2008 DODGE RAM 2500 GAS stop start

Shifting Procedure Ð Electronically Shifted
Transfer Case
NOTE:If any of the requirements to select a new
transfer case position have not been met, the transfer case
will not shift. The indicator light for the previous position
will remain ON and the newly selected position indicatorlight will continue to flash until all the requirements for
the selected position have been met. To retry a shift:
return the control knob back to the original position,
make certain all shift requirements have been met, wait
five (5) seconds and try the shift again.
NOTE:If all the requirements to select a new transfer
case position have been met, the current position indica-
tor light will turn OFF, the selected position indicator
light will flash until the transfer case completes the shift.
When the shift is complete, the indicator light for the
selected position will stop flashing and remain ON.
2WD,4WD AUTO or 4WD LOCK
Rotate the 4WD Control Switch to the desired position.
Shifts between 2WD and 4WD AUTO and 4WD LOCK
can be done with the vehicle stopped or in motion. With
the vehicle in motion, the transfer case will engage/
disengage faster if you momentarily release the accelera-
tor pedal after turning the control switch. If the vehicle is
5 Position Switch
304 STARTING AND OPERATING

stopped, the ignition key must be in the ON position with
the engine either RUNNING or OFF. This shift cannot be
completed if the key is in the accessory position.
2WD or 4 AUTO or 4 LOCK,4WD LOW
NOTE:When shifting into or out of 4WD LOW some
gear noise may be heard. This noise is normal and is not
detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling 2 to 3
mph (3 to 5 km/h) or completely stopped. USE EITHER
OF THE FOLLOWING PROCEDURES:
Preferred Procedure
1. With engine RUNNING, slow vehicle to 2 to 3 mph (3
to 5 km/h).
2. Shift the transmission into NEUTRAL (depress clutch
on manual transmissions).3. While still rolling, rotate the transfer case control
switch to the desired position.
4. After the desired position indicator light is ON (not
flashing), shift transmission back into gear (release clutch
on manual transmissions).
Alternate Procedure
1. Bring the vehicle to complete stop.
2. With the key ON and the engine either OFF or
RUNNING, shift the transmission into NEUTRAL (de-
press clutch on manual transmissions).
3. Rotate the transfer case control switch to the desired
position.
STARTING AND OPERATING 305
5

Transfer Case Position Indicator Lights Ð
Electronically Shifted Transfer Case Only
Transfer case position indicator lights are located in the
instrument cluster and indicate the current and desired
transfer case selection. When you select a different trans-
fer case position, the indicator lights will do the follow-
ing:
If All Shift Conditions Are Met:
1. The current position indicator light will turn OFF.
2. The selected position indicator light will flash until the
transfer case completes the shift.
3. When the shift is complete, the indicator light for the
selected position will stop flashing and remain ON.
If One or More Shift Conditions Are Not Met:
1. The indicator light for the current position will remain
ON.2. The newly selected position indicator light will con-
tinue to flash.
3. The transfer casewill notshift.
NOTE:Before retrying a selection, make certain that all
the necessary requirements for selecting a new transfer
case position have been met. To retry the selection, turn
the control knob back to the current position, wait five
seconds, and retry selection. To find the shift require-
ments, refer to the9Shifting Procedure9for your transfer
case, located in this section of the owner's manual.
The ªSERVICE 4WDº warning light monitors the electric
shift 4WD system. If this light remains on after engine
start up or illuminates during driving, it means that the
4WD system is not functioning properly and that service
is required.
308 STARTING AND OPERATING

WARNING!
Always engage the parking brake when powering
down the vehicle if the(SERVICE 4WD(light is
illuminated. Not engaging the parking brake may
allow the vehicle to roll, which may cause personal
injury.
NOTE:Do not attempt to make a shift while only the
front or rear wheels are spinning, as this can cause
damage to driveline components.When operating your vehicle in 4WD LOW, the engine
speed is approximately three times that of the 2WD or
4WD LOCK positions at a given road speed. Take care
not to overspeed the engine and do not exceed 25 mph
(40 km/h).
Proper operation of 4-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference in tire size can cause damage to the
transfer case.
Because 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit.
STARTING AND OPERATING 309
5

