automatic transmission Ram 3500 2011 Diesel Supplement

5. Using the screwdriver, press and hold the override tab
through the access port (ringed circle) on the bottom of
the steering column.
6. Move the shift lever into the NEUTRAL position.
7. The vehicle may then be started in NEUTRAL.Six-Speed Automatic Transmission with
Overdrive (68RFE) – If Equipped (Ram Truck
Only)
The shift lever display located in the instrument panel
cluster indicates the transmission gear range (the selector
is illuminated for night driving). The shift lever is
mounted on the right side of the steering column. You
must press the brake pedal to pull the shift lever out of
PARK position (Brake Interlock System). To drive, move
the shift lever from PARK or NEUTRAL to the desired
DRIVE position. Pull the shift lever toward you when
shifting into REVERSE or PARK, or when shifting out of
PARK.
Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows
you to move the switch down (-) or up (+) when the
shifter is in the D (Drive) position, allowing the selection
of the desired top gear. For example, if the driver shiftsInterlock Manual Override
62 STARTING AND OPERATING

NEUTRAL
Use this range when the vehicle is standing for prolonged
periods with the engine running. The engine may be
started in this range. Set the parking brake if you must
leave the vehicle.
DRIVE
This range provides underdrive first, second and third
gears, direct fourth gear and overdrive fifth and sixth
gears. The shift into overdrive fifth and sixth gear occurs
only after the transmission has completed the shift into
fourth gear. No other movement of the shift mechanism
is required to complete the 4–5 or 5–6 gear shifts.
Upshifts into both overdrive gears, fifth and sixth, will be
delayed when the transmission fluid temperature is
below 40°F (4.5°C) or above 240°F (115.5°C).NOTE:
Use caution when operating a heavily loaded
vehicle in second or first gear in high ambient tempera-
tures as torque converter slip can impose significant
additional heat load on the cooling system.
Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled fifth and sixth (Overdrive). The
transmission will automatically shift from DRIVE to
Overdrive if the following conditions are present:
•the 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;
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STARTING AND OPERATING 65

•transmission has reached normal operating
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 the “Note” under
“Torque Converter Clutch” later in this section.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough the “Transmission
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
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the “TOW/HAUL” switch once to select
“TOW/HAUL.” In “TOW/HAUL” mode, fourth to fifth
gear upshifts are delayed. Shifts into fifth and sixth gear
are still allowed under steady cruise conditions. Closed
throttle downshifts (for improved engine braking) may
occur during steady braking maneuvers. Pressing the
switch a second time restores normal operation. Normal
operation is always the default at engine start-up.
66 STARTING AND OPERATING

The “TOW/HAUL Indicator Light” will illuminate in the
instrument cluster to indicate when the switch has been
activated. If the “TOW/HAUL” modes are desired, the
button must be pressed each time the engine is started.
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally at calibrated speeds. This may result in a slightly
different feeling or response during normal operation in
the upper gears. When the vehicle speed drops or during
acceleration when the transmission downshifts to second
gear, the clutch automatically disengages.
NOTE:
•The torque converter clutch will not engage, and the
transmission will not shift to sixth gear, until the
transmission fluid and engine coolant are warm [usu-
ally after 1-3 miles (1.6 - 4.8 km) of driving]. Because
sixth gear is disabled, and engine speed is higher
when the torque converter clutch is not engaged, it
may seem as if the transmission is not shifting prop-
erly when cold. This is normal. Using the Electronic
Range Select (ERS) feature, when the transmission is
TOW/HAUL Switch
4
STARTING AND OPERATING 67

sufficiently warm, will demonstrate that the transmis-
sion is able to shift into and out of Overdrive.
•If the vehicle has not been driven in several days, the
first few seconds of operation after shifting the trans-
mission into gear may seem sluggish. This is due to the
fluid partially draining from the torque converter into
the transmission. This condition is normal and will not
cause damage to the transmission. The torque con-
verter will refill within five seconds of shifting from
PARK into any other gear position.
Automatic Transmission with Overdrive (AS68RC)
– If Equipped (Chassis Cab Only)
The shift lever display located in the instrument panel
cluster, indicates the transmission gear range (the selector
is illuminated for night driving). The shift lever is
mounted on the right side of the steering column. You
must press the brake pedal to pull the shift lever out of
PARK position (Brake Interlock System). To drive, movethe shift lever from PARK or NEUTRAL to the desired
DRIVE position. Pull the shift lever toward you when
shifting into REVERSE or PARK.
Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control allows
you to move the switch down (-) or up (+) when the
shifter is in the D (Drive) position, allowing the selection
of the desired top gear. For example, if the driver shifts
the transmission into third gear, the transmission will
never shift above third gear, but can shift down into
second or first gear, when needed.
68 STARTING AND OPERATING

