2012 TOYOTA YARIS overheating

121
2-1. Driving procedures
2
When driving
CAUTION
■
When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you may accidentally move the shift
lever or depress the accelerator pedal, this 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.
■ When braking
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
● If the power brake assist function does not operate, do not follow other
vehicles closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
● 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.
● 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 the braking distance will
increase.
If this happens, do not continue to drive the vehicle. Have your brakes
fixed immediately.

131
2-1. Driving procedures
2
When driving
Parking brake
■Usage in winter time
See “Winter driving tips” for parking brake usage in winter time. (P. 172)
NOTICE
■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.
To set the parking brake,
fully pull the parking brake
lever while depressing the
brake pedal.
To release the parking
brake, slightly raise the
lever and lower it com-
pletely while pressing the
button.
except
CanadaCanada

135
2-2. Instrument cluster
2
When driving
Instrument panel light control
The brightness of the instrument pa nel lights can be adjusted by turn-
ing the dial.
Brighter
Darker
■The meters and display operate when
The engine switch is in the “ON” position.
NOTICE
■To prevent damage to the engine and its components
●On vehicles with a tachometer, 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 flashes or comes on. In this case, immediately stop the vehi-
cle in a safe place, and check the engine after it has cooled completely.
(
P. 334)

165
2-4. Using other
driving systems
2
When driving
■Reactivation of the TRAC system linked to vehicle speed
When only the TRAC system is turned off, the TRAC system will turn on
when vehicle speed increases. However, when both TRAC and VSC sys-
tems are turned off, the systems will not turn on even when vehicle speed
increases.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system 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 EPS system should return to normal within 10 minutes.
■ If the slip indicator comes on...
It may indicate a malfunction in the driving assist systems. Contact your
Toyota dealer.
CAUTION
■The ABS does not opera te effectively when
● Tires with inadequate gripping ability are used (such as excessively worn
tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on the wet or slick
roads.
■ Stopping distance when the ABS is operating may exceed than of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or roads with uneven surfaces

181
2-5. Driving information
2
When driving
●
Crosswinds and rough roads will adversely affect handling of your
vehicle and trailer, causing sway . Periodically check the rear to
prepare for being passed by large trucks or buses, which may
cause your vehicle and trailer to sway. If swaying occurs, firmly grip
the steering wheel, reduce speed immediately but gradually, and
steer straight ahead. Never increase speed. If you make no
extreme correction with the stee ring or brakes, your vehicle and
trailer will stabilize.
● 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 efficiency and charging system perfor-
mance when using engine braking, do not use the transmission in
D (vehicles with an automatic transmission) or 5 (vehicles with a
manual transmission).
● 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 high engine coolant temper-
ature warning light flashes or co mes on overheating, immediately
turn off the air conditioning (if in use), pull your vehicle off the road
and stop in a safe place. ( P. 334)

306 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.
Have the vehicle inspected immediately.Failure 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.
(Flashes or comes on) High engine coolant temperature warning light
Indicates that the engine is almost overheating.
(P. 334)
Warning lightWarning light/Details
(except Canada) (Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system.

5
When trouble arises
335
5-2. Steps to take in an emergency
■
Overheating
If you observe the following, your vehicle may be overheating:
●The high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
● Steam comes out 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 injuries such as burns.
● Keep hands and clothing away from the fan and drive belt while the engine
is running.
● 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.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable. ( P. 347)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.

389
Alphabetical index
Electric power steering
Electric power steering ......... 162
Warning light ........................ 306
Emergency flashers Switch ................................... 296
Emergency, in case of If the engine will not start...... 327
If the shift lever cannot be shifted from P ..................... 328
If the vehicle battery is discharged ......................... 330
If the warning buzzer sounds ............................... 305
If the warning light turns
on ....................................... 305
If you have a flat tire ............ 315
If you lose your keys............. 329
If you think something is wrong ................................. 303
If the vehicle becomes
stuck................................... 337
If your vehicle has to be stopped in an emergency... 339
If your vehicle needs to be towed ................................. 297
If your vehicle overheats ...... 334
Engine Compartment........................ 241
Engine switch ....................... 124
Hood ..................................... 236
How to start the engine ........ 124
Identification number ............ 344
If the engine will not start...... 327
Ignition switch ....................... 124
Immobilizer system................. 72
Overheating .......................... 334
Specifications ....................... 345
Warning light ........................ 306 Engine coolant
Capacity ................................347
Checking ...............................246
Indicator ................................136
Preparing and checking
before winter .......................172
Type ......................................347
Warning light .........................306
Engine immobilizer system.......72
Engine oil Capacity ................................346
Checking ...............................242
Grade ....................................346
Initializing the maintenance
data .....................................227
Preparing and checking before winter .......................172
Warning light .................306, 307
Engine switch ...........................124
EPS EPS .......................................162
Warning light .........................306
Event data recorder ...................22
Floor mat...................................214
Fluid
Automatic transmission .........349
Brake .............................248, 350
Clutch ....................................349
Warning light .................305, 307
Washer ..................................252
Fog lights Indicator ................................136
Replacing light bulbs .............286
Switch....................................148
Wattage .................................352
Front passenger’s seat belt
reminder light.........................307
Front seats Adjustment ..............................43E
F