Chevrolet 4500 HD 2023 Manual page 155

154 Driving and Operating
Interruption of Switch Regeneration
If you must interrupt regeneration for an
unavoidable reason, press the DPF switch
again.
The regeneration in progress indicator light
(amber) changes to the selectable (switch)
regeneration required warning light (amber).
Then, you can drive the vehicle. If you
interrupt regeneration, you need to perform
regeneration again.
Perform switch regeneration beginning with
Step 1 as soon as possible.
Switch regeneration will be interrupted in
the following circumstances:
Accelerator pedal is pressed.
Gear-in.
Vehicle speed is above 0 km/h (0 MPH).
Engine speed increases.
Operation noise caused by interruption is
louder when pressing the accelerator pedal
than other operations. This is not a failure.
Selectable Regeneration Procedure
Your vehicle is equipped with Selectable
Regeneration. This procedure is designed for
vehicles that do not normally operate in
conditions that make automatic regeneration
possible. This function allows the driver to
check the status of the PM level and, when
available, perform Switch regeneration at a
convenient time for the driver.
Selectable regeneration may only be
performed when no other DPF message is
present on the DIC. Be sure to follow any
DPF messages present on the DIC to
properly complete a DPF regeneration.
It is recommended to use the procedure
during breaks in PTO operation (if equipped)
and other low speed applications.
Warning
Do not leave the vehicle during the
regeneration.
Make sure that there are no flammables
near the muffler, DPF and exhaust pipe
which may result in a fire.
Remember that the temperature of
exhaust gases is high enough to burn
you. You and others could be seriously
injured.
1. Stop the vehicle at a safe place free of
flammable material such as dead grass,
leaves or waste paper.
2. Move the selector lever into the P
position and firmly engage the parking
brake.