16
Operation
Trailer Operation
Trailer Connecting and Sliding Trailer Axle
• Prior to backing the vehicle under the trailer, ensure proper trailer 
height.
• Select the lowest available start gear for Drive (1st) or Reverse (R1) 
using the Downshift function as needed on the transmission driver 
interface device.
• Refer to vehicle and trailer manufacturer guidelines for unlocking, slid-
ing and locking trailer axles.
Note: If repeat attempts are made and the automated clutch starts to overheat, 
the display may indicate “CA” (Clutch Abuse) and/or a clutch temperature mes-
sage and an audible tone may be emitted. Refer to 
“Clutch Abuse Protection” 
on page 19
.