
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

6528-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A89E_(EE)
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along with a message
shown on the multi-information display.
● “Antilock Brake System Malfunction Visit Your Dealer”:
The ABS warning light comes on. ( P. 642)
● “Braking Power Low Visit Your Dealer”:
The brake system warning light (yellow) will come on. ( P. 641)
● Indicates that a door is not fully closed while the vehicle is stopped.:
The Open door warning light comes on. ( P. 6 4 4 )
■ If “Visit Your Dealer” is shown
The system or part shown on the multi- information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
■ If a message about an operation is shown
● If a message about an operation of the accelerator pedal or brake pedal is
shown
A warning message about an operation of the brake pedal may be shown
while the driving assist systems such as PCS (Pre-Crash Safety system) or
the dynamic radar cruise control with full-speed range is operating. If a
warning message is shown, be sure to decelerate the vehicle or follow an
instruction shown on the multi-information display.
● A warning message is shown when Drive-Start Control, Brake Override Sys-
tem or Intelligent Clearance Sonar (if equipped) operates ( P. 314, 314,
449). Follow the instructions on the multi-information display.
● If a message about an operation of the power switch is shown
An instruction for operation of the power switch is shown when the incorrect
procedure for starting the hybrid system is performed or the power switch is
operated incorrectly. Follow the instructions shown on the multi-information
display to operate the power switch again.
● If a message about a shift operation is shown
To prevent the shift position from being selected incorrectly or the vehicle
from moving unexpectedly, the shift position may be changed automatically
( P. 335) or shift operation may be required. In this case, change the shift
position following the instructions on the multi-information display.
● If a message or image about an open/close state of a part or replenishment
of a consumable is shown
Confirm the part indicated by the multi-information display or a warning light,
and then perform the coping method such as closing the open door or
replenishing a consumable.

724Alphabetical index
PRIUS PHV_OM_OM47A89E_(EE)
Alphabetical index
A/C............................................. 504
Air conditioning filter.............. 609
Automatic air conditioning
system ................................ 504
Blower customization ............ 508
Eco score (A/C score) ........... 239
Humidity sensor .................... 513
Remote Air Conditioning
System................................ 516
S-FLOW mode ...................... 506
ABS (Anti-lock Brake
System) .................................. 491
Function ................................ 491
Warning light ......................... 642
AHS (Adaptive High-beam
System) .................................. 345
Air conditioning filter .............. 609
Air conditioning system .......... 504
Air conditioning filter.............. 609
Automatic air conditioning
system ................................ 504
Blower customization ............ 508
Eco score (A/C score) ........... 239
Humidity sensor .................... 513
Remote Air Conditioning
System................................ 516
S-FLOW mode ...................... 506
Air intake vent .......................... 102
Airbag manual on-off
system ...................................... 51Airbags ....................................... 39
Airbag manual on-off
system .................................. 51
Airbag operating conditions .... 45
Airbag precautions for your
child ...................................... 41
Airbag warning light .............. 642
Correct driving posture ........... 32
Curtain shield airbag
operating conditions ............. 45
Curtain shield airbag
precautions........................... 43
General airbag precautions .... 41
Locations of airbags................ 39
Modification and disposal of
airbags.................................. 44
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 42
Side and curtain shield
airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 43
SRS airbags............................ 39
Alarm .......................................... 81
Alarm ...................................... 81
Intrusion sensor ...................... 84
Warning buzzer..................... 641
Anchor brackets ........................ 73
A

725Alphabetical index
PRIUS PHV_OM_OM47A89E_(EE)
Antenna (smart entry &
start system) .......................... 279
Anti-lock brake system
(ABS) ...................................... 491
Function ................................ 491
Warning light ......................... 642
Approach warning ................... 406
Assist grips .............................. 543
Audio input
*
Audio system*
Automatic air conditioning
system .................................... 504
Air conditioning filter.............. 609
Automatic air conditioning
system ................................ 504
Blower customization ............ 508
Eco score (A/C score) ........... 239
Humidity sensor .................... 513
Remote Air Conditioning
System................................ 516
S-FLOW mode ...................... 506
Automatic headlight leveling
system .................................... 343
Automatic light control
system .................................... 342
AUX port
*
Auxiliary boxes ........................ 529Back door ................................. 274
Back-up lights .......................... 623
Replacing light bulbs............. 624
Wattage ................................ 705
Battery (12-volt battery) .......... 573
Battery checking ................... 573
Exchanging ........................... 685
If the 12-volt battery is
discharged .......................... 682
Preparing and checking
before winter....................... 498
Warning light ......................... 641
Battery (traction battery)......... 101
Air intake vent ....................... 102
Charging ............................... 113
Location ................................ 101
Specification ......................... 699
Status indicator ..................... 115
Blind Spot Monitor (BSM) ....... 417
Blind Spot Monitor function ... 423
Rear Crossing Traffic Alert
function ............................... 427
Bluetooth
®*
Bottle holders .......................... 528
Brake
Fluid ...................................... 704
Parking brake........................ 340
Regenerative braking.............. 97
Warning light ......................... 641
Brake assist ............................. 491
Brake Override System ........... 314
Break-in tips ............................. 315
Brightness control
Instrument cluster light
control................................. 192
BSM (Blind Spot Monitor) ....... 417
Blind Spot Monitor function ... 423
Rear Crossing Traffic Alert
function ............................... 427
B
*: Refer to the “Navigation system Owner’s manual”.

740Alphabetical index
PRIUS PHV_OM_OM47A89E_(EE)
Warning lights .......................... 200
ABS ....................................... 642
Brake Override System ......... 646
Brake system ........................ 641
Charging system ................... 641
Drive-Start Control ................ 646
Driver’s seat belt reminder .... 645
Electronic engine control
system ................................ 642
Electric power steering.......... 642
Front passenger’s seat belt
reminder ............................. 645
High coolant temperature...... 644
ICS OFF indicator ................. 644
Intelligent Clearance
Sonar .................................. 646
LDA (Lane Departure Alert
with steering control)
system ................................ 646
Low engine oil pressure ........ 642
Low fuel level ........................ 644
Malfunction indicator lamp .... 642
Master warning light .............. 645
Open door ............................. 644
PCS....................................... 643
Rear passengers’ seat belt
reminder ............................. 645
Seat belt reminder light ......... 645
Slip indicator ......................... 643
SRS....................................... 642
Tire pressure ......................... 645Warning messages .................. 650
Warning reflector storage
space ...................................... 532
Washer...................................... 352
Checking ............................... 578
Preparing and checking
before winter....................... 498
Switch ................................... 352
Washing and waxing ............... 546
Water-repellent coating........... 547
Wheels ...................................... 594
Replacing wheels.................. 597
Size ....................................... 704
Window glasses....................... 307
Window lock switch ................ 307
Windows ................................... 307
Power windows ..................... 307
Rear window defogger .......... 509
Washer ................................. 352
Windshield wipers ................... 352
Handling the wiper arms ....... 550
Rain-sensing windshield
wipers ................................. 352
Replacing the wiper rubber ... 613
Winter driving tips ................... 498
Wiper rubber replacement ...... 613
Wireless charger...................... 537
Wireless remote control
key .......................................... 264
Battery-Saving Function ....... 281
Locking/Unlocking................. 264
Remote Air Conditioning
System ............................... 516
Replacing the battery ............ 616