Lexus ES-300 2001 Manual page 470

" 1 Terminals
2 Hold–down clamp
Check the battery for corroded or loose
connections, cracks, or loose hold–down clamps.
1. If the battery is corroded, wash it off with a solution of
warm water and baking soda. Coat the terminals with
grease to prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts
– but do not overtighten.
3. Tighten the hold–down clamp only enough to keep
the battery firmly in place. Overtightening may damage
the battery case.
ELECTRICAL COMPONENTS
NOTICE
D Make sure the engine and all accessories are
turned off before performing maintenance.
D When checking the battery, remove the ground
cable first and reinstall it last.
D Be careful not to cause a short circuit with
tools.
D Take care no solution gets into the battery
when washing it.
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