Lexus LS460 Owners Book page 656

4-3. Do-it-yourself maintenance
Battery
Check the battery as follows.
■ Battery exterior
Make sure that the battery terminals are not corroded and that there
are no loose connections, cracks, or loose clamps.
■ Checking battery condition (vehicles with the battery indicator)
Check the battery condition using the indicator color.
654
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.