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▫Brake/Transmission Shift Interlock System . . .396
▫ Eight-Speed Automatic Transmission —
If Equipped ........................ .397
▫ Six-Speed Automatic Transmission —
1500 Models Only (If Equipped) ...........406
▫ Six-Speed Automatic Transmission — 2500/3500
Models Only ....................... .418
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ........................ .429
▫
Manually Shifted Transfer Case — If Equipped . .429
▫ Electronically Shifted Transfer Case (Four-Position
Switch) — If Equipped .................433
▫ Electronically Shifted Transfer Case (Five-Position
Switch) — If Equipped .................439 ▫
Electronically Shifted Transfer Case (Five-Position
Switch) — If Equipped .................444
AIR SUSPENSION SYSTEM (1500 MODELS ONLY)
— IF EQUIPPED ...................... .451
▫ Description ......................... .451
▫ Air Suspension Modes ..................455
▫ Electronic Vehicle Information Center (EVIC)
Display Messages .....................456
▫ Operation .......................... .456
AIR SUSPENSION SYSTEM (2500/3500 MODELS
ONLY) — IF EQUIPPED ..................458
▫ Description ......................... .458
▫ Air Suspension Modes ..................459
▫ Electronic Vehicle Information Center (EVIC)
Display Messages .....................461
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AIR SUSPENSION SYSTEM (1500 MODELS ONLY)
— IF EQUIPPED
Description
The air suspension system provides full time load level-
ing capability along with the benefit of being able to
adjust vehicle height by the push of a button.
1 — Up Button
2 — Down Button
3 — Entry/Exit Mode Indicator Lamp (Customer selectable)
4 — Normal Ride Height Indicator Lamp (Customer selectable)
5 — Off-Road 1 Indicator Lamp (Customer selectable)
6 — Off-Road 2 Indicator Lamp (Customer selectable)
Air Suspension Switch
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15 mph (24 km/h). Entry/Exit mode may not be
available due to vehicle payload, an EVIC message
will be displayed when this occurs. Refer toElectronic
Vehicle Information Center (EVIC) inUnderstanding
Your Instrument Panel for further information.
NOTE: Entry/Exit mode may be achieved using your
key fob for easier entry/loading. Refer to “A Word About
Your Keys” in “Things To Know Before Starting Your
Vehicle” for further information.
• When in ENTRY/EXIT setting, be aware of your
surroundings, you may not have the clearance re-
quired for certain areas and vehicle damage may
occur.
The system requires that the ignition be in ON/RUN
position or the engine running for all user requested
changes. When lowering the vehicle all of the doors, must be closed. If a door is opened at any time while the
vehicle is lowering the change will not be completed
until the open door(s) is closed.
This system uses a lifting and lowering pattern which
keeps the headlights from incorrectly shining into on-
coming traffic. When raising the vehicle, the rear of the
vehicle will move up first and then the front. When
lowering the vehicle, the front will move down first and
then the rear.
After the engine is turned off, it may be noticed that the
air suspension system operates briefly, this is normal. The
system is correcting the position of the vehicle to ensure
a proper appearance.
To assist with changing a spare tire, the air suspension
system has a feature which allows the automatic leveling
to be disabled. Refer to “Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
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NOTE:If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect® Access
Settings” in “Understanding Your Instrument Panel” for
further information.
WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid per-
sonal injury or damage to the system, see your
authorized dealer for service.
Air Suspension Modes
The Air Suspension system has multiple modes to protect
the system in unique situations:
Tire/Jack Mode
To assist with changing a spare tire, the air suspension
system has a feature which allows the automatic leveling to be disabled. Refer to “Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
NOTE:
This mode is intended to be enabled with engine
running.
Transport Mode
To assist with flat bed towing, the air suspension system
has a feature which will put the vehicle into Entry/Exit
height and disable the automatic load leveling system.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for further
information.
NOTE: This mode is intended to be enabled with engine
running.
5
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Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Electronic Vehicle Information Center
(EVIC)” in “Understanding Your Instrument Panel” for
further information.
