Step-Bumper Pad - Chevrolet 2003 Silverado Owner's Manual

All engine speed values listed above are factory preset
values. With the exception of the TCC lockup speed
(1,100 rpm) and the "tap" increment (100 rpm), all
of these values are programmable and can be adjusted
by your dealer or body upfitter. If the PTO software
settings do not match the settings shown here, then they
may have already been altered in order to satisfy the
requirements of the installed PTO system and body
equipment.
When the PTO switch is turned on, the engine is limited
to 2200 rpms. If there are no accessories installed on
the vehicle, make sure the PTO switch is turned off.

Step-Bumper Pad

Your vehicle has a rear step bumper with a rear step
pad at the center of the bumper.
If your step-bumper has only one cutout circle, you will
have to cut out the circle, then remove it to install
the trailer ball.
If you will be using the
bumper to tow a trailer,
and your step-bumper has
three cutout circles, you
must push out the
center cutout circle to
install the trailer ball.
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