Page 493 of 620
4938-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
(Flashes)
(If equipped)
P position request indicator light (warning buzzer)
The amount of charge remaining in the hybrid battery
(traction battery) has fallen because the shift position has
been left in N for a long time
Because recharging is not possible when the shift
position is in N, shift the shift position to P when
parking the vehicle for a long time.
• The driver’s door has been opened while the shift posi-
tion is in N, D or B
• An attempt has been made to start the hybrid system
while the shift position is in anything other than P
Shift the shift position to P.
(If equipped)
Hybrid system overheat warning light (warning buzzer)
The hybrid system has overheated
This light may come on when driving under severe operat-
ing conditions, and the output of the hybrid system may
temporarily decrease in order to protect the system. (For
example, when driving up a long steep hill or driving up a
steep hill in reverse.)
Stop and check. (P. 543)
(If equipped)
Cruise control indicator (yellow indicator)
Indicates a malfunction in the cruise control
Have the vehicle inspected by your Toyota dealer
immediately.
(Only outer frame
flashes)
(If equipped)
Low hybrid battery (traction battery) warning light
(warning buzzer)
Hybrid battery (traction battery) level becomes low
because the shift position is in N for long time
Because recharging is not possible when the shift
position is in N, shift the shift position to P when
parking the vehicle for a long time.
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. 543)
(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.
Warning lightWarning light/Details/Actions
Page 546 of 620
5468-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact your Toyota dealer.
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant could spray out.
6
Page 557 of 620
PRIUS v_OM_OM47B12U_(U)
5579-1. Specifications
9
Vehicle specifications
Cooling system
Capacity
Gasoline
engine7.3 qt. (6.9 L, 6.1 Imp.qt.)
Power
control unit2.9 qt. (2.7 L, 2.4 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO SC20HR11 or SC16HR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68F (20C):
12.0 V or higher
If the voltage is lower than the standard
value, charge the battery.
(Voltage is checked 30 seconds after the
hybrid system and all lights are turned off.)
Charging rates4.2 A max.
Page 608 of 620
608Alphabetical index
PRIUS v_OM_OM47B12U_(U)
If you have a flat tire ............. 521
If you lose your keys ............. 119
If you think something
is wrong .............................. 489
If your vehicle becomes
stuck ................................... 548
If your vehicle has to be
stopped in an emergency ... 483
If your vehicle needs to be
towed .................................. 484
If your vehicle overheats ....... 543
Energy monitor ................ 102, 108
Engine
Accessory mode ................... 176
Compartment ........................ 425
Engine switch........................ 174
Exhaust gas precautions ........ 72
Hood ..................................... 421
How to start the hybrid
system ................................ 174
Identification number ............ 554
If the hybrid system will
not start .............................. 534
If your vehicle has to be
stopped in an emergency ... 483
Ignition switch
(power switch) .................... 174
Overheating .......................... 543
Power switch......................... 174Engine coolant
Capacity................................ 557
Checking............................... 431
Preparing and checking
before winter ...................... 263
Engine coolant temperature
warning light.......................... 493
Engine oil
Capacity................................ 555
Checking............................... 427
Oil pressure warning light ..... 490
Preparing and checking
before winter ...................... 263
Engine switch .......................... 174
Auto power off function ......... 176
Changing the power
switch modes ..................... 176
If your vehicle has to be
stopped in an emergency ... 483
Starting the hybrid system .... 174
Engine switch light
(power switch light) .............. 373
EPS
(Electronic Power Steering)
Function ................................ 246
Warning light......................... 491
EV indicator ............................... 96
EV drive mode ......................... 179
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 72
