from the center of the hitch ball to the surface of the road ⇒ fig. 109 
(D) be less than the specified minimum. This minimum height must be 
present even when the vehicle is fully loaded and subject to the max-
imum tongue weight. 
Distance dimensions ⇒ fig. 109: 
(A) Attachment points. 
(B) 46 inches (1170 mm) 
(C) at least 3 inches (79 mm) 
(D) 14–16 inches (350 – 420 mm) 
(E) 10 inches (251 mm) 
(F) 21 inches (546 mm) 
(G) 41 inches (1031 mm) 
(H) 41 inches (1036 mm) 
  WARNING 
Improper or incorrect connections to the vehicle electrical sys-
tem can cause malfunctions that affect the entire vehicle elec-
trical system and cause accidents and serious personal injury. 
  Never connect the electrical system of the trailer directly to 
the electrical connections of the rear lights or other unsuitable 
power sources. Use only a suitable connector to provide power 
to the trailer. 
  Have any trailer hitch retrofit or other work on a trailer hitch 
done by a qualified workshop.  
  WARNING 
An improperly installed or unsuitable trailer hitch can cause the 
trailer to separate from the towing vehicle and result in a major 
accident with serious personal injuries. 
Maximum permissible trailer weight