Dodge 2009 Dakota Owner's Manual page 250

248 STARTING AND OPERATING
1 (First)
For driving up very steep hills and for engine braking at
low speeds, 25 mph (40 km/h) or less, when going down
hill, use 1st gear. To prevent excessive engine speed do
not exceed 25 mph (40 km/h) in this range.
Overdrive Operation
The Overdrive automatic transmission contains an
electronically-controlled 4th and 5th (if equipped) gear
(Overdrive). The transmission will automatically shift
from Drive to Overdrive, if the following conditions are
present:
• the transmission shift lever 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 switch has not been activated;
• transmission
has
temperature.
NOTE: If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into Overdrive
and will automatically select the most desirable gear for
operation at this temperature. Normal operation will
resume when the transmission fluid temperature has
risen to a suitable level. Refer to "Torque Converter
Clutch" in this section.
reached normal operating