2014 TOYOTA PRIUS warning lights

224 2-2. Instrument cluster
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CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS airbag warning light
not come on when you start the hybrid system, 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 immediately if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in any of the
vehicle’s systems. ( P. 499)
*1: These lights turn on when the “POWER” switch is turned to ON
mode to indicate that a system check is being performed. They will
turn off after the hybrid system is on, 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 a malfunction.
(U.S.A.)(Canada)(U.S.A.)(Canada) (red)(yellow)(if equipped)
(U.S.A.)(Canada)(if equipped)(if equipped)
(if equipped)
(if equipped)
*1*1*1*1*1*1*1*1
*1*1*1*1*1, 2*1*2
*2*1*1
*2

283
2-4. Using other
driving systems
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When driving
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-t\
o-
vehicle distance control operates properly. (Some obstructions, such as
snow, ice and plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control (vehicle-to-vehicle distance control mode) will
be canceled if dirt is detected. (Constant speed control mode can be used).
■ Warning lights, messages and buzze rs for dynamic radar cruise con-
trol
Warning lights, warning messages and buzzers are used to indicate a sys-
tem malfunction or to inform the driver of the need for caution while driving.
Grille cover
Radar sensor

296 2-4. Using other driving systems
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●When the lane markers are yellow (These may be more difficult for the
system to recognize compared to white markers.)
● When the lane markers are broken, “Botts’ dots”, “Raised pavement
marker” or stones
● When lane markers are obscured or partially obscured by sand, dirt, etc.
● When there are shadows on the road running parallel with lane markers,
or if a shadow covers the lane markers
● When driving on a particularly bright road surface, such as concrete
● When driving on a road surface that is bright due to reflected light
● When driving in a location where the light level changes rapidly, such as
the entrance to or exit from a tunnel
● When sunlight or the headlights of oncoming vehicles are shining directly
into the camera lens
● When driving on roads that are branching or merging
● When driving on a road surface that is wet due to rain, previous rainfall,
standing water, etc.
● When the vehicle experiences strong up-and-down motion such as when
driving on an extremely rough road or on a seam in the pavement
● When headlight brightness at nighttime is reduced due to dirt on the
lenses, or when the headlights are misaligned
● When driving with a strong crosswind
● When driving on winding roads or roads that are uneven
● When driving on rough or unpaved roads
■ When changing the tires
Depending on the tires used, sufficient performance may not be maintain-
able.
■ Warning messages for LKA
Warning messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (P. 516, 520)

311
2-4. Using other
driving systems
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When driving
■Obstacles not detected
The sensor cannot detect plastic obstacles such as traffic cones. There may
also be occasions when the sensor cannot detect pedestrians, animals,
bicycles, motorcycles, trees, or snowdrifts.
■ Situations in which the pre-collis ion system does not function properly
The system may not function effectively in situations such as the following:
● On roads with sharp bends or uneven surfaces
● If a vehicle suddenly moves in front of your vehicle, such as at an inter-
section
● If a vehicle suddenly cuts in front of your vehicle, such as when overtak-
ing
● In inclement weather such as heavy rain, fog, snow or sand storms
● When your vehicle is skidding with the VSC system off
● When an extreme change in vehicle height occurs
● When the axis of the radar is out of adjustment
■ Automatic cancelation of the pre-collision system
When a malfunction occurs due to sensor contamination, etc. that results in
the sensors being unable to detect obstacles, the pre-collision system will be
automatically disabled. In this case, the system will not activate even if there
is a collision possibility.
■ When there is a malfunction in the system, or if th e system is tempo-
rarily unusable
Warning lights and/or warning messages will turn on or flash. ( P. 502, 516)

469
4-3. Do-it-yourself maintenance
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Maintenance and care
FUSEAmpereCircuit
15 P FR DOOR 25A Power windows
16 D FR DOOR 25A Power windows
17 DOOR RR 25A Power windows
18 DOOR RL 25A Power windows
19 S/ROOF 30A Moon roof
20 ECU-IG NO.1 10A Electric cooling fans, multiplex
communication system, vehicle
proximity notification system
21 ECU-IG NO.2 10A Driver support system, Pre-Colli-
sion System, LKA system, inside
rear view mirror, garage door
opener, yaw rate & G sensor,
brake system, electric power
steering, navigation system, moon
roof, tire pressure warning system,
seat belt pretensioners, audio sys-
tem, emergency flashers, turn sig-
nal lights, windshield wipers,
headlight cleaner
22 GAUGE 10A Headlight leveling system, gauges
and meters, emergency flashers,
turn signal lights
23 A/C 10A Air conditioning system, Solar
Ventilation System, Remote Air
Conditioning System
24 WASHER 15A Windshield washer

5
When trouble arises
499
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5-2. Steps to take in an emergency
If a war ning light tur ns on or a war ning buzzer sounds
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then goes
off, this does not necessarily indicate a malfunction in the system.
However, if this continues to o ccur, have the vehicle inspected by
your Toyota dealer.

5
When trouble arises
509
5-2. Steps to take in an emergency
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■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1
minute when the “POWER” switch
is turned to ON mode, have it
checked by your Toyota dealer.
■ Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 596) However, Toyota recommends that the
seat belt reminder buzzer be operational to alert the driver and front passen-
ger when seat belts are not fastened.
CAUTION
■ If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Toyota
dealer. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ When the electric power steerin g system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.

632 Alphabetical index
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Steering wheelAdjustment ............................ 119
Audio switches
*
Storage feature......................... 361
StuckIf your vehicle becomes
stuck ................................... 561
Sun visors................................. 368
Switch Audio remote control switches
*
Cruise control switch ............. 268
Driving mode selectswitch .................................. 206
Eco drive mode switch .......... 206
Emergency flasher switch ..... 490
EV drive mode switch............ 201
Fog light switch ..................... 258
Hazard light switch ................490
Headlight cleaner switch ....... 267
Ignition switch........................ 194
Light switches........................ 252
Power door lock switch ...........89
“POWER” switch ................... 194
Power window switch ............ 126
Pre-collision braking off switch .................................. 308
Talk switch
*
Telephone switch*
Ventilation switch .................. 343
Window lock switch ............... 126
Wipers and washer switch .... 260 Tail lights
Switch ................................... 252
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system ............... 138
Tire inflation pressure ............. 453
Tire information Glossary ................................ 588
Size ....................................... 584
Tire identification number...... 583
Uniform Tire Quality
Grading ............................... 586
Tires Chains ................................... 323
Checking ............................... 443
If you have a flat tire.............. 530
Inflation pressure .................. 453
Inflation pressure sensor....... 444
Information ............................ 581
Replacing .............................. 530
Rotating tires ......................... 443
Size ....................................... 575
Snow tires ............................. 321
Spare tire .............................. 530
Tire pressure warning
system ........................ 443, 505
T