2014 Ram 1500 Rear differential

Electronic Vehicle Information Center (EVIC)
Display Messages
When the appropriate conditions exist, a message will
appear in the EVIC display. Refer to “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
An audible chime will be heard whenever a system error
has been detected.
Operation
Pushing the Trailer Mode button once, while at Normal
Ride Height (NRH) will lower the vehicle to trailer level.
NOTE:The LED will continuously blink until vehicle
trailer level that been achieved.
Pushing the Trailer Mode again will raise the vehicle to
Normal Ride Height (NRH). NOTE:
The LED will continuously blink until Normal
Ride Height (NRH) has been achieved.
• Transport Mode – No indicator lamps will be illumi-
nated. Transport Mode is disabled by driving the
vehicle.
• Tire/Jack Mode – The LED will be illuminated. Tire/
Jack Mode is disabled by driving the vehicle.
• Wheel Alignment Mode – The LED will be illumi-
nated. Wheel Alignment Mode is disabled by driving
the vehicle.
AXLE LOCKER SYSTEM — POWER WAGON
MODELS ONLY (IF EQUIPPED)
This vehicle is equipped with electronically locking front
and rear differentials. These differentials, when engaged,
mechanically lock together the axle shafts forcing the
wheels to spin at an equal rate. This allows the vehicle to
maintain its momentum and prevents it from becoming
5
STARTING AND OPERATING 469

stuck. The locking front and rear differentials should only
be engaged during low-speed, extreme off-road situa-
tions where one wheel is likely to not be in contact with
the ground. It is not recommended to drive the vehicle
with the differentials locked on pavement due to the
reduced ability to turn and speed limitations.
CAUTION!
•Do not lock the front or rear axle on hard surfaced
roads. The ability to steer the vehicle is reduced
and damage to the drivetrain may occur when the
axles are locked on hard surfaced roads.
• Do not try to lock the rear axle if the vehicle is
stuck and the tires are spinning. You can damage
drivetrain components. Lock the rear axle before
attempting situations or navigating terrain, which
could possibly cause the vehicle to become stuck. The locking axles are controlled by the axle locker switch.
The switch has three positions, AXLE UNLOCK, REAR
LOCK, and FRONT/REAR LOCK. Under normal driv-
ing conditions, the switch should be left in the AXLE
UNLOCK position. In the AXLE UNLOCK position, the
front and rear axles are unlocked. In the REAR LOCK
position, the rear axle is locked. In the FRONT/REAR
LOCK position, the front and rear axles are locked.
NOTE:
Even when the axles are in the AXLE UNLOCK
position, the limited slip differential in the rear axle still
provides torque biasing capability for moderate low
traction environments.
During the command to lock the axle, the indicator light
will flash until the axle is locked. After the lock command
has been successfully executed, the light will remain on
solid.
470 STARTING AND OPERATING

•Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
• After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary. •
If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
LIMITED-SLIP DIFFERENTIAL
The limited-slip differential provides additional traction
on snow, ice, mud, sand and gravel, particularly when
there is a difference between the traction characteristics
of the surface under the right and left rear wheels. During
normal driving and cornering, the limited-slip unit per-
forms similarly to a conventional differential. On slip-
pery surfaces, however, the differential delivers more of
the driving effort to the rear wheel having the better
traction.
The limited-slip differential is especially helpful during
slippery driving conditions. With both rear wheels on a
slippery surface, a slight application of the accelerator
492 STARTING AND OPERATING

will supply maximum traction. When starting with only
one rear wheel on an excessively slippery surface, slight
momentary application of the parking brake may be
necessary to gain maximum traction.
WARNING!
On vehicles equipped with a limited-slip differential
never run the engine with one rear wheel off the
ground since the vehicle may drive through the rear
wheel remaining on the ground. You could lose
control of the vehicle.
Care should be taken to avoid sudden accelerations when
both rear wheels are on a slippery surface. This could
cause both rear wheels to spin, and allow the vehicle to
slide sideways on the crowned surface of a road or in a
turn.
DRIVING ON SLIPPERY SURFACES
Acceleration
Rapid acceleration on snow covered, wet, or other slip-
pery surfaces may cause the driving wheels to pull
erratically to the right or left. This phenomenon occurs
when there is a difference in the surface traction under
the rear (driving) wheels.
WARNING!
Rapid acceleration on slippery surfaces is dangerous.
Unequal traction can cause sudden pulling of the rear
wheels. You could lose control of the vehicle and
possibly have a collision. Accelerate slowly and
carefully whenever there is likely to be poor traction
(ice, snow, wet mud, loose sand, etc.).
5
STARTING AND OPERATING 493