Shifting Procedure Ð Electronically Shifted
Transfer Case
NOTE:If any of the requirements to select a new
transfer case position have not been met, the transfer case
will not shift. The indicator light for the previous position
will remain ON and the newly selected position indicatorlight will continue to flash until all the requirements for
the selected position have been met. To retry a shift:
return the control knob back to the original position,
make certain all shift requirements have been met, wait
five seconds and try the shift again.
NOTE:If all the requirements to select a new transfer
case position have been met, the current position indica-
tor light will turn OFF, the selected position indicator
light will flash until the transfer case completes the shift.
When the shift is complete, the indicator light for the
selected position will stop flashing and remain ON.
2WD,4WD LOCK
Rotate the 4WD control switch to the desired position.
Shifts between 2WD and 4WD LOCK can be done with
the vehicle stopped or in motion. With the vehicle in
motion, the transfer case will engage/disengage faster if
you momentarily release the accelerator pedal after turn-
ing the control switch. If the vehicle is stopped, the
Transfer Case Switch
STARTING AND OPERATING 311
5

ignition key must be in the ON position with the engine
either running or off. This shift cannot be completed if the
key is in the ACC position.
NOTE:The 4x4 system will not allow shifts between
2WD/4WD LOCK if the front and/or rear wheels are
spinning (no traction). In this situation the selected
position indicator light will flash and the original posi-
tion indicator light will remain ON. At this time, reduce
speed and stop spinning the wheels to complete the shift.
2WD or 4WD LOCK,4WD LOW
NOTE:When shifting into or out of 4WD LOW some
gear noise may be heard. This noise is normal and is not
detrimental to the vehicle or occupants.Shifting can be performed with the vehicle rolling 2 to 3
mph (3 to 5 km/h) or completely stopped. USE EITHER
OF THE FOLLOWING PROCEDURES:
Preferred Procedure
1. With engine running, slow vehicle to 2 to 3 mph (3 to
5 km/h).
2. Shift the transmission into NEUTRAL (depress clutch
on manual transmissions).
3. While still rolling, rotate the transfer case control
switch to the desired position.
4. After the desired position indicator light is ON (not
flashing), shift transmission back into gear (release clutch
on manual transmissions).
312 STARTING AND OPERATING

Alternate Procedure
1. Bring the vehicle to complete stop.
2. With the key ON and the engine either OFF or
running, shift the transmission into NEUTRAL (depress
clutch on manual transmissions).
3. Rotate the transfer case control switch to the desired
position.
4. After the desired position indicator light is ON (not
flashing), shift transmission back into gear (release clutch
on manual transmissions).
NOTE:If steps 1 or 2 of either the Preferred or Alternate
Procedure are not satisfied prior to attempting the shift
then the desired position indicator light will flash con-
tinuously while the original position indicator light is
ON, until all requirements have been met.NOTE:The ignition key must be ON for a shift to take
place and for the position indicator lights to be operable.
If the key is not ON then the shift will not take place and
no position indicator lights will be on or flashing.
NOTE:If your are leaving your vehicle stored for longer
than 21 days, refer to the section on ªVehicle Storage.º
LIMITED-SLIP DIFFERENTIAL ± IF EQUIPPED
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
STARTING AND OPERATING 313
5

slippery surface, a slight application of the accelerator
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 differen-
tial, 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
When driving on wet or slushy roads, it is possible for a
wedge of water to build up between the tire and road
surface. This is known as hydroplaning and may cause
partial or complete loss of vehicle control and stopping
ability. To reduce this possibility, the following precau-
tions should be observed:
1. Slow down during rainstorms or when roads are
slushy.
2. Slow down if road has standing water or puddles.
3. Replace tires when tread wear indicators first become
visible.
4. Keep tires properly inflated.
5. Maintain sufficient distance between your vehicle and
the car in front to avoid a collision in a sudden stop.
314 STARTING AND OPERATING