Page 616 of 916

If the Steering icon is displayed and the “SERVICE
POWER STEERING – ASSIST OFF” message is displayed
the EVIC/DID screen, they indicate the vehicle needs to
be taken to the dealer for service. Refer to “Electronic
Vehicle Information Center (EVIC) or Driver Information
Display (DID)” in “Understanding Your Instrument
Panel” for further information.
NOTE:
•Even if the power steering assistance is no longer
operational, it is still possible to steer the vehicle.
Under these conditions there will be a substantial
increase in steering effort, especially at low speeds and
during parking maneuvers.
•If the condition persists, see your authorized dealer for
service.Hydraulic Power Steering — 2500/3500 Models
The standard power steering system will give you good
vehicle response and increased ease of maneuverability
in tight spaces. The system will provide mechanical
steering capability if power assist is lost.
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
614 STARTING AND OPERATING
Page 620 of 916

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.
Hydraulic Brake Assist — 2500/3500 Models Only
(Except Power Wagon)
The brake system power assist is provided by a hydro-
boost unit which shares fluid with the power steering
618 STARTING AND OPERATING
Page 625 of 916

the brake while stopped on an incline, HSA will continue
to hold the brake pressure for a short period. If the driver
does not apply the throttle before this time expires, the
system will release brake pressure and the vehicle will
roll down the hill as normal.
The following conditions must be met in order for HSA to
activate:
•The feature must be enabled.
•The vehicle must be stopped.
•Park brake must be off.
•Driver door must be closed.
•The vehicle must be on a sufficient grade.
•The gear selection must match vehicle uphill direction
(i.e., vehicle facing uphill is in forward gear; vehicle
backing uphill is in REVERSE gear).•HSA will work in REVERSE gear and all forward
gears. The system will not activate if the transmission
is in PARK or NEUTRAL. For vehicles equipped with
a manual transmission if the clutch is pressed HSA will
remain active.
WARNING!
There may be situations where the Hill Start Assist
(HSA) will not activate and slight rolling may occur,
such as on minor hills or with a loaded vehicle, or
while pulling a trailer. HSA is not a substitute for
active driving involvement. It is always the driver ’s
responsibility to be attentive to distance to other
vehicles, people, and objects, and most importantly
brake operation to ensure safe operation of the ve-
hicle under all road conditions. Your complete atten-
tion is always required while driving to maintain
(Continued)
5
STARTING AND OPERATING 623
Page 626 of 916

WARNING!(Continued)
safe control of your vehicle. Failure to follow these
warnings can result in a collision or serious personal
injury.
Towing With HSA
HSA will also provide assistance to mitigate roll back
while towing a trailer.
WARNING!
•If you use a trailer brake controller with your
trailer, the trailer brakes may be activated and
deactivated with the brake switch. If so, there may
not be enough brake pressure to hold both the
vehicle and the trailer on a hill when the brake
pedal is released. In order to avoid rolling down an
(Continued)
WARNING!(Continued)
incline while resuming acceleration, manually ac-
tivate the trailer brake or apply more vehicle brake
pressure prior to releasing the brake pedal.
•HSA is not a parking brake. Always apply the
parking brake fully when leaving your vehicle.
Also, be certain to leave the transmission in PARK.
•Failure to follow these warnings can result in a
collision or serious personal injury.
Disabling And Enabling HSA
This feature can be turned on or turned off. To change the
current setting, proceed as follows:
•For vehicles equipped with the Electronic Vehicle
Information Center (EVIC) or Driver Information Dis-
play (DID), refer to “Electronic Vehicle Information
624 STARTING AND OPERATING
Page 681 of 916

CAUTION!(Continued)
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.
•The use of fuel additives, which are now being
sold as octane enhancers, is not recommended.
Most of these products contain high concentrations
of methanol. Fuel system damage or vehicle perfor-
mance problems resulting from the use of such
fuels or additives is not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
NOTE:Intentional tampering with the emissions control
system can result in civil penalties being assessed against
you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as
a garage, and never sit in a parked vehicle with the
engine running for an extended period. If the
vehicle is stopped in an open area with the engine
running for more than a short period, adjust the
ventilation system to force fresh, outside air into
the vehicle.
•Guard against carbon monoxide with proper main-
tenance. Have the exhaust system inspected every
(Continued)
5
STARTING AND OPERATING 679
Page 848 of 916
Cavity Cartridge Fuse Micro Fuse Description
F80 – 10 Amp Red Universal Garage Door Opener / Compass
F81 – 20 Amp Yellow Trailer Tow Right Turn / Stop Lights
F82 – 10 Amp Red Steering Column Control Module / Cruise Con-
trol
F84 – 15 Amp Blue Switch Bank / Instrument Cluster
F85 – 10 Amp Red Airbag Module
F86 – 10 Amp Red Airbag Module
F87 – 10 Amp Red Air Suspension – If Equipped / Trailer Tow /
Steering Column Control Module
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 Switch
846 MAINTAINING YOUR VEHICLE
Page 895 of 916

Disposal..............................819
Anti-Lock Brake System (ABS)................620
Appearance Care.........................830
Ashtray................................237
Assist, Hill Start..........................622
Auto Down Power Windows..................49
Automatic Door Locks......................41
Automatic Headlights......................173
Automatic High Beams.....................175
Automatic Temperature Control (ATC)..........440
Automatic Transmission.................490, 830
Adding Fluid.......................829, 830
Fluid And Filter Changes..................830
Fluid Change..........................830
Fluid Level Check................826, 827, 828
Fluid Type.........................826, 867
Shifting...........................499, 511
Special Additives.......................827
Axle Fluid...........................825, 867Axle Lubrication..........................825
Back-Up Camera..........................214
Bar, Stabilizer/Sway System..................567
Battery.............................304, 804
Charging System Light...................304
Keyless Transmitter Replacement (RKE)........31
Belts, Seat...............................119
Body Builders Guide........................6
Body Mechanism Lubrication.................807
B-Pillar Location..........................642
Brake Assist System.......................622
Brake Control System, Electronic..............619
Brake Fluid..........................823, 867
Brake System.........................618, 823
Fluid Check...........................823
Master Cylinder........................823
Parking
..............................616
Warning Light.........................300
10
INDEX 893
Page 903 of 916

Keys...................................12
Key, Sentry (Immobilizer)....................19
Lane Change And Turn Signals...............183
Lane Change Assist........................184
Lap/Shoulder Belts.........................55
Latches................................121
Lead Free Gasoline........................674
Leaks, Fluid.............................121
Life Of Tires.............................657
Light Bulbs..........................121, 849
Lights..............................121, 171
AirBag ........................80, 119, 299
Automatic Headlights....................173
Brake Assist Warning....................630
Brake Warning.........................300
Bulb Replacement.......................850
Cap Top Clearance......................857
Cargo ...............................182Center Mounted Stop....................855
Courtesy/Reading................180, 182, 217
Cruise............................330, 332
Daytime Running.......................174
Engine Temperature Warning...............303
Exterior..............................121
Fog ..........................178, 320, 853
Four-Wheel Drive Indicator................526
Hazard Warning Flasher..................725
Headlights............................173
High Beam............................184
High Beam/Low Beam Select...............184
Hill Descent Control Indicator..............632
Illuminated Entry........................24
Interior....................179, 180, 182, 217
Low Fuel.............................317
Malfunction Indicator (Check Engine).........310
Park.............................328, 330
Passing..............................184
10
INDEX 901