Toyota 1999 Sienna Owner's Manual page 254

—Checking battery exterior
Terminals Ground cable
Hold−down
clamp
Check the battery for corroded or loose
terminal connections, cracks, or loose
hold−down clamp.
a. If the battery is corroded, wash it off
with a solution of warm water and baking
soda. Coat the outside of the terminals
with grease to prevent further corrosion.
b. If the terminal connections are loose,
tighten their clamp nuts—but do not over-
tighten.
c. Tighten the hold−down clamp
enough to keep the battery firmly in place.
Overtightening may damage the battery
case.
254
NOTICE
z Be sure the engine and all accesso-
ries are off before performing main-
tenance.
z When checking the battery, remove
the ground cable from the negative
terminal ("−" mark) first and rein-
stall it last.
z Be careful not to cause a short cir-
cuit with tools.
z Take care no solution gets into the
battery when washing it.
only
name. SIENNA (45403U)
—Checking battery fluid
Type A
Clear or
light yellow
Green Dark
Type B
Blue White Red
CHECKING BY THE HYDROMETER
Check the battery condition by
hydrometer color.
Hydrometer color
Condition
Type A Type B
GREEN BLUE Good
Charging necessary.
Have battery
DARK WHITE
checked by your
Toyota dealer.
CLEAR Have battery
or LIGHT RED checked by your
YELLOW Toyota dealer.
the