2017 TOYOTA PRIUS PLUG-IN HYBRID light

6297-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
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 after 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.
● Do not replace the right-hand back-up light immediately after the vehicle
has been driven.
After the vehicle has been driven the exhaust pipe will be extremely hot,
and touching the exhaust pipe may result in burns.
● Use gloves and other protection to prevent injuries on vehicle parts.
There is the danger of being injured on the edges of parts.
■ 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.

631
8When trouble arises
PRIUS PHV_OM_OM47A89E_(EE)
8-1. Essential information
Emergency flashers ........... 632
If your vehicle has to
be stopped in an
emergency ....................... 633
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 634
If you think something is
wrong ............................... 640
If a warning light turns on
or a warning buzzer
sounds ............................. 641
If a warning message is
displayed ......................... 650
If you have a flat tire .......... 658
If the hybrid system will
not start............................ 676
If the electronic key does
not operate properly ........ 678
If the 12-volt battery is
discharged ....................... 682
If your vehicle
overheats ......................... 688
If the vehicle becomes
stuck ................................ 693

6328-1. Essential information
PRIUS PHV_OM_OM47A89E_(EE)
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” indicato r 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.

6408-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warning light flashes or comes on
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor
If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped pro-
fessional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

6418-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
8
When trouble arises
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 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.
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.

6428-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
Low engine oil pressure warning light
(warning buzzer)*2
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
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 any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Red/yellow)
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Warning lightWarning light/Details/Actions

6438-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
8
When trouble arises
(Flashes)
PCS warning light
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Crash Safety sys-
tem)
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
When the warning light flashes (and a buzzer does not
sound):
Indicates that the PCS (Pre-Crash Safety system) is tem-
porarily unavailable, possibly due to either of the following:
• An area around the radar sensor or camera sensor
being dirty or covered with condensation, ice, stickers,
etc.
 Clear the dirt, condensation, ice, stickers, etc.
( P. 362)
• Radar sensor or camera sensor operational conditions
(such as temperature etc.) being not met
 Driving is possible in this case. The PCS (Pre-Crash
Safety system) will be enabled if the operational con-
ditions (such as temperature etc.) are met again.
When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS
(Pre-Crash Safety system) is disabled or both are dis-
abled.
 To enable the PCS, enable both the VSC system and
PCS. ( P. 372, 493)
Slip indicator light
Indicates a malfunction in:
• The VSC system;
• The TRC system; or
• The hill-start assist control system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
The light will flash when the ABS, VSC or TRC system is
operating.
Warning lightWarning light/Details/Actions

6448-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
High coolant temperature warning light
• When the light flashes:
Indicates that the engine coolant temperature is too high
The light changes from a flashing to a solid light when
the temperature further increases
 Immediately stop the vehicle in a safe place.
( P. 688)
• When the light comes on without flashing:
Indicates a malfunction in the exhaust heat recirculator
system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Flashes) (If equipped)
ICS OFF indicator
Indicates a malfunction in the Intelligent Clearance Sonar
function
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the Intelligent Clearance
Sonar function is turned off ( P. 445)
• The light will come on when the Intelligent Clearance
Sonar function is operating ( P. 449)
• The light will flash when the system cannot temporarily
be used ( P. 453)
Open door warning light (warning buzzer)*3
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 6.4 L
(1.7 gal., 1.4 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions