warning lights TOYOTA PRIUS PLUS 2017 User Guide

1072. Instrument cluster
2
Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
*1
(Red)
Brake system warning
light (→P. 387)*1, 2
(If equipped)
PCS warning light
(→ P. 389)
*1
(Yellow)
Brake system warning
light ( →P. 387)*1Slip indicator light
(→ P. 389)
*1Charging system
warning light ( →P. 387)*1High coolant
temperature warning
light ( →P. 391)
*1
(If equipped)
Low engine oil pressure
warning light ( →P. 388)*1
(If equipped)
Parking lock system
warning light ( →P. 389)
*1
(If equipped)
Hybrid system warning
light ( →P. 388)
(If equipped)
Parking lock
system warning
message
(→ P. 390)
*1Malfunction indicator
lamp ( →P. 388)
(If equipped)
Hybrid battery indicator
light ( →P. 390)
*1SRS warning light
(→ P. 388)*1
(If equipped)
LED headlight warning
light ( →P. 390)
*1ABS warning light
(→ P. 388)*1Automatic headlight
leveling system warning
light ( →P. 391)
*1Electric power steering
system warning light
(→ P. 388)*1
(Flashes)
(If equipped)
P position request
indicator light ( →P. 390)

1082. Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
*1: These lights turn on when the power switch is turned to ON mode to indi-cate 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 turn off. Have the vehicle
inspected by any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
*2: The light flashes to indicate a malfunction.
*1
(If equipped)
Hybrid system overheat
warning light ( →P. 391) Rear passengers’ seat
belt reminder light
(
→ P. 392)
(Yellow)
(If equipped)
Cruise control indicator
(→ P. 391)
(Yellow)
(If equipped)
Smart entry & start
system warning light
(→ P. 397)
Open door warning light
( → P. 391)
*1
(If equipped)
Master warning light
(→ P. 392)
Low fuel level warning
light ( →P. 391)
*1Tire pressure warning
light ( →P. 392)
Driver’s and front
passenger’s seat belt
reminder light ( →P. 392)
*1
(If equipped)
Go to service warning
light ( →P. 393)

1102. Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
*1: These lights turn on when the power switch is turned to the ON mode toindicate 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 the lights do not turn on, or turn off. Have the vehicle inspected
by any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off.
*4: This light illuminates on the center panel. “PWR MODE” indicator
(
→ P. 255)
(Green)
(If equipped)
Smart entry & start
system indicator
(→ P. 207)
(Green)
Cruise control indicator
(→ P. 235, 239)
WARNING
■ 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 hybrid system, this could mean that these sys-
tems are not available to help protect you in an accident, which could result
in death or serious injury. Have the vehicle inspected by any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional immediately if this occurs.

1192. Instrument cluster
2
Instrument cluster
PRIUS +_OM_OM47B24E_(EE)■
Remaining hybrid battery (tract ion battery) charge display
The charge amount of the hybrid battery (traction battery) is automatically
controlled by the hybrid system. For this reason, even if electricity is recov-
ered via the regenerative braking, or el ectricity is generated via the gasoline
engine, the displayed hybrid battery (traction battery) charge amount may not
reach the highest level (level 8). However, this does not indicate a malfunc-
tion.
■ Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc.
■ Brightness of the instrument panel light
If the headlight switch is turned to ON while the surrounding area is dark, the
instrument cluster lights will dim.
■ When disconnecting and reconnect ing 12-volt battery terminals
The fuel consumption display and average vehicle speed will be reset.
NOTICE
■To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning
light comes on or flashes. In this case, immediately stop the vehicle in a
safe place, and check the engine after it has cooled completely. ( →P. 457)
■ The trip information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.

1883-4. Adjusting the steering wheel and mirrors
PRIUS +_OM_OM47B24E_(EE)
XAuto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of vehicles
behind, the reflected light is automatically reduced.
Changing automatic anti-glare
function mode
On/off
When the automatic anti-glare
function is in ON mode, the indica-
tor illuminates.
The function will set to ON mode
each time the power switch is
turned to ON mode.
Pressing the button turns the func-
tion to OFF mode. (The indicator
also turns off.)
■ To prevent sensor error (vehicles with auto anti-glare inside rear view
mirror)
Indicator
To ensure that the sensors operate prop-
erly, do not touch or cover them.
WARNING
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident,
resulting in death or serious injury.

2304-3. Operating the lights and wipers
PRIUS +_OM_OM47B24E_(EE)
WARNING
■ Caution regarding the use of windshield wipers in AUTO mode (vehi-
cles with rain-sensing windshield wipers)
The windshield wipers may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in AUTO mode. Take care that your fin-
gers etc. do not become caught in the windshield wipers.
■ Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
In this case, contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Do not try to clear it with a pin or other object. The nozzle will be damaged.
■ To prevent 12-volt battery discharge
Do not leave the wipers on longer than necessary when the hybrid system
is off.

2484-5. Using the driving support systems
PRIUS +_OM_OM47B24E_(EE)■
Automatic cancelation of vehicle -to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the fol-
lowing situations:
● Actual vehicle speed falls below approximately 40 km/h (25 mph).
● VSC is activated.
● The sensor cannot operate correctly because it is covered in some way.
● The windshield wipers are operating at high speed (when the wiper switch is
set to the AUTO mode or the high speed wiper operation position).
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
■ Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situ-
ations:
● Actual vehicle speed is more than approximately 16 km/h (10 mph) below
the set vehicle speed.
At this time, the memorized set speed is not retained.
● Actual vehicle speed falls below approximately 40 km/h (25 mph).
● VSC is activated.
■ Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-
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) is
canceled if an obstruction is detected. (Constant speed control mode can be
used.)
■ Warning lights, warning messages and buzzers for dynamic radar cruise
control
Warning lights, warning messages and buzzers are used to indicate a system
malfunction or to inform the driver of the need for caution while driving.
(→ P. 403)
Grille cover
Radar sensor
1
2

3666-3. Do-it-yourself maintenance
PRIUS +_OM_OM47B24E_(EE)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( →P. 367)
● If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
●Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
■ Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible.

3756-3. Do-it-yourself maintenance
PRIUS +_OM_OM47B24E_(EE)
6
Maintenance and care
WARNING
■ Replacing light bulbs
●Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of t he light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ To prevent damage or fire
●Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.

3877-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
If a war ning light tur ns on or a warning
buzzer sounds
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 occur, have the vehicle
inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
→ Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Continuing to drive the vehicle may be dangerous.
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.
Brake system warning light (yellow indicator) Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
→ Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Charging system warning light Indicates a malfunction in the vehicle’s charging system
→ Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.