Dodge 2010 Ram Pickup 3500 Diesel - Manual (Page 57)

select TOW HAUL. This will improve performance and
reduce the potential for transmission overheating or
failure due to excessive shifting. When operating in
“TOW HAUL” mode, sixth gear (if equipped) is disabled
and 2-3 and 3-4 and 4–5 shift patterns are modified. Shifts
into Overdrive (fifth gear) are allowed during steady
cruise (for improved fuel economy). Pressing the “TOW
HAUL O/D OFF” switch a second time to select O/D
OFF will disable fifth and sixth gear completely, which
should eliminate any excessive transmission shifting.
The “TOW HAUL” or “O/D OFF” Indicator Light will
illuminate in the instrument cluster to indicate when the
switch has been activated. Pressing the switch a third
time restores normal operation. If the “TOW HAUL” or
“O/D OFF” modes are desired, the switch must be
pressed each time the engine is started.
WARNING!
Do not use the TOW HAUL feature when driving in
icy or slippery conditions. The increased engine
braking can cause the rear wheels to slide, and the
vehicle to swing around with the possible loss of
vehicle control, which may cause an accident possi-
bly resulting in personal injury or death.
When To Lock Out Overdrive
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent 6–5–6 or 5–4–5 transmis-
sion shifting occurs, press the “TOW HAUL” switch. This
will improve performance and reduce the potential for
transmission overheating or failure due to excessive
shifting.
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
56 STARTING AND OPERATING