Page 761 of 784
761
PRIUS PRIME_OM_OM47A88U_(U)
Index
What to do if... (Troubleshooting) .................... 762
Alphabetical index ..................... 766
For information regarding the equipment listed below, refer to
the “NAVIGATION SYSTEM OWNER’S MANUAL”.
• Navigation system
• Audio/visual system
• Hands-free system (for cellular phone)
• Rear view monitor system
Page 762 of 784

762What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47A88U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. ( →P. 263)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact your Toyota dealer immediately. ( →P. 266)
●Is the electronic key battery weak or depleted? (→P. 627)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( →P. 326)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (→P. 281)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 270)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 763 of 784
763What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47A88U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(→P. 324)
●Is the shift position in P? ( →P. 331)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 279)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(→P. 691)
●Is the 12-volt battery discharged? ( →P. 694)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( →P. 300)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. ( →P. 326)
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically
Page 764 of 784
764What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47A88U_(U)
●The seat belt reminder light is flashing
Are the driver and all the passengers wearing the seat belts? (→P. 658)
●The parking brake indicator is on
Is the parking brake released? ( →P. 337)
Depending on the situation, other types of warning buzzer may also sound.
( →P. 653, 663)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( →P. 663)
●When a warning light turns on or a warning message is displayed, refer to \
P. 653, 663.
A warning buzzer sounds during driving
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
Page 765 of 784
765What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47A88U_(U)
●Stop the vehicle in a safe place and repair the flat tire temporarily with
the emergency tire puncture repair kit. (→P. 671)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or
snow. ( →P. 705)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 766 of 784

766Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Alphabetical index
A/C .................................... 488, 498Air conditioning eco
mode .......................... 490, 501
Air conditioning filter ............. 620
Automatic air conditioning system .... 488, 498
Eco score (A/C score)........... 228
Humidity sensor ............ 494, 505
Remote Air Conditioning System ............................... 509
S-FLOW mode .............. 489, 500
ABS (Anti-lock Brake System) .................................. 476 Function ................................ 476
Warning light ......................... 654
Air conditioning filter .............. 620
Air conditioning system ............................ 488, 498 Air conditioning eco mode .......................... 490, 501
Air conditioning filter ............. 620
Automatic air conditioning system .... 488, 498
Eco score (A/C score)........... 228
Humidity sensor ............ 494, 505
Remote Air Conditioning System ............................... 509
S-FLOW mode .............. 489, 500
Air intake vent ............................ 91 Airbags ....................................... 36
Airbag operating conditions .... 44
Airbag precautions for
your child .............................. 40
Airbag warning light .............. 654
Correct driving posture ........... 28
Curtain shield airbag operating conditions ............. 45
Curtain shield airbag precautions........................... 42
Front passenger occupant
classification syst em ............ 50
General airbag precautions .... 39
Locations of airbags ............... 36
Modification and disposal of airbags ............................. 43
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 41
Side and curtain shield airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 42
SRS airbag instructions for Canadian owners ............... 749
SRS airbags ........................... 36
Anchor brackets ........................ 73
Antenna (smart key system) .................................. 278
Anti-lock brake system (ABS) ...................................... 476 Function ................................ 476
Warning light......................... 654
A
Page 767 of 784

767Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Approach warning ................... 400
Assist grips .............................. 540
Audio input
*
Audio system*
Automatic air conditioning system ..... 488, 498 Air conditioning eco mode .......................... 490, 501
Air conditioning filter ............. 620
Automatic air conditioning system .... 488, 498
Eco score (A/C score)........... 228
Humidity sensor ............ 494, 505
Remote Air Conditioning System ............................... 509
S-FLOW mode .............. 489, 500
Automatic door locking
and unlocking systems ........ 270
Automatic High Beam ............. 343
Automatic light control system .................................... 341
AUX port
*
Auxiliary boxes ........................ 522
Back door ................................. 273
Back-up lights .......................... 635 Replacing light bulbs............. 636
Wattage ................................ 717
Battery (12-volt battery) .......... 587
Battery checking ................... 587
Exchanging ........................... 697
If the 12-volt battery is discharged .......................... 694
Preparing and checking before winter....................... 482
Warning light ......................... 653 Battery (traction battery) .......... 90
Air intake vent ......................... 91
Charging ............................... 102
Location .................................. 90
Specification ......................... 711
Status indicator ..................... 104
Blind Spot Monitor (BSM) ....... 408 Blind Spot Monitor function... 412
Rear Cross Traffic Alert
function............................... 415
Bluetooth
®*
Bottle holders .......................... 521
Brake Fluid ...................................... 716
Parking brake ....................... 337
Regenerative braking ............. 86
Warning light......................... 653
Brake assist ............................. 476
Brake Override System ........... 308
Break-in tips............................. 309
Brightness control Instrument cluster light control ......................... 182
BSM (Blind Spot Monitor) ....... 408 Blind Spot Monitor function... 412
Rear Cross Traffic Alert function............................... 415
Care .................................. 556, 561 Aluminum wheels ................. 557
Camera sensor ..................... 365
Exterior ................................. 556
Interior .................................. 561
Radar sensor ........................ 364
Seat belts.............................. 564
Water-repellent coating ........ 557
B
C
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.
Page 768 of 784

768Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Cargo capacity ......................... 321
Catch protection function ....... 301
CD player
*
Chains....................................... 483
Charging ................................... 102Charging cable...................... 107
Charging equipment ............. 102
Charging indicator................. 106
Charging messages .............. 175
Charging precautions............ 143
Charging procedure .............. 136
Charging time may increase .............................. 126
Charging timer function......... 147
High voltage components ....... 90
Information related to charging display ................. 130
Opening and closing the charging port lid .................. 103
Power sources
precautions ......................... 124
Power sources that can be used.................................... 122
Safety functions ............ 132, 141
When normal charging cannot be carried out.......... 170
Charging cable......................... 107
CCID (Charging Circuit Interrupting Device) ............ 107
If the charging cable
cannot be unlocked ............ 120
Indicator................................. 109
Maintenance ......................... 112
Safety functions .................... 108
Charging port ........................... 102 Opening and closing ............. 103
Smart lid & connector
locking system ..... ............... 113
If the charging port lid does
not open ............................. 116 Child restraint system............... 58
Fixed with a LATCH
system .......... ..................... ... 70
Fixed with a seat belt .............. 64
Front passenger occupant classification syst em ............ 50
Points to remember ................ 58
Riding with children ................ 57
Types of child restraint system installation method ............... 60
Using an anchor bracket......... 73
Child safety ................................ 57 12-volt battery precautions ... 588
Airbag precautions.................. 40
Back door precautions .......... 275
Charging precautions ........... 131
Child restraint system ............. 58
How your child should wear the seat belt ................. 32
Installing child restraints ......... 60
Power window lock switch .... 300
Power window precautions ... 302
Rear door child-protectors .... 270
Removed key battery
precautions......................... 629
Riding with children ................ 57
Seat belt extender precautions........................... 34
Seat belt precautions .............. 69
Seat heater precautions ....... 513
Child-protectors ...................... 270
Cleaning ........................... 556, 561 Aluminum wheels ................. 557
Camera sensor ..................... 365
Exterior ................................. 556
Interior .................................. 561
Radar sensor ........................ 364
Seat belts.............................. 564
Water-repellent coating ........ 557