Page 46 of 684

46 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47787U_(U)
Hybrid warning messageA message is automatically displayed when a malfunction occurs in
the hybrid system or an impr oper operation is attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions. ( P. 546)
■If a warning light comes on, a warn ing message is displayed or the 12-
volt battery is disconnected
The hybrid system may not start. In that case, try to start the system again. If
the “READY” indicator does not come on, contact your Toyota dealer.
■ Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be
started, refuel the vehicle with at least enough gasoline to make the low fuel
level warning light ( P. 537) go off. If there is only a small amount of fuel,
the hybrid system may not be able to start. (The minimum amount of fuel to
add to make the low fuel level warning light go out is about 1.9 gal. [7.1 L,
1.6 Imp.gal.], when the vehicle is on a level surface. This value may vary
when the vehicle is on a slope.) 
         
        
        
     
        
        Page 48 of 684
48 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47787U_(U)
CAUTION
■High voltage precautions
The vehicle has high voltage DC and AC systems as well as a 12-volt sys-
tem. DC and AC high voltage is very dangerous and can cause severe burns
and electric shock that may result in death or serious injury.
● Never touch, disassemble, remove or replace the high voltage parts,
cables or their connectors.
● The hybrid system will become hot after starting as the system uses high
voltage. Be careful of both the high voltage and the high temperature, and
always obey the caution labels attached to the vehicle.
●Never try to open the service plug
access hole located in the luggage
compartment. The service plug is used
only when the vehicle is serviced and is
subject to high voltage. 
         
        
        
     
        
        Page 69 of 684
69
1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47787U_(U)
■
Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. If there
is improper tire inflation pressure  in the tires, the driving range
when in EV mode will become shorter, and fuel consumption
when in HV mode will increase.
Also, as snow tires can cause lar ge amounts of friction, their use
on dry roads can lead to increas ed fuel and electricity consump-
tion.
■ Luggage
Carrying heavy luggage can require excessive energy. Avoid
leaving unnecessary lu ggage in the vehicle.
Also, equipping a large roof  rack can cause excessive energy
consumption in the same way as carrying heavy luggage.
■ Warming up before driving
Since the gasoline engine starts up and cuts out automatically,
warming up is not necessary. 
         
        
        
     
        
        Page 84 of 684
84 1-2. Charging
PRIUS PHV_OM_OM47787U_(U)
Confirm that the charging indi-
cator is illuminated. (When the
charging timer function is in
use, the light will turn off sev-
eral seconds after illuminat-
ing.)
Charging will not start if the
charging indicator does not illu-
minate when the charging con-
nector is inserted. (P.  9 9 )
The amount of time until charg-
ing is completed can be
checked on the energy monitor
by turning the “POWER” switch
to ON mode. ( P. 89)
The error warning indicator of
the CCID (Charging Circuit
Interrupting Device) has illumi-
nated during charging: 
P. 102
The charging indicator will turn
off when charging is com-
pleted.
STEP7 
         
        
        
     
        
        Page 86 of 684
86 1-2. Charging
PRIUS PHV_OM_OM47787U_(U)
Charging timer functionBy using the charging timer function,  deterioration of the hybrid bat-
tery (traction battery) charge can be suppressed ( P. 93), and off-
peak electricity can be used effectively.
● A charging time can be assigned  by setting the charging start time
or finish time. 
● Once the time has been set, the time can be assigned again next
time simply by pressing the charging timer switch.
Remove the plug from the out-
let when the charging equip-
ment will not be used for a
prolonged period of time.
Hold the body of the plug when
removing.
Make sure to put the cable
away immediately after discon-
necting. ( P. 95)
When leaving the plug
inserted, inspect the plug and
connector once a month to
check if dirt or dust has accu-
mulated.
STEP 4  
         
        
        
     
        
        Page 87 of 684
87
1-2. Charging
1
Before driving
PRIUS PHV_OM_OM47787U_(U)
■
Setting the charging timer function
Stop the vehicle and press the
charging timer switch.
The multi-information display will
switch to the charging timer dis-
play.
If not changing the set time: go to
Press and hold the charging
timer switch.
The time display will change from
solid to flashing.
Press the charging timer switch
to select a setting mode.
Start time setting mode
Finish time setting mode
The mode will switch with each
press of the charging timer
switch.
STEP 1 
STEP 6 
STEP 2 
STEP 3  
         
        
        
     
        
        Page 88 of 684
88 1-2. Charging
PRIUS PHV_OM_OM47787U_(U)
Adjust the set time using the time
adjustment button. (P. 275)
Adjust hours.
Adjust minutes.
Round to the nearest hour.
*
*
: e.g. 1:00 to 1:29  1:00
1:30 to 1:59  2:00
Press and hold the charging
timer switch.
Once set, the time display will
change from flashing to solid, and
the charging timer indicator on
the instrument cluster will come
on.
Turn the “POWER” switch off. ( P. 240)
The charging timer indicator will start flashing.
Connect the charging cable to the vehicle. ( P.  8 0 )
Check that the charging indicator ( P. 73) has come on. It will turn
off after several seconds.
If the indicator does not come on, re-insert the charging connector. If
it still does not come on, check the power supply status using the
power indicator on the CCID (Charging Circuit Interrupting Device).
STEP 4 
STEP 5 
STEP 6 
STEP7 
         
        
        
     
        
        Page 91 of 684

91
1-2. Charging
1
Before driving
PRIUS PHV_OM_OM47787U_(U)
■
Safety functions
● The hybrid system will not start while the charging cable is attached to
the vehicle, even if the “POWER” switch is operated.
● If the charging cable is connected while the “READY” indicator is illumi-
nated, the hybrid system will stop automatically and driving will not be
possible.
● When the charging cable is connected to the vehicle, the shift position
cannot be changed from P to another position.
● If the latch release button is pressed, charging will not begin even if the
charging cable is connected.
Also, charging will be stopped if the latch release button is pressed and
held for several seconds during charging. When restarting charging, rein-
sert the charging connector after pulling it out, and check that the charg-
ing indicator illuminates.
■ For correct operat ion of the charging timer function
Check the following points.
● Check that the time is correct.
● Check that the “POWER” switch is OFF.
● Do not use a connector which has an electricity interruption function
(including timer functions). 
(Use a connector which supplies electricity normally.)
■ Automatic cancelation of the charging timer function
● If the Remote Air Conditioning System is operated while the charging
cable is connected, the charging timer function will be canceled. Charg-
ing will commence after the Remote Air Conditioning System has been
turned off.
● Charging will not commence if the “POWER” switch is not OFF, even at
the set time.