NOTE:The presence of water in the gear lubricant will
result in corrosion and possible failure of differential
components. Operation of the vehicle in water, as may be
encountered in some off-highway types of service, will
require draining and refilling the axle to avoid damage.
Limited-Slip Differentials
1500 Model rear axles equipped with a Limited Slip
Differential require that 5 oz. (148 ml) MOPAR® Limited
Slip Additive be added to the gear lubricant. Refer to
“Fluids, Lubricants, and Genuine Parts” in “Maintaining
Your Vehicle” for further information. The MOPAR®
Limited Slip Additive should be added to the gear
lubricant whenever a fluid change is made to an axle
equipped with a Limited Slip Differential.
2500/3500 Model axles DO NOT REQUIREany limited
slip oil additive (friction modifiers). NOTE:
When refilling an axle with a Limited Slip Differ-
ential, (which requires a Limited Slip Additive), the
Limited Slip Additive should be added before the gear
lubricant is added to insure proper additive fill.
Transfer Case
Drain And Refill
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Lubricant Selection
Refer to “Fluids, Lubricants, and Genuine Parts” in
“Maintaining Your Vehicle” for further information.
Fluid Level Check
This fluid level can be checked by removing the filler
plug. The fluid level should be to the bottom edge of the
filler plug hole with the vehicle in a level position.
720 MAINTAINING YOUR VEHICLE

Cupholders............................ .233
Customer Assistance ...................... .775
Data Recorder, Event .......................82
Daytime Running Lights ....................172
Dealer Service ........................... .695
Defroster, Rear Window .....................244
Defroster, Windshield ..................... .122
Delay (Intermittent) Wipers ..................181
Differential, Limited-Slip ....................492
Dipsticks Power Steering ........................ .520
Disabled Vehicle Towing ....................682
Disposal Antifreeze (Engine Coolant) ................713
Door Locks Door Locks ............................37
KeyFob...............................37
Remote ...............................37 Remote Keyless Entry (RKE)
................37
Door Locks, Automatic ......................39
Door Opener, Garage ...................... .214
Driving Off-Pavement ......................... .474
Off-Road ............................ .474
Through Flowing, Rising, or Shallow Standing
Water ............................... .494
Dual Rear Wheels ........................ .565
E-85 Fuel .............................. .582
Electrical Power Outlets .....................227
Electric Rear Window Defrost .................244
Electronically Shifted Transfer Case .............440
Electronic Brake Control System ...............526
Anti-Lock Brake System ..................527
Brake Assist System .....................528
Traction Control System ...................527
Electronic Range Select (ERS) .................410
10
INDEX 787

Programming Transmitters (Remote Keyless Entry) . .24
Radial Ply Tires......................... .553
Radiator Cap (Coolant Pressure Cap) ...........709
Radio Operation ......................... .360
Rain Sensitive Wiper System .................183
Ramp Travel Index ....................... .475
Rear Axle (Differential) .....................719
Rear Cargo Area Utility Rails .................262
Rear ParkSense System .....................193
Rear Seat, Folding ........................ .157
Rear Window Features .....................244
Rear Window, Sliding ..................... .246
Reclining Rear Seats ...................... .156
Recorder, Event Data .......................82
Recreational Towing ...................... .617
Shifting into Transfer Case Neutral (N) ........620
Shifting out of Transfer Case Neutral (N) ......623
Reformulated Gasoline .....................578 Refrigerant
............................. .703
Reminder, Seat Belt .........................67
Remote Control Starting System .........................33
Remote Keyless Entry (RKE) ..................24
Programming Additional Key Fobs ...........21
Programming Additional Transmitters .........21
Remote Sound System (Radio) Controls .........358
Remote Starting Uconnect® Customer Programmable Features . . .350
Uconnect® Settings ..................... .350
Remote Starting System ......................33
Replacement Bulbs ....................... .743
Replacement Keys .........................20
Replacement Parts ........................ .695
Replacement Tires ........................ .560
Reporting Safety Defects ....................779
Restraint, Head .......................... .160
Restraints, Child ...........................83
796 INDEX