µ
On vehicles with navigation system
The navigation system will also
disableitself.Thenexttimeyouturn
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
you need to connect the battery to
a charger, disconnect both cables to
prevent damaging your vehic le’s
electrical system. Always disconnect
the negative ( ) cable first, and
reconnect it last. If
your vehicle’s battery is
disconnected, or goes dead, the
audio system will disable itsel f. The
nexttimeyouturnontheradio,you
may see ‘‘ENTER CODE’’ in the
f requency display. Use the preset
buttons to enter the code (see page ).
168
Checking the Battery
Maint enance
253
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.
