If a warning message is shown on the multi-information display, stay calm and perform the following actions:

If any of the warning message or indicator comes on again after the following actions have been performed, contact your toyota dealer.
If a warning light turns on
or a warning buzzer
sounds
Warning message and warning buzzer listCharging system (2AZ-FE)
PRECAUTION
CAUTION:
Check that the battery cables are connected to the correct terminals.
Disconnect the battery cables when the battery is given a quick
charge.
Do not perform tests with a high voltage insulation resistance
tester.
Never disconnect the battery while the engine is r ...