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GMC 1998 Yukon - Voltmeter; Brake System Warning Light

GMC 1998 Yukon
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Voltmeter
19
When your engine
is
not
running,
but
the ignition is
in
the RUN position, this
gage shows your battery’s
state
of
charge
in
DC
volts.
When the engine
is
running, the gage shows the
condition
of
the
charging system. Readings between the
low
and high warning zones indicate
the
normal
operating range.
Readings
in
the low warning zone may occur when
a
large number
of
electrical accessories are operating
in
the vehicle and the engine is left at an idle for an
extended period. This condition is normal since the
charging system is not able to provide
full
power at
engine idle.
As
engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
You can only drive for a short time with the reading
in
either warning zone.
If
you must drive,
turn
off
all
unnecessary accessories.
Readings
in
either warning zone indicate a possible
problem
in
the electrical system. Have the vehicle
serviced as
soon
as possible.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come
on
when you set your parking brake. The light
will
stay
on
if
your parking brake doesn’t release fully.
If
it
stays
on
after
your
parking brake is
fully
released,
it
means you have a brake problem.
Your vehicle’s hydraulic brake system is divided into
two parts.
If
one part isn’t working, the other part can
still work and stop you.
For
good braking, though, you
need both parts working well.
If
the warning light comes
on,
there could
be
a brake
problem. Have your brake system inspected right away.
2-74

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