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FUEL SAVER TECHNOLOGY 5.7L ENGINE ONLY
– IF EQUIPPED ....................... .464
PARKING BRAKE ..................... .464
BRAKE SYSTEM ...................... .467
▫ 3500 Dual Rear Wheel Models Only ........467
ELECTRONIC BRAKE CONTROL SYSTEM . . . .467
▫ Anti-Lock Brake System (ABS) ............467
▫ Traction Control System (TCS) – If Equipped . .468
▫ Brake Assist System (BAS) – If Equipped . . . .469
▫ Hill Start Assist (HSA) – If Equipped ........469
▫ Electronic Stability Control (ESC) –
If Equipped ........................ .473
▫ ESC Activation/Malfunction Indicator Light And
ESC OFF Indicator Light ................477 ▫
Trailer Sway Control (TSC) – If Equipped . . . .478
TIRE SAFETY INFORMATION .............479
▫ Tire Markings ....................... .479
▫ Tire Identification Number (TIN) ...........483
▫ Tire Terminology And Definitions ..........484
▫ Tire Loading And Tire Pressure ...........485
TIRES — GENERAL INFORMATION .........490
▫ Tire Pressure ....................... .490
▫ Tire Inflation Pressures .................491
▫ Tire Pressures For High Speed Operation . . . .493
▫ Radial Ply Tires ..................... .493
▫ All Season Tires – If Equipped ............493
▫ Summer Or Three Season Tires – If Equipped. .494
338 STARTING AND OPERATING
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If for some reason the power assist is interrupted, it will
still be possible to steer your vehicle. Under these condi-
tions, you will observe a substantial increase in steering
effort, especially at very low vehicle speeds and during
parking maneuvers.
NOTE:
•Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that
there is a problem with the power steering system.
• Upon initial start-up in cold weather, the power steer-
ing pump may make noise for a short amount of time.
This is due to the cold, thick fluid in the steering
system. This noise should be considered normal, and it
does not in any way damage the steering system.WARNING!
Continued operation with reduced power steering
assist could pose a safety risk to yourself and others.
Service should be obtained as soon as possible.
CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
466 STARTING AND OPERATING
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WARNING!(Continued)
•Be sure the parking brake is fully disengaged
before driving; failure to do so can lead to brake
failure and a collision.
• Always fully apply the parking brake when leav-
ing your vehicle or it may roll and cause damage or
injury. Also, be certain to leave the transmission in
PARK. Failure to do so may cause the vehicle to roll
and cause damage or injury.
CAUTION!
If the Brake System Warning Light remains on with
the parking brake released, a brake system malfunc-
tion is indicated. Have the brake system serviced by
an authorized dealer immediately.
BRAKE SYSTEM
If power assist is lost for any reason (for example,
repeated brake applications with the engine off), the
brakes will still function. However, you will experience a
substantial increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses normal
braking capability, the remaining system will still func-
tion with some loss of overall braking effectiveness. This
will be evident by increased pedal travel during applica-
tion, greater pedal force required to slow or stop, and
activation of the “Brake Warning Light” and the “ABS
Warning Light” (if equipped) during brake use.
3500 Dual Rear Wheel Models Only
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
system. You may experience some clicking or hissing
noises from the hydro-boost system during hard braking
conditions.
5
STARTING AND OPERATING 469
Page 481 of 734

NOTE:The “ESC OFF” message will display and the
audible chime will sound when the shift lever is placed
into the PARK position from any other position and then
moved out of the PARK position. This will occur even if
the message was previously cleared.
In this mode, ESC and TCS except for the “limited slip”
feature described in the TCS section are turned off until
the vehicle reaches a speed of 40 mph (64 km/h). At
40 mph (64 km/h) the system returns to “Partial Off”
mode, described above. When the vehicle speed drops
below 35 mph (56 km/h) the ESC system shuts off. ESC
is off at low vehicle speeds so that it will not interfere
with off-road driving but ESC function returns to provide
the stability feature at speeds above 40 mph (64 km/h).
The “ESC Off Indicator Light” will always be illuminated
when ESC is off. To turn ESC on again, momentarily
press the “ESC Off” switch. This will restore the normal
“ESC On” mode of operation. “ESC Off” is the only operating mode for ESC in 4WD
LOW. Whenever the vehicle is started in 4WD LOW or
the transfer case (if equipped) is shifted from 4WD LOCK
or NEUTRAL, to 4WD LOW, the ESC system will be in
this mode.
WARNING!
In the ESC
Full Offmode, the engine torque reduc-
tion and stability features are disabled. Therefore,
the enhanced vehicle stability offered by ESC is
unavailable. In an emergency evasive maneuver the
ESC system will not engage to assist in maintaining
stability. “ESC Off” mode is intended for off-
highway or off-road use only.
5
STARTING AND OPERATING 479
Page 526 of 734

blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. MMT is prohibited in Federal
and California reformulated gasoline.
Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and they would result in additional cost.
Therefore, you should not have to add anything to the
fuel.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your vehicle’s
performance:
•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine perfor-
mance and damage the emissions control system.
• An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune
or malfunctioning and may require immediate ser-
vice. Contact your authorized dealer for service
assistance.
(Continued)
524 STARTING AND OPERATING
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Cavity Car-tridgeFuse Micro
Fuse Description
F88 15 Amp
Blue Instrument Panel
Cluster
F90/F91 20 Amp
Yellow Power Outlet (Rear
seats) Customer Selectable
F93 20 Amp
Yellow Cigar Lighter
F94 10 Amp
Red Shifter / Transfer
Case Module
F95 10 Amp
Red Rear Camera /
Park Assist
F96 10 Amp
Red Rear Seat Heater
SwitchCavity Car- tridgeFuse Micro
Fuse Description
F97 25 Amp
Natural Rear Heated Seats
& Heated Steering Wheel – IfEquipped
F98 25 Amp
Natural Front Heated Seats
– If Equipped
F99 10 Amp
Red Climate Control
F101 15 Amp
Blue Electrochromatic
Mirror / Smart
High Beams – If Equipped
F104 20 Amp
Yellow Power Outlets (In-
strument Panel/Center Console)
7
MAINTAINING YOUR VEHICLE 677
Page 717 of 734

Fluid Level Check...................... .658
Fluid Type ........................... .658
Shifting ............................. .364
Special Additives ...................... .659
Axle Fluid ............................. .656
Axle Lubrication (Axle Fluid) .................656
Back-Up Camera ......................... .193
Bar, Stabilizer/Sway System ..................419
Battery ................................ .641
Keyless Transmitter Replacement (RKE) ........30
Belts, Seat ...............................51
Body Builders Guide ........................6
Body Mechanism Lubrication .................643
B-Pillar Location ......................... .488
Brake Assist System ...................... .471
Brake Control System, Electronic ..............470
Brake Fluid ............................ .654Brake System
........................... .469
Anti-Lock (ABS) ....................... .470
Fluid Check .......................... .654
Master Cylinder ....................... .654
Parking ............................. .467
Warning Light ........................ .259
Brake/Transmission Interlock .................354
Bulb Replacement ........................ .678
Bulbs, Light ............................ .124
Cab Top Clearance Lights ...................686
Camera, Rear ........................... .193
Camper ............................... .245
Capacities, Fluid ......................... .689
Caps, Filler Oil (Engine) .......................... .639
Radiator (Coolant Pressure) ................650
Carbon Monoxide Warning ..................121
10
INDEX 715