RAM Truck 2011 Owner's Manual page 284

282 STARTING AND OPERATING
Temperature Warning Light" may illuminate and the
transmission may downshift out of Overdrive until the
transmission cools down. After cool down, the transmis-
sion will resume normal operation.
The transmission will downshift from Overdrive to
DRIVE if the accelerator pedal is fully pressed at vehicle
speeds above approximately 35 mph (56 km/h).
When To Use "TOW/HAUL" Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the "TOW/HAUL" switch. This will improve
performance and reduce the potential for transmission
overheating or failure due to excessive shifting. When
operating in the "TOW/HAUL" mode, fifth gear is
disabled and 2-3 and 3-4 shift patterns are modified.
TOW/HAUL Switch
Shifts into Overdrive (normal fourth gear) are allowed
during steady cruise (for improved fuel economy) and
automatic closed-throttle downshifts to direct gear and a
special underdrive gear (refer to "Electronic Range Se-
lect" in this section) are performed (for improved brak-
ing) when driving conditions warrant.