Power Take-Off (Pto) - Chevrolet Silverado 4500HD 2022 Owner's Manual

252 Driving and Operating

Power Take-Off (PTO)

If equipped, the Power Take-Off (PTO) is a
GM Upfitter integrated system that is used
to create an auxiliary power source for
running add-on equipment, such as salt
spreaders, snow plows, winches, and lift
buckets. The PTO system controls engine
speed to values higher than normal base
idle, PTO load relay engagement, and
remote starting and shutdown of the
engine.
When installing PTO aftermarket equipment,
the PTO wiring and operation
recommendations provided by the service
manual and GM Upfitter documentation
must be strictly followed.
Refer to the bulletins in the Upfitter
Integration website www.gmupfitter.com for
the Power Take Off (PTO) operating
description and application guide.
Warning
Engine exhaust contains Carbon
Monoxide (CO), which cannot be seen or
smelled. Exposure to CO can cause
unconsciousness or even death. Never
Warning (Continued)
operate PTO in an enclosed area such as
a garage or building that has no fresh air
ventilation. See Engine Exhaust 0 205.
If the key is in the ignition during
Remote PTO operation, the vehicle can be
shifted out of P (Park). Even though PTO
will be disengaged, depending on PTO
Upfitter application, personal injury or
property damage may result from vehicle
movement. Always remove the key from
the ignition before operating
Remote PTO.
Primary PTO Operating Modes
PTO modes of operation are:
Preset
Stationary operation only: In-cab control
is standard, remote control is available.
Variable
Stationary operation only: In-cab control
is standard, remote control is available.
(Continued)
Warning
Mobile
In-cab control only.
Operator Selectable In-Cab Mode (OSIM)
OSIM is for in-cab operation only.
OSIM is for vehicles that require both
stationary and mobile modes. OSIM is
available via the GM Service Tool only.
During the configuration of OSIM, two
modes must be paired. The options for
pairing are: stationary preset and mobile,
or stationary variable and mobile. During
activation of OSIM, the operator must
select one of the two modes within the
pre-configured pairing. If an OSIM mode is
not selected, PTO will not operate.
OSIM modes of operation are:
Stationary
For stationary mode, the configuration
may be stationary preset or stationary
variable.
Mobile
For mobile mode, the configuration is
variable only.
Selection between OSIM pairings is not
available.
Remote modes are not available.