NOTE:This mode is intended to be enabled with engine
running.
Protection Mode
In order to “protect” the air suspension system, the vehicle
will enter Protection Mode when load leveling cannot be
achieved. Some driving may be required to clear the pro-
tection mode telltale in the EVIC. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information.
NOTE: If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect® Access Settings” in “Understanding Your Instrument Panel” for
further information.
Electronic Vehicle Information Center (EVIC)
Display Messages
When the appropriate conditions exist, a message will
appear in the EVIC display. Refer to “Electronic Vehicle
Information Center (EVIC)” in “Understanding Your
Instrument Panel” for further information.
An audible chime will be heard whenever a system error
has been detected.
Operation
The indicator lamps 3 through 6 will illuminate to show
the current position of the vehicle. Flashing indicator
lamps will show a position which the system is working
to achieve. When raising, if multiple indicator lamps are
flashing, the highest flashing indicator lamp is the posi-
tion the system is working to achieve. When lowering, if
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•Transport Mode – No indicator lamps will be illumi-
nated. Transport Mode is disabled by driving the
vehicle.
• Tire/Jack Mode – indicator lamps 3 and 6 will be
illuminated. Tire/Jack Mode is disabled by driving the
vehicle.
• Wheel Alignment Mode – indicator lamps 3 and 4 will
be illuminated. Wheel Alignment Mode is disabled by
driving the vehicle.
AIR SUSPENSION SYSTEM (2500/3500 MODELS
ONLY) — IF EQUIPPED
Description
The air suspension system is a rear leveling ride height
system. The main purpose of this system is to maintain
the truck’s rear ride height level. Normal Ride Height (NRH)
– This is the standard
position of the suspension and is meant for normal
driving.
Trailer Mode (Lowers the vehicle approximately 1 in
(25 mm)
– This position will lower the rear suspension
and provide load leveling for all loading conditions
Rear Leveling Ride Height Switch
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including towing a trailer. The trailer button will blink
continuously until trailer height has been achieved.
The system requires that the ignition be in ON/RUN
position or the engine running for all user requested
changes.
After the engine is turned off, it may be noticed that the
air suspension system operates briefly, this is normal. The
system is correcting the position of the vehicle to ensure
a proper appearance.
NOTE:If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect® Access
Settings” in “Understanding Your Instrument Panel” for
further information.WARNING!
The air suspension system uses a high pressure
volume of air to operate the system. To avoid per-
sonal injury or damage to the system, see your
authorized dealer for service.
Air Suspension Modes
The Air Suspension system has multiple modes to protect
the system in unique situations:
Tire/Jack Mode
To assist with changing a spare tire, the air suspension
system has a feature which allows the automatic leveling
to be disabled. This mode is intended to be used with
engine running. Refer to “Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
5
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NOTE:This mode is intended to be enabled with engine
running.
Transport Mode
To assist with flat bed towing, the air suspension system
has a feature which will put the vehicle below Normal
Ride Height (NRH) and disable the automatic load
leveling system. This mode is intended to be used with
engine running. Refer to “Electronic Vehicle Information
Center (EVIC)” in “Understanding Your Instrument
Panel” for further information.
NOTE: This mode is intended to be enabled with engine
running.
Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Electronic Vehicle Information Center
(EVIC)” in “Understanding Your Instrument Panel” for
further information. NOTE:
This mode is intended to be enabled with engine
running.
Protection Mode
In order to “protect” the air suspension system, the
vehicle will enter Protection Mode when load leveling
cannot be achieved. Some driving may be required to
clear the protection mode telltale in the EVIC. Refer to
“Electronic Vehicle Information Center (EVIC)” in “Un-
derstanding Your Instrument Panel” for further informa-
tion.
NOTE: If equipped with a touch screen radio all
enabling/disabling of air suspension features must be
done through the radio. Refer to “Uconnect® Access
Settings” in “Understanding Your Instrument Panel” for
further information.
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