Starting The Hybrid System When The 12-Volt Battery Is Discharged; Charging The 12-Volt Battery; When Recharging Or Replacing The 12-Volt Battery - Toyota RAV4 Hybrid 2018 Service Manual

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Make sure the "READY" indicator comes on. If the indicator light
does not come on, contact your Toyota dealer.
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Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
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Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at your
Toyota dealer as soon as possible.
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Starting the hybrid system when the 12-volt battery is discharged

The hybrid system cannot be started by push-starting.
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To prevent 12-volt battery discharge
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Turn off the headlights and the audio system while the hybrid system is off.
●
Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
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Charging the 12-volt battery

The electricity stored in the 12-volt battery 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 vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
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When recharging or replacing the 12-volt battery

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In some cases, it may not be possible 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 system 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.
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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 battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.
●
Some systems may require initialization. (→P. 645)
RAV4-HV_OM_OM42B81U_(U)
8-2. Steps to take in an emergency
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