GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 27

26 In Brief
Warning (Continued)
Remember that the temperature
of exhaust gases is high enough
to burn you. You and others could
be seriously injured.
Before starting the manual
regeneration, make sure all of the
following safety conditions are met:
The vehicle is parked on level
ground, away from any
flammable materials.
The vehicle is parked outdoors,
away from any walls or
buildings.
The vehicle is at least 3 m (10 ft)
from any obstructions or
materials that may combust
or melt.
The shift lever is in P (Park).
The fuel tank is at least
one-eighth full.
All fluids are at the proper level.
No diagnostic trouble codes
have been set, and the
malfunction indicator lamp is
not on.
The engine coolant temperature
is above 71 °C (160 °F).
After making sure all of the safety
conditions have been met, press the
trip odometer reset stem or
the steering wheel control for at
least one second to select Start on
the DIC.
Follow the instructions in the DIC
messages. Choose ACCEPT to
acknowledge that all of these safety
conditions have been met and to
activate regeneration.
If the DIC returns to the previous
screen, then one or more of the
necessary operating conditions has
not been met.
Continue to follow the instructions in
the DIC messages. Hold the
Exhaust Brake switch on the
instrument panel below the climate
controls for more than
three seconds, and then release it,
to begin the regeneration process.
If the EXHAUST BRAKE ON
message displays, then the switch
was released too soon. Press it
again to turn off the exhaust brake,
then try again when the DIC
message prompts.
When manual regeneration begins,
the engine speed increases, the
engine cooling fan sound increases,
@
on
and a DIC message indicates that
cleaning is in progress.
A DIC message will display when
cleaning has completed. The
message will remain as long as
cleaning is not necessary. Cleaning
could take up to 30 minutes. Upon
completion, the engine will return to
normal idle, but exhaust
components will remain hot for
several minutes. Do not move the
vehicle until the exhaust has had
time to cool. Manual regeneration
can be canceled at any time by
pressing the brake pedal or turning
the engine off. Unusual noises may
be heard if regeneration is
interrupted.