transmission RAM CHASSIS CAB 2012 Service Manual

WARNING! (Continued)• Safety chains must always be used between your
vehicle and trailer. Always connect the chains to
the hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
• Vehicles with trailers should not be parked on a
grade. When parking, apply the parking brake on
the tow vehicle. Put the tow vehicle transmission
in PARK. For four-wheel drive vehicles, make sure
the transfer case is not in NEUTRAL. Always,
block or  chock  the trailer wheels.
• GCWR must not be exceeded.
• Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
(Continued) WARNING! (Continued)2. GTW
3. GAWR
4. Trailer tongue weight rating for the trailer hitch
utilized (This requirement may limit the ability to
always achieve the 10% to 15% range of tongue
weight as a percentage of total trailer weight).
Towing Requirements – Tires
• Do not attempt to tow a trailer with less than the full
size spare tire.
• Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting and Oper-
ating” for proper tire inflation procedures.
• Check the trailer tires for proper tire inflation pres-
sures before trailer usage.352 STARTING AND OPERATING

WARNING!Any work done to the vehicle’s electrical system or
wiring should be performed by a qualified automo-
tive technician. If done improperly it may cause
damage to the electrical system wiring and could
result in serious or fatal injury.
Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer up in an area away from heavy
traffic.
Automatic Transmission
The “DRIVE” range can be selected when towing. How-
ever, if frequent shifting occurs while in this range, select
“TOW/HAUL” mode or select a lower gear using the
Electronic Range Select (ERS) feature. NOTE: Using “TOW/HAUL” mode or a lower gear
range while operating the vehicle under heavy operating
conditions will improve performance and extend trans-
mission life by reducing excessive shifting and heat build
up. This action will also provide better engine braking.
The automatic transmission fluid and filter should be
changed if you regularly tow a trailer for more than
45 minutes of continuous operation. Refer to “Mainte-
nance Schedule” for the proper maintenance intervals.
NOTE: Check the automatic transmission fluid level
before towing.
Tow/Haul
To reduce potential for automatic transmission overheat-
ing, turn the “TOW/HAUL” feature ON when driving in
hilly areas, or select a lower gear range (using the
Electronic Range Select (ERS) feature) on more severe
grades.360 STARTING AND OPERATING

Electronic Speed Control – If Equipped
Do not use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase engine idle speed.
Highway Driving
Reduce speed. Air Conditioning
Turn off temporarily.
SNOWPLOW
Snowplow Prep Packages are available as a factory
installed option. These packages include components
necessary to equip your vehicle with a snowplow.
NOTE: Before installation of a snowplow it is highly
recommended that the owner/installer obtain and follow
the recommendations contained within the current
Dodge Body Builders Guide. See your authorized dealer,
installer or snowplow manufacturer for this information.
There are unique electrical systems that must be con-
nected to properly assure operator safety and prevent
overloading vehicle systems.
5 STARTING AND OPERATING 361

NOTE: During snowplow usage on vehicles equipped
with outside temperature display, the display may show
higher temperatures than the outside ambient tempera-
ture. The higher displayed temperature is due to blocked
or reduced airflow to the underhood ambient tempera-
ture sensor caused by the snowplow. In addition, on
vehicles equipped with Automatic Temperature Control
(ATC), it is suggested that the interior cabin temperature
be manually controlled should the system not perform as
desired while in automatic mode. Both the outside tem-
perature display and ATC operation will return to nor-
mal when the snowplow is removed.
General Maintenance
Snowplows should be maintained in accordance with the
plow manufacturer’s instructions.
Keep all snowplow electrical connections and battery
terminals clean and free of corrosion. When plowing snow, to avoid transmission and drive-
train damage, the following precautions should be ob-
served.
• Operate with transfer case in 4L when plowing small
or congested areas where speeds are not likely to
exceed 15 mph (24 km/h). At higher speeds operate in
4H.
• Vehicles with automatic transmissions should use 4L
range when plowing deep or heavy snow for extended
periods of time to avoid transmission overheating.
• Do not shift the transmission unless the engine has
returned to idle and wheels have stopped. Make a
practice of stepping on the brake pedal before shifting
the transmission.364 STARTING AND OPERATING

RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing Condition Wheels OFF The
Ground Two-Wheel Drive
Models Four-Wheel Drive Models
Flat Tow NONE NOT ALLOWED See Instructions
• Transmission in PARK
• Transfer case in NEUTRAL (N)
• Tow in forward direction
Dolly Tow Front NOT ALLOWED NOT ALLOWED
Rear OK NOT ALLOWED
On Trailer ALL OK OK
5 STARTING AND OPERATING 365

