Charging System Light; Indicator Lamp - GMC 2012 Terrain Owner's Manual

If, after several seconds, both
status indicator lights remain on,
or if there are no lights at all, there
may be a problem with the lights
or the passenger sensing system.
See your dealer for service.
WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light on page 5 11 for more
information, including important
safety information.

Charging System Light

The charging system light comes
on briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
The light turns off when the engine
is started. If it does not, have the
vehicle serviced by your dealer.
If the light stays on, or comes
on while driving, there may be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is
on could drain the battery.
When this light comes on, the
Driver Information Center (DIC)
also displays a message.
Instruments and Controls
See Battery Voltage and Charging
Messages on page 5 26.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.
Malfunction

Indicator Lamp

A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions
are at acceptable levels, to produce
a cleaner environment. This light
comes on when the vehicle is
placed in ON/RUN, as a check to
show it is working. If it does not,
have the vehicle serviced by your
dealer. See Ignition Positions on
page 9 24 for more information.
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