Tachometer; Charging System Light - GMC Yukon Denali 2010 Manual

Tachometer

United States Version
shown, Canada similar
When the gas engine is off and the key is in the
ON/RUN position, the position of the tachometer
indicator shows the state of the vehicle:
AUTO STOP position indicates that the vehicle is
still able to move and the engine could restart, by
an Auto Start, at any time.
OFF position indicates that the vehicle is off.
When the engine is on, the tachometer indicator shows
the engine's revolutions per minute (rpm).
4-4

Charging System Light

It should go out once the engine has been started. If it
stays on, or comes on while driving, there could be a
problem with the 12 V charging system. Have the
vehicle serviced by your dealer/retailer. A 12 V charging
system Driver Information Center (DIC) message may
also appear. See DIC Warnings and Messages on
page 4 12 for more information. This light could
indicate that there are electrical problems. Have it
checked right away. If a short distance must be driven
with the light on, be certain to turn off all the
accessories.
This 12 V battery light
comes on briefly when
the ignition is turned to
ON/RUN, but the engine
is not running, as a check
to show it is working.