
the electric steering system experiences a fault that
prevents it from providing assist, you will still have the
ability to steer the vehicle manually.
If the Steering icon is flashing, it indicates that the vehicle
needs to be taken to the dealer for service. It is likely the
vehicle has lost power steering assistance.
If the Steering icon is displayed and the “POWER STEER-
ING SYSTEM OVER TEMP” message is displayed on the
EVIC/DID screen, they indicate that extreme steering
maneuvers may have occurred which caused an over
temperature condition in the power steering system.
Once driving conditions are safe, pull over and let the
vehicle idle for a few moments until the icon and
message turn off. Refer to “Electronic Vehicle Information
Center (EVIC) or Driver Information Display (DID)” in
“Understanding Your Instrument Panel” for further in-
formation.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.
614 STARTING AND OPERATING

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 system. This noise should be considered normal, and it
does not in any way damage the steering system.
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.
Power Steering Fluid Check — 2500/3500 Models
Checking the power steering fluid level at a defined
service interval is not required. The fluid should only be
checked if a leak is suspected, abnormal noises are
apparent, and/or the system is not functioning as antici-
pated. Coordinate inspection efforts through an autho-
rized dealer.
5
STARTING AND OPERATING 615

unless braking is no longer desired. Once the brake pedal
is released, the BAS is deactivated.
WARNING!
The Brake Assist System (BAS) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase the traction afforded by prevailing
road conditions. BAS cannot prevent collisions, in-
cluding those resulting from excessive speed in
turns, driving on very slippery surfaces, or hydro-
planing. The capabilities of a BAS-equipped vehicle
must never be exploited in a reckless or dangerous
manner, which could jeopardize the user’s safety or
the safety of others.
Hill Start Assist (HSA)
The HSA system is designed to mitigate roll back from a
complete stop while on an incline. If the driver releasesthe 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).
5
STARTING AND OPERATING 623

•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)
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)
624 STARTING AND OPERATING

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)
680 STARTING AND OPERATING

Cavity Cartridge Fuse Micro FuseDescription
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 Select-
able
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
F97 –25 Amp Clear Rear Heated Seats & Heated Steering Wheel
– If Equipped
F98 –25 Amp Clear Front Heated Seats – If Equipped
F99 –10 Amp Red Climate Control
F100 –10 Amp Red Upfitters – If Equipped
850 MAINTAINING YOUR VEHICLE

Disposal............................. .822
Anti-Lock Brake System (ABS) ................620
Appearance Care ........................ .833
Ashtray ............................... .235
Assist, Hill Start ......................... .623
Auto Down Power Windows ..................49
Automatic Door Locks ......................41
Automatic Headlights ..................... .171
Automatic High Beams .....................174
Automatic Temperature Control (ATC) ..........439
Automatic Transmission .................490, 833
Adding Fluid ...................... .831, 833
Fluid And Filter Changes ..................833
Fluid Change ......................... .833
Fluid Level Check ................829, 830, 831
Fluid Type ........................ .829, 870
Shifting .......................... .499, 511
Special Additives ...................... .830
Axle Fluid .......................... .827, 870Axle Lubrication
......................... .827
Back-Up Camera ......................... .212
Bar, Stabilizer/Sway System ..................568
Battery ............................ .301, 808
Charging System Light ...................301
Keyless Transmitter Replacement (RKE) ........31
Belts, Seat .............................. .120
Body Builders Guide ........................6
Body Mechanism Lubrication .................811
B-Pillar Location ......................... .643
Brake Assist System ...................... .622
Brake Control System, Electronic ..............619
Brake Fluid ......................... .826, 870
Brake System ........................ .619, 825
Fluid Check .......................... .826
Master Cylinder ....................... .826
Parking ............................. .616
W
arning Light ........................ .298
10
INDEX 897

Lane Change Assist....................... .182
Lap/Shoulder Belts .........................56
Latches ............................... .122
Lead Free Gasoline ....................... .675
Leaks, Fluid ............................ .122
Life Of Tires ............................ .658
Light Bulbs ......................... .122, 852
Lights ............................. .122, 170
AirBag ........................82, 120, 297
Automatic Headlights ....................171
Brake Assist Warning ....................630
Brake Warning ........................ .298
Bulb Replacement ...................... .854
Cap Top Clearance ..................... .860
Cargo .............................. .180
Center Mounted Stop ....................858
Courtesy/Reading ................178, 180, 215
Cruise ........................... .327, 329
Daytime Running ...................... .173Engine Temperature Warning
...............300
Exterior ............................. .122
Fog ......................... .176, 317, 856
Four-Wheel Drive Indicator ................526
Hazard Warning Flasher ..................727
Headlights ........................... .171
High Beam ........................... .182
High Beam/Low Beam Select ...............182
Hill Descent Control Indicator ..............632
Illuminated Entry ........................24
Interior ....................177, 178, 180, 215
Low Fuel ............................ .314
Malfunction Indicator (Check Engine) .........307
Park ............................ .325, 327
Passing ............................. .182
Seat Belt Reminder ..................... .296
Security Alarm ........................ .300
Service .......................... .852,
854
Side Marker .......................... .86310
INDEX 905