Toyota Highlander Hybrid 2020 Owner's Manual page 417

■ After recharging/reconnecting
the 12-volt battery
● The hybrid system may not start.
Follow the procedure below to ini-
tialize the system.
1
Shift the shift lever to P.
2
Open and close any of the doors.
3
Restart the hybrid system.
● Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
● Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. However,
the hybrid system will operate nor-
mally from the second attempt.
● The power switch mode is
recorded by the vehicle. If the
12-volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 12-volt battery was dis-
connected. Make sure to turn off
the power before disconnect the
12-volt battery. Take extra care
when connecting the 12-volt bat-
tery if the power switch mode prior
to discharge is unknown.
If the system will not start even after
multiple attempts at all the methods
above, contact your Toyota dealer.
WARNING
■ Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or seri-
ous injury, take the following pre-
cautions while working on or near
the 12-volt battery:
HIGHLANDER HV_U
6-3. Do-it-yourself maintenance
● Do not cause sparks by touch-
ing the 12-volt battery terminals
with tools.
● Do not smoke or light a match
near the 12-volt battery.
● Avoid contact with eyes, skin
and clothes.
● Never inhale or swallow electro-
lyte.
● Wear protective safety glasses
when working near the 12-volt
battery.
● Keep children away from the
12-volt battery.
■ Where to safely charge the
12-volt battery
Always charge the 12-volt battery
in an open area. Do not charge
the 12-volt battery in a garage or
closed room where there is insuf-
ficient ventilation.
■ How to recharge the 12-volt
battery
Only perform a slow charge (5 A
or less). The 12-volt battery may
explode if charged at a quicker
rate.
■ Emergency measures regard-
ing electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean
water for at least 15 minutes
and get immediate medical
attention. If possible, continue
to apply water with a sponge or
cloth while traveling to the near-
est medical facility.
● If electrolyte gets on your skin
Wash the affected area thor-
oughly. If you feel pain or burn-
ing, get medical attention
immediately.
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