2008 DODGE RAM 5500 CHASSIS CAB lock

4L
4-Wheel-Drive Low Range - Low speed 4-wheel-drive.
Locks the front and rear driveshafts together. Forces the
front and rear wheels to rotate at the same speed.
Additional traction and maximum pulling power for
loose, slippery road surfaces only. Do not exceed 25 mph
(40 km/h).Vehicle's equipped with the AISIN
(AS68RC) Automatic Transmission, Overdrive gear (5th
and 6th) will be disabled when the transfer case is in
4L.
Shifting Procedure Ð Manually Shifted Transfer
Case
2H,4H
Shifting between 2H and 4H can be made with the
vehicle stopped or in motion. If the vehicle is in motion,
shifts can be made up to 55 mph (88 km/h). With the
Manual Transfer Case Shifter
292 STARTING AND OPERATING

Electronically Shifted Transfer Case Operating
Information/Precautions (4 Position Switch) Ð If
Equipped
This is an electric shift transfer case and is operated by
the 4WD Control Switch (Transfer Case Switch), which is
located on the instrument panel.This Electronically Shifted transfer case provides 4 mode
positions: 2 (rear) wheel drive high range, 4 wheel drive
lock range, 4 wheel drive low range, and neutral.
The Electronically Shifted transfer case is designed to be
driven in the 2 wheel drive position (2WD) for normal
street and highway conditions (dry hard surfaced roads).
When additional traction is required, the transfer case
4WD LOCK and 4WD LOW positions can be used to lock
the front and rear driveshafts together and force the front
and rear wheels to rotate at the same speed. This is
accomplished by rotating the 4WD Control Switch to the
desired position - see Shifting Procedure section for
specific shifting instructions. The 4WD LOCK and 4WD
LOW positions are designed for loose, slippery road
surfaces only. Driving in the 4WD LOCK and 4WD LOW
positions on dry hard surfaced roads may cause in-
creased tire wear and damage to the driveline compo-
nents.
Transfer Case Switch
294 STARTING AND OPERATING

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.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 driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
For additional information on the appropriate use of each
transfer case mode position see the information below:
2WD
Rear Wheel Drive High Range - Normal street and
highway driving. Dry hard surfaced roads.
STARTING AND OPERATING 297
5

4WD LOCK
4 Wheel Drive Lock Range - Locks the front and rear
driveshafts together. Forces the front and rear wheels to
rotate at the same speed. Additional traction for loose,
slippery road surfaces only.
4WD LOW
4 Wheel Drive Low Range - Low speed 4 wheel drive.
Locks the front and rear driveshafts together. Forces the
front and rear wheels to rotate at the same speed.
Additional traction and maximum pulling power for
loose, slippery road surfaces only. Do not exceed 25 mph
(40 km/h).
N
Neutral - Disengages both the front and rear driveshafts
from the powertrain. To be used for flat towing behind
another vehicle. See Recreational Towing for more infor-
mation.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 indicator
Transfer Case Switch
298 STARTING AND OPERATING

light 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 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, theignition 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.
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:
STARTING AND OPERATING 299
5

CAUTION!
²Always check the depth of the standing water before
driving through it. Never drive through standing water
that is deeper than the bottom of the tire rims mounted
on the vehicle.
²Determine the condition of the road or the path that is
under water and if there are any obstacles in the way
before driving through the standing water.
²Do not exceed 5 mph (8 km/h) when driving through
standing water. This will minimize wave effects.
²Driving through standing water may cause damage to
your vehicle's drivetrain components. Always inspect
your vehicle's fluids (i.e. engine oil, transmission, axle,
etc.) for signs of contamination (i.e. fluid that is milky or
foamy in appearance) after driving through standing
water. Do not continue to operate the vehicle if any fluid
appears contaminated, as this may result in further
damage. Such damage is not covered by the new vehicle
limited warranty.
²Getting water inside your vehicle's engine can cause it to
lockup and stall out and cause serious internal damage to
the engine. Such damage is not covered by the new
vehicle limited warranty.
WARNING!
²Driving through standing water limits your vehi-
cle's traction capabilities. Do not exceed 5 mph (8
km/h) when driving through standing water.
²Driving through standing water limits your vehi-
cle's braking capabilities, which increases stop-
ping distances. Therefore, after driving through
standing water, drive slowly and lightly press on
the brake pedal several times to dry the brakes.
²Getting water inside your vehicle's engine can
cause it to lockup and stall out and leave you
stranded.
²Failure to follow these warnings may result in
injuries that are serious or fatal to you, your
passengers, and others around you.
306 STARTING AND OPERATING

PARKING BRAKE
The foot operated parking brake is positioned below the
lower left corner of the instrument panel. To release the
parking brake, pull the parking brake release handle.
NOTE:The instrument cluster red brake warning light
will come on and flash to indicate that the parking brake
is applied. You must be sure that the parking brake is
fully applied before leaving the vehicle.
Be sure the parking brake is firmly set when parked and
the gear shift lever is in the PARK position. When
parking on a hill you should apply the parking brake
before placing the gear shift lever in PARK, otherwise the
load on the transmission locking mechanism may make it
difficult to move the selector out of PARK.
Parking Brake Release
308 STARTING AND OPERATING

Brake Noise
During normal operation of the brake system certain
noises may be present from time to time. Occasional
9groan9or9squeal9noises may occur during normal
operation of the brake system which may not be indica-
tive of a problem. These noises may be heard at any time
the brakes are applied but may be more noticeable during
the first few brake applications in the morning. Moisture,
hot or cold temperature, dust, and or other debris may
also contribute to the noise condition. Repeated or con-
tinuous noises during braking may be an indication that
the brake linings are worn and in need of replacement.
Four-Wheel Anti-Lock Brake System
WARNING!
Anti-Lock Brake Systems contain sophisticated elec-
tronic equipment. It may be susceptible to interfer-
ence caused by improperly installed or high output
radio transmitting equipment. This interference can
cause possible loss of anti-lock braking capability.
Installation of such equipment should be performed
by qualified professionals.
310 STARTING AND OPERATING