REVERSE
This range should be used only after the vehicle has come
to a complete stop.
NEUTRAL
Use this range when the vehicle is standing for prolonged
periods with the engine running. The engine may be
started in this range. Set the parking brake if you must
leave the vehicle.
DRIVE
This range provides all forward gears, including fourth
gear direct, fifth and sixth. Use this range for most city
and highway driving. Upshifts into both overdrive gears,
fifth and sixth, will be delayed when the transmission
fluid temperature is between -4°F (-20°C) and 41°F (5°C).
During very cold conditions when the transmission fluid
is below -4°F (-20°C), the transmission will be limited to
third gear. Normal operation will return after the trans-
mission fluid warms up.NOTE:
Use caution when operating a heavily loaded
vehicle in second or first gear selections in high ambients
as torque converter slip can impose significant additional
heat load on the cooling system.
Overdrive Operation
The Overdrive automatic transmission contains an elec-
tronically controlled fifth and sixth gear. The transmis-
sion will automatically shift from DRIVE to fifth or sixth
gear if the following conditions are present:
•the shift lever is in DRIVE;
•the engine coolant has reached normal operating tem-
perature;
•vehicle speed is above approximately 38 mph
(61 km/h) for fifth gear and 50 mph (80 km/h) for
sixth gear;
•the “TOW/HAUL” switch has not been activated
(sixth gear is inhibited in “TOW/HAUL” mode);
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STARTING AND OPERATING 71

•transmission has reached normal operating
temperature.
NOTE: If the vehicle is started in extremely cold tem-
peratures, the transmission shift schedule initially re-
stricts transmission operation in forward gear ranges to
third gear until the transmission fluid temperature rises
to a suitable level. During this condition, the ability of the
vehicle to accelerate under heavily loaded conditions
may be reduced. Refer to the “Note” under “Torque
Converter Clutch” in this section.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough, the “Transmission
Temperature Warning Light” may illuminate. After cool
down, the transmission 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 to 40 mph (57 to 65 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 once to select the
“TOW/HAUL” mode. 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 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). When “TOW/HAUL”
mode is selected, the transmission may automatically
downshift into a lower gear to improve engine braking
performance when the throttle pedal is not pressed.
72 STARTING AND OPERATING

The “TOW/HAUL Indicator Light” will illuminate in the
instrument cluster to indicate when the switch has been
activated. If the “TOW/HAUL” mode is 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.
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle.
A clutch within the torque converter engages automati-
cally at calibrated speeds. This may result in a slightly
different feeling or response during normal operation in
high gear. When the vehicle speed drops or during
acceleration when the transmission downshifts to first or
second gear, the clutch automatically disengages.
TOW/HAUL Switch
4
STARTING AND OPERATING 73

POWER TAKE OFF OPERATION — IF EQUIPPED
(CHASSIS CAB ONLY)
This vehicle when equipped with either the AS68RC
automatic six-speed or G-56 manual six-speed transmis-
sions, will allow for an aftermarket upfit with a transmis-
sion driven PTO (power take off). The customer will have
the ability to operate the PTO in either a “stationary” or
“mobile” mode. The vehicles will be factory set to the
“stationary” mode. In order to select the “mobile” mode
an authorized dealership is required to modify the vehi-
cle’s settings using their proprietary authorized dealer
service tool.
AS68RC Six-Speed Automatic Transmission Only
The PTO drive gear (part of the AS68RC) operates at
torque converter turbine speed. The turbine speed will be
less than engine speed when the torque converter clutch
is not engaged and will be same as engine speed when
the torque converter clutch is engaged.
Stationary Mode
To operate the PTO in this mode the vehicle must meet
the following conditions:
•Be in PARK position (vehicles equipped with auto-
matic transmission)
•Upfitter provider (on/off) switch has been activated
•Parking brake applied (vehicles equipped with
manual transmission)
•Brake pedal must not be applied
•Vehicle engine must be running
•No vehicle, brake or clutch switch faults present
•PTO must be correctly installed using the vehicle
provided circuits
78 STARTING AND OPERATING

The customer has the choice to operate the PTO by
utilizing the cruise control switches or by utilizing a
remote control (provided by the PTO supplier). To oper-
ate the feature using the cruise control switches, the
customer must first activate the upfitter-provided on/off
switch which will turn on the PTO. In order to increase or
decrease the engine idle speed, to optimize the PTO
function, the “RESUME/ACCEL” and “DECEL” cruise
switches can be used respectively. To disengage PTO
operation and return to “standard vehicle operation”
simply turn the upfitter-provided on/off switch to the
OFF position.
The torque converter lockup clutch will automatically
engage at engine speeds above 1,200 RPM (engine speed)
in PTO stationary mode. Once engaged, the lockup clutch
will remain on and not disengage until the engine speed
is below 1,000 RPM. Lockup clutch engagement is desir-
able for certain types of PTO applications (AS68RC
Six-Speed Automatic Transmission Only).To operate the PTO via a remote switch, the customer
must make sure the above conditions are met. It is vital
for proper operation that the PTO and remote have been
installed correctly, paying special attention to ensure the
vehicle provided wiring has been connected properly.
This is the responsibility of the installer of the PTO and
switches/remote system. It is the responsibility of the
PTO manufacturer to ensure that their electrical (switches
and remote) system is compatible with the vehicle’s
electrical architecture and software functionality.
Mobile Mode
To operate the PTO in this mode the vehicle must meet
the following conditions:
•Authorized dealer-selected “mobile” mode activated
via authorized dealer proprietary service tool
•Upfitter-provided (on/off) switch has been activated
4
STARTING AND OPERATING 79