Battery Check - Lexus 2008 ES350 Owner's Manual

4-3. Do-it-yourself maintenance
Battery
Check the battery as follows.
Battery exterior
n
Make sure that the battery terminals are not corroded and that there
are no loose connections, cracks, or loose clamps.
Checking battery condition
n
Check the battery condition using the indicator color.
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Terminals
Hold-down clamp
Blue: Good condition
White: Charging is necessary.
Have the vehicle inspected by
your Lexus dealer.
Red: Not working properly,
have the battery checked by
your Lexus dealer.