Dodge 2006 Ram Pickup 3500 - Manual (Page 268)

“1” First
Use this position for driving up very steep hills and for
engine braking at low speeds 20 mph (32 km/h) or less
when going downhill. To prevent excessive engine speed,
do not exceed 25 mph (40 km/h) in this range.
NOTE: Use caution when operating a heavily loaded
vehicle in “2” Second or “1” First gear selections in high
ambients as torque converter slip can impose significant
additional heat load on the cooling system.
WARNING!
Never use Park position on an automatic transmis-
sion as a substitute for the parking brake. Always
apply parking brake fully when parked to guard
against vehicle movement and possible injury or
damage.
Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled fourth and fifth (if equipped) speed
(Overdrive). The transmission will automatically shift
from Drive to Overdrive if the following conditions are
present:
• the transmission selector is in Drive;
• the engine coolant has reached normal operating tem-
perature;
• vehicle speed is above approximately 30 mph (48
km/h);
• the “TOW HAUL O/D OFF” switch has not been
activated;
• transmission has reached normal operating tempera-
ture.
268 STARTING AND OPERATING