Information Displays; Power Take-Off Light - GMC Duramax Diesel 2015 Owner's Manual

Diesel Exhaust Fluid
(DEF) Warning Light
This light, a Driver Information
Center (DIC) message, and a chime
come on when there is an issue with
the Diesel Exhaust Fluid.
See Diesel Exhaust Fluid Messages
on page 5-13 for information on the
specific message displaying with the
light.
If the DEF fluid level has not been
corrected, the light will continue to
flash when the vehicle is started.
The vehicle's speed may also be
limited.
Also see Diesel Exhaust Fluid on
page 9-13.

Power Take-Off Light

Non-Denali Pickups
The vehicle may have a Power
Take-Off (PTO) light. Under normal
operating conditions, the PTO light
will remain on throughout the PTO
operating cycle. If all conditions
required to engage PTO have not
been met when enabling PTO, the
PTO light will turn on, then turn off
after one second. See Power
Take-Off (PTO) on page 9-43.
Instruments and Controls

Information Displays

Driver Information
Center (DIC)
The DIC is in the instrument cluster.
The DIC comes on when the ignition
is on.
A Duramax diesel vehicle may have
the following additional DIC menu
items.
EXHAUST FLUID LEVEL
The EXHAUST FLUID LEVEL will
be displayed as either OK, XX%,
or LOW.
When LOW appears on the display,
add diesel exhaust fluid as soon as
possible. See Diesel Exhaust Fluid
on page 9-13.
5-11