Honda 2007 Ridgeline, Owner'S Manual

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If your vehicle’s battery is
disconnected or goes dead, the audio
system will disable itself. The next
time you turn on the radio you will
see ‘‘CODE’’ in the frequency display.
Use the preset bars to enter the code
(see page
).
The navigation system will also
disable itself. The next time you turn
on the ignition switch, the system
will require you to enter a PIN
before it can be used. Refer to the
navigation system manual.
If additional battery maintenance is
needed, see your dealer or a
qualified technician.
Battery posts,
terminals, and related accessories
contain lead and lead compounds.
If you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehicle’s
electrical system. Always disconnect
the negative (
) cable first, and
reconnect it last.
Check the terminals for corrosion (a
white or yellowish powder). To
remove it, cover the terminals with a
solution of baking soda and water. It
will bubble up and turn brown. When
this stops, wash it off with plain
water. Dry off the battery with a
cloth or paper towel. Coat the
terminals with grease to help prevent
future corrosion.
162
On vehicles with navigation system
Checking the Battery
WARNING:
Wash your hands af ter handling.
Ma
int
e
na
nce
271
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
technician do the battery
maintenance.