2017 TOYOTA PRIUS PLUG-IN HYBRID repair

6348-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
If your vehicle needs to be towed
In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front wheels may be locked due
to the parking lock. Contact any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional or commercial
towing service.
● There is a malfunction in the shift control system. (P. 330, 656)
● There is a malfunction in the immobilizer system. (P. 7 5 )
● There is a malfunction in the smart entry & start system. (P. 678)
● The 12-volt battery is discharged. (P. 682)
The following may indicate a problem with your hybrid transmission.
Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional or commercial towing service
before towing.
● The hybrid system warning message is displayed and the vehicle
does not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle
towed by any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional or commercial towing
service, using a wheel-lift type truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
Situations when it is not possible to be towed by another vehicle
Situations when it is necessary to contact dealers before towing

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

6458-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
8
When trouble arises
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)*4
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 light (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. 650
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 648)
• Flat tire ( P. 658)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have the system checked by any
authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system ( P. 648)
 Have the system checked by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Warning lightWarning light/Details/Actions

6478-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
8
When trouble arises
*1: Brake system warning buzzer:
When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
*2: Low engine oil pressure warning buzzer:
A buzzer also sounds continuously for approximately 30 seconds at maxi-
mum in addition to the low engine oil pressure warning light when the
“READY” indicator is illuminated.
*3: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 5 km/h
[3 mph]).
*4: Seat belt warning buzzer:
The seat belt warning buzzer sounds to alert the driver, front passenger
and rear passengers that his or her seat belt is not fastened. The buzzer
sounds intermittently for 30 seconds after the vehicle reaches a speed of
20 km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 90 more seconds.
*5: This symbol is displayed on the multi-information display.
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empt y, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
as soon as possible.