Cushman Truckster XD 2018 Owner's Manual page 51

Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
Operation On Slopes
The vehicle is designed to have good traction and to have good
balance. Operate the vehicle with caution when you drive on a
slope. Driving on wet grass decreases the traction and steering
control of the vehicle.
Loads that shift inside the vehicle bed can cause an
unbalanced load that can tip the vehicle.
To make sure the vehicle does not turn over, the safest method is to
drive up and down on the face of slopes (vertically). Do not drive across
the face horizontally. Travel at a slow speed and do not make turns that
are not necessary. If the vehicle is not operated correctly or turns over,
injury or death can occur.
Check for hazards on the road that are not visible to the driver.
OPERATING PROCEDURES
General slope of roadway embankment - 45°
Steepest Grass Area - 31°
Slope of the average roof - 19-1/4°
2nd Class highway maximum grade 4-1/2°
Toll road or freeway - 1-3/4°
Owner's Guide
Degrees
Grade
B
45