lights TOYOTA PRIUS V 2018 Repair Manual

PRIUS v_OM_OM47B78U_(U)
4657-3. Do-it-yourself maintenance
7
Maintenance and care
■License plate lightsOpen the back door and
remove the cover.
To prevent damage, cover the
tip of the screwdriver with a rag.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
When installing, reverse the steps listed.
1
2
ITO43P150
3
4

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PRIUS v_OM_OM47B78U_(U)
7-3. Do-it-yourself maintenance
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
●LED headlights
● Front side marker lights (LED headlights)
● Parking lights (LED headlights)
● Daytime running lights (LED headlights)
● Stop/tail lights
● Rear side marker lights
● High mounted stoplight
■LED lights
The LED headlights, front side marker lights, parking lights, daytime running
lights, stop lights, tail lights, rear side marker lights and high mounted stop-
light consist of a number of LEDs. If any of the LEDs burn out, take your vehi-
cle to your Toyota dealer to have the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:
●Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
P. 453

PRIUS v_OM_OM47B78U_(U)
4677-3. Do-it-yourself maintenance
7
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 af ter turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the 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.

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PRIUS v_OM_OM47B78U_(U)
8-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt bat-
tery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.

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PRIUS v_OM_OM47B78U_(U)
8-2. Steps to take in an emergency
If a warning light turns 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 your Toyota dealer.
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 your Toyota dealer. Continuing to drive the vehi-
cle 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 brake system; or
• The electronically controlled brake system
 Have the vehicle inspected by your Toyota dealer
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 your Toyota dealer.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Toyota dealer
immediately.

4808-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
LDA indicator (warning buzzer)Indicates that the LDA (Lane D eparture Alert with steering
control) system is not available temporarily or has
detected a malfunction when the warning light is illumi-
nated in yellow and a warning message is displayed on
the multi-information display.
 P. 226
High coolant temperature warning light
Changes from a flashing to a solid light when the engine
coolant temperature increases
 Immediately stop the vehicle in a safe place. ( P. 528)
(If equipped)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling
system
 Have the vehicle inspected by your Toyota dealer
immediately.
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 1.6 gal.
(6.0 L, 1.3 Imp.gal.) or less
 Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)
*3
Warns the driver and/or front passenger to fasten their
seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning
buzzer)
*4
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 487
Warning lightWarning light/Details/Actions

4848-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
WARNING
■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 extrem ely 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.
When steering wheel operations are heavier than usual, grip the steering
wheel firmly and operate it using more force than usual.
■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires.
If a tire is flat, change it with the spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

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PRIUS v_OM_OM47B78U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If a warning message is displayed
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
If any of the warning lights come on again after the following actions
have been performed, contact your Toyota dealer.
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
1
2

4938-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
8
When trouble arises
Warning messageDetails/Actions
The Automatic High Beam switch was pressed
with the low beam headlights turned on.
Turn the high beam headlights on before
pressing the Automatic High Beam switch.
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
brake system operation is stopped
Turn the VSC on. ( P. 255)
Indicates that the PCS (Pre-Collision System) is
temporarily unavailable
When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by your Toyota dealer.
Indicates that the PCS (Pre-Collision System) is
temporarily unavailable
 When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by your Toyota dealer.
Indicates that part of the PCS (Pre-Collision Sys-
tem) sensor is dirty, covered with ice, etc.
 Remove any dirt, ice, etc.
Hybrid battery (traction battery) inspection or
replacement time.
Have the hybrid battery (traction battery)
inspected by your Toyota dealer immedi-
ately.

4978-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
8
When trouble arises
Shift control system malfunction A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately. If not inspected, vehi-
cle systems may stop operating normally.
Shift control system communication malfunction
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
• The hybrid system may not be able to start.
• May not be switched to the P position. When parking, choose a level location and
apply the parking brake securely.
• The automatically P position selection func- tion ( P. 178) may not function. Before
turning the power switch off, securely press
the P position switch, and be sure to check
that the shift position is in P by verifying the
shift position or P position switch operation
indicator lights.
• The power switch may not be able to be
turned off. In this case, the power switch
may be turned off by applying the parking
brake.
(If equipped)
Indicates a malfunction in the LED headlight sys-
temA buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Warning messageDetails/Actions
(Turns on or
Flashes)