Toyota Yaris HV 2017 Manual page 448

448
7-3. Do-it-yourself maintenance
■ Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:
●
If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
●
Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■
When disconnecting the 12-volt battery terminals
Always disconnect the negative (-) terminal first.
■
After recharging/reconnecting the 12-volt battery (vehicles with a smart
entry & start system)
● Unlocking the doors using entry function of the smart entry & start system
may not be possible immediately after reconnecting 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 ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally 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 disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
If the system will not start even after multiple attempts, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
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