2012 TOYOTA YARIS HATCHBACK ABS

386
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/C Air Conditioning
ABS Anti-Lock Brake System
ACC Accessory
AI-SHIFT Artificial Intelligence Shift Control ALR Automatic Locking Retractor
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking Retractor
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children LED Light Emitting Diode
M + S Mud + Snow
MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether OBD On Board Diagnostics
SRS Supplemental Restraint System TIN Tire Identification Number
TPMS Tire Pressure Warning System
TRAC Traction Control TWI Treadwear IndicatorsVIN Vehicle Identification Number
VSC Vehicle Stability Control

56 1-3. Adjustable components (seats, mirrors, steering wheel)
Stow the seat belt tabs in the
cover set in the roof as shown.
■ Extracting the belt
Remove the tabs from the cover.

139
2-2. Instrument cluster
2
When driving
CAUTION
■
If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the engine, this could mean that these systems are
not available to help protect you in an accident, which could result in death
or serious injury. Have the vehicle inspected by your Toyota dealer immedi-
ately if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in any of the
vehicle’s systems. ( →P. 305)
*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 and comeon to indicate a malfunction.
*3: The light flashes to indicate a malfunction.
(except
Canada)(Canada)(except
Canada)(Canada)
(except
Canada)(Canada)(if equipped)
(except
Canada)

(if equipped)(except
Canada)
*1*1*1*1*1*1*1*1
*1*1*1*1,2*3
*1*1

162
2-4. Using other driving systems
Driving assist systems
To help enhance driving safety and 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 h eavily when operating the vehicle.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface.
■Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation.
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces.
■TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads.
■EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel.

164 2-4. Using other driving systems
■Turning off both TRAC and VSC systems
To turn the TRAC and VSC sys-
tems off, press and hold the but-
ton for more than 3 seconds
while the vehicle is stopped.
The “TRAC OFF” indicator light
and VSC OFF indicator light will
come on.
Press the button again to turn the
systems back on.
■When the “TRAC OFF” indicator light comes on even if the VSC OFF
switch has not been pressed
TRAC system cannot be operated. Contact your Toyota dealer.
■ Sounds and vibrations caused by the ABS, brake assist, VSC and
TRAC
● A 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 any of these systems.
● 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.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
■ Reactivation of the TRAC/VSC systems after turning off the engine
Turning off the engine after turning off the TRAC/VSC systems will automati-
cally reactivate them.

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

166 2-4. Using other driving systems
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 ensure vehicle stability and driving force by automatically
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.

182 2-5. Driving information
●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 (vehicles with an automatic transmission) or in 1
or R (vehicles with a 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 bloc ks under both the vehicle and
trailer 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 P (vehicles with an automatic transmission) or 1 or R
(vehicles with a manual transmission) and turn off the engine.
● When restarting after parking on a slope:
With the transmission in P (vehi cles with an automatic trans-
mission) or the clutch pedal (vehicles with a manual transmis-
sion) depressed, start the e ngine. On vehicles with an
automatic transmission, be su re 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.