Lexus LS460 2008 Owner's Manual page 566

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
Remove the cover located over the battery. (P. 556)
STEP 1
Check the battery condition using the indicator color.
STEP 2
Install the cover over the battery. (P. 556)
STEP 2
STEP 3
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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.