•Auto-On Driver Heated/Ventilated Seat & Steering
Wheel With Vehicle Start — If Equipped
When this feature is selected the driver’s heated seat and
heated steering wheel will automatically turn on when
temperatures are below 40° F (4.4° C). When tempera-
tures are above 80° F (26.7° C) the driver vented seat will
turn on. To make your selection, touch the Auto Heated
Seats soft-key, until a check-mark appears next to setting,
showing that setting has been selected. Touch the back
arrow soft-key to return to the previous menu.
Engine Off Options
After pressing the Engine Off Options soft-key the fol-
lowing settings will be available.
• Engine Off Power Delay
When this feature is selected, the power window
switches, radio, Uconnect® phone system (if equipped),
DVD video system (if equipped), power sunroof (if equipped), and power outlets will remain active for up to
10 minutes after the ignition is cycled to OFF. Opening
either front door will cancel this feature. To change the
Engine Off Power Delay status touch the 0 seconds, 45
seconds, 5 minutes or 10 minutes soft-key. Then touch the
arrow back soft-key.
•
Headlight Off Delay
When this feature is selected, the driver can choose to
have the headlights remain on for 0, 30, 60, or 90 seconds
when exiting the vehicle. To change the Headlight Off
Delay status touch the + or - soft-key to select your
desired time interval. Touch the back arrow soft-key to
return to the previous menu.
Compass Settings – If Equipped
After pressing the Compass Settings soft-key the follow-
ing settings will be available.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 305
▫Power Steering Fluid Check ..............467
FUEL SAVER TECHNOLOGY 5.7L ENGINE ONLY
– IF EQUIPPED ....................... .468
PARKING BRAKE ..................... .468
BRAKE SYSTEM ...................... .470
▫ Four-Wheel Anti-Lock Brake System ........471
▫ Hydraulic Brake Assist – 2500/3500 Models Only
– Except Power Wagon ..................472
ELECTRONIC BRAKE CONTROL SYSTEM . . . .473
▫ Anti-Lock Brake System (ABS) ............473
▫ Traction Control System (TCS) – If Equipped . .474
▫ Brake Assist System (BAS) – If Equipped . . . .474
▫ Hill Start Assist (HSA) – If Equipped ........475▫
Hill Descent Control (HDC) – If Equipped (Power
Wagon Only) ....................... .479
▫ Electronic Stability Control (ESC) – If
Equipped .......................... .480
▫ ESC Activation/Malfunction Indicator Light
And ESC OFF Indicator Light ............484
▫ Trailer Sway Control (TSC) – If Equipped . . . .485
TIRE SAFETY INFORMATION .............487
▫ Tire Markings ....................... .487
▫ Tire Identification Number (TIN) ...........490
▫ Tire Terminology And Definitions ..........492
▫ Tire Loading And Tire Pressure ...........493
TIRES — GENERAL INFORMATION ........498
▫ Tire Pressure ....................... .498
338 STARTING AND OPERATING
avoid damage to the environment. You should know
your vehicle’s abilities and be able to recover it if
something goes wrong. You should never stop or shut a
vehicle off when crossing deep water unless you ingested
water into the engine air intake. If the engine stalls do not
attempt to restart it. Determine if it has ingested water
first. The key to any crossing is low and slow. You want
to use first gear in 4L (Low Range) and proceed very
slowly with a constant slow speed (3-5 mph [5–8 km/h]
maximum) and light throttle. Keep the vehicle moving;
do not try to accelerate through the crossing. After
crossing any water higher than the bottom of the axle
differentials, you should inspect all of the vehicle fluids
for signs of water ingestion.CAUTION!
Water ingestion into the axles, transmission, transfer
case, engine or vehicle interior can occur if you drive
too fast or through too deep of water. Water can cause
permanent damage to engine, driveline or other
vehicle components and your brakes will be less
effective once wet and/or muddy.
