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8
COROLLA HV_ 国瑞 _GE
8-2. Steps to take in an emergency
W
hen tr
oubl
e aris
es
system while the hybrid system is off.
●
Turn off any unnecessary electrical
components when the vehicle is run-
ning 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 initializa-
tion. (
■
When removing the 12-volt battery
terminals
When the 12-volt battery terminals are
removed, the information stored in the
ECU is cleared. Before removing the
12-volt battery terminals, contact your
Toyota dealer.
■
Charging the 12-volt battery
The electricity stored in the 12-volt bat-
tery will discharge gradually even when
the vehicle is not in use, due to natural
discharge and the draining effects of
certain electrical appliances. If the vehi-
cle is left for a long time, the 12-volt bat-
tery may discharge, and the hybrid
system may be unable to start. (The
12-volt battery recharges automatically
while the hybrid system is operating.)
■
When recharging or replacing the
12-volt battery (vehicles with a
smart entry & start system)
●
In some cases, it may not be possible
to unlock the doors using the smart
entry & start system when the 12-volt
battery is discharged. Use the wire-
less remote control or the mechanical
key to lock or unlock the doors.
●
The hybrid system may not start on
the first attempt after the 12-volt bat-
tery has recharged but will start nor-
mally after the second attempt. This is
not a malfunction.
●
The power switch mode is memorized
by the vehicle. When the 12-volt bat-
tery is reconnected, the system will
return to the mode it was in before the
12-volt battery was discharged.
Before disconnecting the 12-volt bat-
tery, turn the power switch off.
If you are unsure what mode the
power switch was in before the 12-volt
battery discharged, be especially
careful when reconnecting the 12-volt
battery.
■
When replacing the 12-volt battery
●
Use a 12-volt battery that conforms to
European regulations.
●
Use a 12-volt battery with the same
case size as the previous 12-volt bat-
tery and an equivalent 20 hour rate
capacity (20HR) or greater.
• If the sizes differ, the 12-volt battery
cannot be properly secured.
• If the 20 hour rate capacity is low,
even if the time period where the vehi-
cle is not used is a short time, the
12-volt battery may discharge and the
hybrid system may not be able to
start.
●
For details, consult your Toyota
dealer.
WARNING
■
When removing the 12-volt bat-
tery terminals
Always remove the negative (-) termi-
nal first. If the positive (+) terminal
contacts any metal in the surrounding
area when the positive (+) terminal is
removed, a spark may occur, leading
to a fire in addition to electrical shocks
and death or serious injury.
■
Avoiding 12-volt battery fires or
explosions
Observe the following precautions to
prevent accidentally igniting the flam-
mable gas that may be emitted from
the 12-volt battery:
COROLLA HYBRID_OM_General_OM12M44E
Summary of Contents for Corolla Hybrid 2019
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Page 120: ...118 COROLLA HV_ 国瑞 _GE 2 1 Instrument cluster COROLLA HYBRID_OM_General_OM12M44E ...
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