
lThe high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
l Steam is coming from under the hood.
CAUTION
nTo prevent an accident or injury when inspecting under the hood of
your vehicle
lIf 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.
l Keep hands and clothing away from the fan and other belts while the
engine is running.
l Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
nWhen adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.

365
Alphabetical index
If the warning buzzer
sounds ............................... 293
If the warning light turns on .. 293
If you have a flat tire ............ 303
If you lose your keys............. 317
If you think something is wrong ................................. 289
If the vehicle becomes
stuck................................... 324
If your vehicle needs to be towed ................................. 283
If your vehicle overheats ...... 321
Engine Compartment........................ 228
Engine switch ....................... 106
Hood ..................................... 225
How to start the engine ........ 106
Identification number ............ 330
If the engine will not start...... 314
Ignition switch ....................... 106
Immobilizer system................. 58
Overheating .......................... 321
Specifications ....................... 331
Warning light ........................ 294
Engine coolant Capacity ............................... 333
Checking .............................. 234
Indicator................................ 122
Preparing and checking
before winter ...................... 141
Type ..................................... 333
Warning light ........................ 294
Engine immobilizer system ...... 58
Engine oil Capacity ............................... 332
Checking .............................. 229
Grade ................................... 332
Initializing the maintenance
data .................................... 232
Preparing and checking before winter ...................... 141
Warning light ........................ 294
Engine switch .......................... 106 Engine oil maintenance
data .........................................232
EPS EPS .......................................135
Warning light .........................294
Event data recorder .................291
Floor mat...................................207
Fluid Automatic transmission .........334
Brake .....................................235
Clutch ....................................335
Warning light .................293, 296
Washer ..................................240
Fog lights Indicator ................................128
Replacing light bulbs .............270
Switch....................................128
Wattage .................................337
Front fog lights Indicator ................................128
Replacing light bulbs .............270
Switch....................................128
Wattage .................................337
Front passenger's seat belt
reminder light.........................296
Front seats Adjustment ..............................34
Front side marker lights Replacing light bulbs .............270
Switch....................................126
Wattage .................................337
Front turn signal lights Indicator ................................113
Lever .....................................113
Replacing light bulbs .............270
Switch....................................113
Wattage .................................337
Fuel Capacity ................................331
Fuel pump shut off system ....290
Gas station information .........376
Gauge ...................................117
F