4997-2. Steps to take in an emergency
7
When trouble arises
6Open and close any of the 
doors of your vehicle with the 
power switch OFF.
7 Maintain the engine speed of 
the second vehicle and start 
the hybrid system of your 
vehicle by turning the power 
switch to ON.
8 Make sure the “READY” indi-
cator comes on. If the indica-
tor light does not come on, 
contact your Toyota dealer.
9 Once the hybrid system has 
started, remove the jumper 
cables in the exact reverse 
order from which they were 
connected.
10 Close the exclusive jump 
starting terminal cover, and 
reinstall the fuse box cover to 
its original position.
Once the hybrid system starts, 
have the vehicle inspected at 
your Toyota dealer as soon as 
possible.
■Starting the hybrid system 
when the 12-volt battery is dis-
charged
The hybrid system cannot be started 
by push-starting.
■To prevent 12-volt battery dis-
charge
●Turn off the headlights and the 
audio system while the hybrid sys-
tem is off.
●Turn off any unnecessary electri-
cal components when the vehicle 
is running at a low speed for an 
extended period, such as in heavy 
traffic.
■When the 12-volt battery is 
removed or discharged
●Information stored in the ECU is 
cleared. When the 12-volt battery 
is depleted, have the vehicle 
inspected at your Toyota dealer.
●Some systems may require initial-
ization. ( P.540)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals 
are removed, the information stored 
in the ECU is cleared. Before 
removing the 12-vo lt battery termi-
nals, contact you r Toyota dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt 
battery will discha rge gradually even 
when the vehicle i s not in use, due 
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long 
time, the 12-volt  battery may dis-
charge, and the hybrid system may 
be unable to start. (The 12-volt bat-
tery recharges automatically while 
the hybrid system is operating.)
■When recharging or replacing 
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the 
smart key system when the 
12-volt battery is  discharged. Use 
the wireless remote  control or the 
mechanical key to lock or unlock 
the doors.
●The hybrid syste m may not start 
on the first attempt after the 
12-volt battery has recharged but 
will start normally after the second 
attempt. This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the 
12-volt battery is reconnected, the 
system will return to the mode it 
was in before the 12-volt battery 
was discharged. Before discon-
necting the 12-volt battery, turn 
the power switch off.
If you are unsure what mode the