• Before You Cross Any Type Of Water – As you
approach any type of water you need to determine if
you can cross it safely and responsibly. If necessary, get
out and walk through the water or probe it with a
stick. You need to be sure of its depth, approach angle,
current and bottom condition. Be careful of murky or
muddy waters, check for hidden obstacles. Make sure
you will not be intruding on any wildlife and you can
recover the vehicle if necessary. The key to a safe
5
STARTING AND OPERATING 433
•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 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.5
STARTING AND OPERATING 441
NOTE:When shifting out of transfer case NEUTRAL
(N), turning the engine OFF is not required, but may be
helpful to avoid gear clash. With the 8-speed automatic
transmission, the engine must remain running, since
turning the engine OFF will shift the transmission to
PARK (and the transmission must be in NEUTRAL for
the transfer case to shift out of NEUTRAL).
5. Turn the engine OFF. Shift automatic transmission into PARK. On 8-speed transmissions the shifter will auto-
matically select PARK when the engine is turned off.
6. Release the brake pedal (and clutch pedal on a manual transmission).
7. Disconnect vehicle from the tow vehicle.
8. Start the engine.
9. Press and hold the brake pedal.
10. Release the parking brake. 11. Shift the transmission into gear, release the brake
pedal (and clutch pedal on manual transmissions),
and check that the vehicle operates normally.
NOTE: With electronic shift transfer case:
•
Steps 3 and 4 are requirements that must be met prior to
pressing the button to shift out of NEUTRAL (N), and
must continue to be met until the shift has been com-
pleted. If any of these requirements are not met before
pressing the button or are no longer met during the shift,
the NEUTRAL (N) indicator light will flash continuously
until all requirements are met or until the button is
released.
•The ignition switch must be in the ON/RUN position for
a shift to take place and for the position indicator lights to
be operable. If the ignition switch is not in the ON/RUN
position, the shift will not take place and no position
indicator lights will be on or flashing.
• A flashing NEUTRAL (N) position indicator light
indicates that shift requirements have not been met.
5
STARTING AND OPERATING 573
“Understanding Your Instrument Panel” for further in-
formation. Tighten the fuel filler cap properly and press
the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing. Normally, the OBD II system will be ready. The OBD II
system may
notbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.
2. If you crank or start the engine, you will have to start this test over.
3. As soon as you cycle the ignition switch to the ON position, you will see the MIL symbol come on as part
of a normal bulb check.
640 MAINTAINING YOUR VEHICLE
NOTE:If it is necessary to check the transmission below
the operating temperature, the fluid level should be
between the two “COLD” (lower) holes on the dipstick
with the fluid at 60-70°F / 16-21°C. Only use the COLD
region of the dipstick as a rough reference when setting
the fluid level after a transmission service or fluid
change. Re-check the fluid level, and adjust as required,
once the transmission reaches normal operating tempera-
ture.
CAUTION!
If the fluid temperature is below 50°F (10°C) it may
not register on the dipstick. Do not add fluid until
the temperature is elevated enough to produce an
accurate reading. Run the engine at idle, in PARK, to
warm the fluid.
8. Check for leaks. Release the parking brake. NOTE:
To prevent dirt and water from entering the
transmission after checking or replenishing fluid, make
sure that the dipstick cap is properly reseated. It is
normal for the dipstick cap to spring back slightly from
its fully seated position, as long as its seal remains
engaged in the dipstick tube.
Fluid And Filter Changes – Six-Speed
Transmission
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
In addition, change the fluid and filter(s) if the fluid
becomes contaminated (with water, etc.), or if the trans-
mission is disassembled for any reason.
Appearance Care And Protection From Corrosion
Protection Of Body And Paint From Corrosion
Vehicle body care requirements vary according to geo-
graphic locations and usage. Chemicals that make roads
668 MAINTAINING YOUR VEHICLE
•Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering (2500/3500 Models
Only) and automatic transmission (six-speed only) as
needed
• Check function of all interior and exterior lights
Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Inspect automatic transmission fluid if equipped
with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake.
• Inspect engine cooling system protection and
hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
• Lube the front drive shaft fitting (2500/3500 (4x4)
models only). 8
MAINTENANCE SCHEDULES 705