Ram Trucks 2015 3500 - Owner Manual - Manual (Page 600)

Activating HDC
Once HDC is enabled it will activate automatically if
driven down a grade of sufficient magnitude (greater
than approximately 8%). The set speed for HDC is
selectable by the driver, and can be adjusted by using the
Electronic range switches located on steering column
shifter. The following summarizes the HDC set speed:
Gear Approximate HDC Set Speed
P No set speed. HDC may be enabled
but will not activate
R 0.6 mph (1 km/h)
N 1.2 mph (2 km/h)
1st 0.6 mph (1 km/h)
2nd 1.2 mph (2 km/h)
3rd 1.8 mph (3 km/h)
4th 2.5 mph (4 km/h)
5th 3.1 mph (5 km/h)
6th 3.7 mph (6 km/h)
7th 4.3 mph (7 km/h)
8th 5.0 mph (8 km/h)
9th 5.6 mph (9 km/h)
598 STARTING AND OPERATING