Engine control TOYOTA YARIS 2014 3.G User Guide

117
2-1. Driving procedures
2
When driving
CAUTION
●
Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle\
control.
● Do not shift the shift lever to D (vehicles with an automatic transmission) or
1 (vehicles with a manual transmission) while the vehicle is moving back-
ward.
Doing so can damage the transmission and may result in a loss of vehicle\
control.
● Moving the shift lever to N while the vehicle is moving will disengage the
engine from the transmission. Engine braking is not available when N is
selected.
● During normal driving, do not turn off the engine. Turning the engine off
while driving will not cause loss of steering or braking control, but the
power assist to these systems will be lost. This will make it more difficult to
steer and brake, so you should pull over and stop the vehicle as soon as it
is safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 339
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 127,129)
● When stopped on an inclined surface, use the brake pedal and parking
brake to prevent the vehicle from rolling backward or forward and causing
an accident.
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents,
resulting in death or serious injury.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle, as this may result in death or serious injury.

118 2-1. Driving procedures
CAUTION
●Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.
■ When driving on slippery road surfaces
●Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle, resulting in an accident.
● Sudden changes in engine speed, such as engine braking caused by up-
shifting and down-shifting, may cause the vehicle to skid, resulting in an
accident.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected, resulting in
an accident.
■ When shifting the shift lever (vehic les with an automatic transmission)
Be careful not to shift the shift lever with the accelerator pedal depressed.
Shifting the shift lever to a gear other than P or N may lead to unexpected
rapid acceleration of the vehicle that may cause an accident and result in
death or serious injury.
■ If you hear a squealing or scrapin g noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.

123
2-1. Driving procedures
2
When driving
NOTICE
■
Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.
● When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
■ If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
● The vehicle will make abnormal sounds or vibrations.
● The vehicle will lean abnormally.
Information on what to do in case of a flat tire. ( P. 315)
■ When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
●Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:
● Brake function
● Changes in quantity and quality of engine oil, and transmission fluid, etc.
● Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.

128 2-1. Driving procedures
■Downshift restriction
The maximum allowable speeds are as follows.
■ AI-SHIFT
AI-SHIFT automatically selects the suitable gear according to driver perfor-
mance and driving conditions.
AI-SHIFT automatically operates when the shift lever is in the D position.
When driving downhill, there may be cases where the vehicle shifts down
automatically to obtain engine braking. As a result of the downshifting, the
engine speed may increase.
■ When driving with the cruise control system (if equipped)
Engine braking will not occur when downshifting from D. ( P. 159)
■ If the shift lever cannot be shifted from P
P. 328
CAUTION
■When driving on slippery road surfaces
Do not accelerate or shift gears suddenly.
Sudden changes in engine braking may cause the vehicle to spin or skid,
resulting in an accident.
DownshiftingMaximum speed mph (km/h)
3 2 53 (85)
2 L 25 (40)

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)

138 2-2. Instrument cluster
■Indicators
The indicators inform the driver of the operating state of the
vehicle’s various systems.
*1: These lights turn on when the engine switch is turned to the “ON”
position to indicate that a system check is being performed. They
will turn off after the engine is started, or after a few seconds. There
may be a malfunction in a system if a light does not come on, or if
the lights do not turn off. Have the vehicle inspected by your Toyota
dealer.
*2: The light flashes to indicate that the system is operating.
Turn signal indicator
(P. 130)
(If equipped)
Cruise control indicator
( P. 159)
Headlight high beam
indicator ( P. 147)
(If equipped)
Cruise control “SET”
indicator ( P. 159)
(If equipped)
Front fog light indicator
(P. 149)*1,2
Slip indicator ( P. 164)
Low engine coolant
temperature indicator
Indicates the engine
coolant temperature is
cool.*1VSC OFF indicator
(P. 165)
*1“TRAC OFF” indicator
(P. 164)
(If equipped)
Engine immobilizer/
alarm system indicator
(P. 72, 74)*1“AIR BAG ON” indicator
( P. 92)
*1Eco Driving Indicator
Light ( P. 115)*1“AIR BAG OFF” indica-
tor (P. 92)
(Vehicles with an automatic transmission)
Shift position and shift
range indicator
(P. 127)
(Vehicles with an automatic transmission)

167
2-4. Using other
driving systems
2
When driving
CAUTION
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Be especially careful and drive the vehicle in conditions where stability and
power may be lost.
■ When the VSC is activated
The slip indicator flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC syst ems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. Do not turn the TRAC/VSC systems off unless necessary, as these are
the systems to help ensure vehicle stability and driving force by automati-
cally controlling braking and engine outputs.
■ Replacing tires
Observe the following precautions.
Failure to do so may cause the ABS, VSC and TRAC systems not to function
correctly.
●Make sure that all tires are of the specified size, brand, tread pattern and
total load capacity.
● Do not use tires of noticeably different wear level.
● Make sure that the tires are inflated to the recommended tire inflation
pressure level. ( P. 351)
Contact your Toyota dealer for further information when replacing tires or
wheels.
■ Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause a system to malfunction.

173
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropri-
ate to the prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tem-
peratures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific grav-
ity of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set
of tire chains for the front tires.
Ensure that all tires are the same size and brand and that their wear
level is not noticeably different with each other. Also make sure that
chains match the size of the tires.
■Before driving the vehicle
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is
frozen. Pour warm water over the frozen area to melt the ice.
Wipe away the water immediately to prevent it from freezing.
● To ensure proper operation of th e climate control system fan,
remove any snow that has accumulated on the air inlet vents
in front of the windshield.
● Remove any ice that has accumu lated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow
that may have accumulated in the wheel well or on the
brakes.

181
2-5. Driving information
2
When driving
Trailer towing tips
Your vehicle will handle differently w hen towing a trailer. In order to
avoid accident, death or serious in jury, keep the following in mind
when towing:
● Before starting out, check the trailer lights and the vehicle-trailer
connections. Recheck after driving a short distance.
● Practice turning, stopping and reve rsing with the trailer attached in
an area away from traffic until you become accustomed to the feel
of the vehicle.
● Reversing with a trailer attached is difficult and requires practice.
Grip the bottom of the steering wheel and move your hand to the
left to move the trailer to the left. Move your hand to the right to
move the trailer to the right. (Thi s is generally opposite to reversing
without a trailer attached.) Avoid sharp or prolonged turning. Have
someone guide you when reversing to reduce the risk of an acci-
dent.
● As stopping distance is increased when towing a trailer, vehicle-to-
vehicle distance should be increased. For each 10 mph (16 km/h)
of speed, allow at least o ne vehicle and trailer length.
● Avoid sudden braking as you may skid, resulting in jackknifing and
loss of control. This is especiall y true on wet or slippery surfaces.
● Avoid jerky starts or sudden acceleration. Vehicles with a manual
transmission, prevent excessive cl utch slippage by keeping engine
rpm low and not racing the engine. Always start out in first gear.
● Avoid jerky steering and sharp turns, and slow down before mak-
ing turn.
● Note that when making a turn, th e trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a larger than normal turning radius.

Maintenance and care4
221
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 222
Cleaning and protecting the vehicle interior.......... 225
4-2. Maintenance Maintenance requirements .................. 228
General maintenance....... 230
Emission inspection and maintenance (I/M)
programs........................ 234 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 235
Hood ................................ 238
Positioning a floor jack ..... 240
Engine compartment ........ 243
Tires ................................. 254
Tire inflation pressure ...... 262
Wheels ............................. 266
Air conditioning filter......... 269
Wireless remote control battery ............................ 271
Checking and replacing fuses .............................. 275
Light bulbs........................ 287