Recreational Towing – Two-Wheel Drive Models
DO NOT flat tow this vehicle. Damage to the drivetrain
will result.
Recreational towing (for two-wheel drive models) is
allowed ONLY if the rear wheels are OFF the ground.
This may be accomplished using a tow dolly or vehicle
trailer. If using a tow dolly, follow this procedure:
1. Properly secure the dolly to the tow vehicle, following
the dolly manufacturer’s instructions.
2. Drive the rear wheels onto the tow dolly.
3. Firmly set the parking brake. Place the transmission in
PARK.
4. Properly secure the rear wheels to the dolly, following
the dolly manufacturer’s instructions. 5. Remove the key fob from the ignition switch.
6. Install a suitable clamping device, designed for tow-
ing, to secure the front wheels in the straight position.
CAUTION!• Towing with the rear wheels on the ground will
cause severe transmission damage. Damage from
improper towing is not covered under the New
Vehicle Limited Warranty.
• Do not disconnect the driveshaft because fluid
may leak from the transmission, causing damage
to internal parts.366 STARTING AND OPERATING

Recreational Towing – Four-Wheel Drive Models
NOTE: Both the manual shift and electronic shift trans-
fer cases must be shifted into NEUTRAL (N) for recre-
ational towing. Automatic transmissions must be shifted
into PARK for recreational towing. Refer to the following
for the proper transfer case NEUTRAL (N) shifting
procedure for your vehicle.
CAUTION!• Front or rear wheel lifts should not be used.
Internal damage to the transmission or transfer
case will occur if a front or rear wheel lift is used
when recreational towing.
• Tow only in the forward direction. Towing this
vehicle backwards can cause severe damage to the
transfer case.
(Continued) CAUTION! (Continued)• Automatic transmissions must be placed in the
PARK position for recreational towing.
• Before recreational towing, perform the procedure
outlined under “Shifting Into NEUTRAL (N)” to
be certain that the transfer case is fully in NEU-
TRAL (N). Otherwise, internal damage will result.
• Towing this vehicle in violation of the above
requirements can cause severe transmission and/or
transfer case damage. Damage from improper tow-
ing is not covered under the New Vehicle Limited
Warranty.
• Do not disconnect the rear driveshaft because
fluid will leak from the transfer case, causing
damage to internal parts.
• Do not use a bumper-mounted clamp-on tow bar
on your vehicle. The bumper face bar will be
damaged.
5 STARTING AND OPERATING 367

Shifting Into NEUTRAL (N) – Manual Shift
Transfer Case (If Equipped)
Use the following procedure to prepare your vehicle for
recreational towing.
WARNING!You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL (N) position without first fully engaging
the parking brake. The transfer case NEUTRAL (N)
position disengages both the front and rear drive-
shafts from the powertrain and will allow the vehicle
to move, even if the transmission is in PARK. The
parking brake should always be applied when the
driver is not in the vehicle. CAUTION!It is necessary to follow these steps to be certain that
the transfer case is fully in NEUTRAL (N) before
recreational towing to prevent damage to internal
parts.
1. Bring the vehicle to a complete stop.
2. Turn OFF the engine.
3. Press and hold the brake pedal.
4. Shift the transmission into NEUTRAL.
5. Shift the transfer case lever into NEUTRAL (N).
6. Start the engine.
7. Shift the transmission into REVERSE.
8. Release the brake pedal for five seconds and ensure
that there is no vehicle movement.368 STARTING AND OPERATING

9. Repeat steps 7 and 8 with transmission in DRIVE.
10. Turn OFF the engine.
11. Firmly apply the parking brake.
12. Shift the transmission into PARK.
CAUTION!Damage to the transmission may occur if the trans-
mission is shifted into PARK with the transfer case in
NEUTRAL (N) and the engine running. With the
transfer case in NEUTRAL (N) ensure that the engine
is OFF prior to shifting the transmission into PARK.
13. Remove the key fob from the ignition switch.
14. Attach the vehicle to the tow vehicle using a suitable
tow bar.
15. Release the parking brake. Shifting Out Of NEUTRAL (N) – Manual Shift
Transfer Case (If Equipped)
Use the following procedure to prepare your vehicle for
normal usage.
1. Bring the vehicle to a complete stop, leaving it con-
nected to the tow vehicle.
2. Firmly apply the parking brake.
3. Turn the ignition switch to the ON/RUN position, but
do not start the engine.
4. Press and hold the brake pedal.
5. Shift the transmission into NEUTRAL.
6. Shift the transfer case lever to the desired position.
NOTE: When shifting out of transfer case NEUTRAL
(N), turning the engine OFF may be required to avoid
gear clash.
5 STARTING AND OPERATING 369

7. Shift the transmission into PARK.
8. Release the brake pedal.
9. Disconnect vehicle from the tow vehicle.
10. Start the engine.
11. Press and hold the brake pedal.
12. Release the parking brake.
13. Shift the transmission into gear, release the brake
pedal, and check that the vehicle operates normally. Shifting Into NEUTRAL – Electronic Shift Transfer
Case (If Equipped)
Use the following procedure to prepare your vehicle for
recreational towing:
WARNING!You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move,
even if the transmission is in PARK. The parking
brake should always be applied when the driver is
not in the vehicle.370 STARTING AND OPERATING