
When to Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting occurs,
push the TOW/HAUL switch to activate TOW/HAUL
mode. This will improve performance and reduce the
potential for transmission overheating or failure due to
excessive shifting.The “TOW/HAUL Indicator Light” will illuminate in the
instrument cluster to indicate that TOW/HAUL mode has
been activated. Pushing the switch a second time restores
normal operation. Normal operation is always the default
at engine start-up. If TOW/HAUL mode is desired, the
switch must be pushed each time the engine is started.
WARNING!
Do not use the “TOW/HAUL” feature when driving in
icy or slippery conditions. The increased engine brak-
ing can cause the rear wheels to slide, and the vehicle
to swing around with the possible loss of vehicle
control, which may cause an accident possibly result-
ing in personal injury or death.
FOUR-WHEEL DRIVE OPERATION — IF EQUIPPED
Four-wheel drive trucks are equipped with either a manu-
ally shifted transfer case or an electronically shifted trans-
fer case. Refer to the operating instructions for your
transfer case, located in this section for further information.
TOW/HAUL Switch
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STARTING AND OPERATING 313

Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD and
4LOW) are located in the instrument cluster and indicate
the current and desired transfer case selection. When you
select a different transfer case position, the indicator lights
will do the following:
If All Of The Following Shift Conditions Are Met:
1. The current position indicator light will turn OFF.
2. The selected position indicator light will flash until thetransfer case completes the shift.
3. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON.
If One Or More Of The Following Shift Conditions Are
Not Met:
1. The indicator light for the current position will remain ON.
2. The newly selected position indicator light will continue to flash.
3. The transfer case will notshift. NOTE:
Before retrying a selection, make certain that all the
necessary requirements for selecting a new transfer case
position have been met. To retry the selection, push the
current position, wait five seconds, and retry selection. To
find the shift requirements, refer to the Shifting Procedure
for your transfer case, located in this section.
The “SVC 4WD Warning Light” monitors the electronic
shift four-wheel drive system. If this light remains on after
engine start up or illuminates during driving, it means that
the four-wheel drive system is not functioning properly
and that service is required.
WARNING!
Always engage the parking brake when powering
down the vehicle if the “SVC 4WD Warning Light” is
illuminated. Not engaging the parking brake may
allow the vehicle to roll which may cause personal
injury or death.
316 STARTING AND OPERATING

When additional traction is required, the transfer case 4WD
HIGH and 4WD LOW positions can be used to maximize
torque to the front driveshaft, forcing the front and rear
wheels to rotate at the same speed. This is accomplished
pushing the desired position on the 4WD Control Switch.
Refer to “Shifting Procedure” in this section for specific
shifting instructions.
The 4WD HIGH and 4WD LOW positions are designed for
loose, slippery road surfaces only. Driving in the 4WD
HIGH and 4WD LOW positions on dry hard surfaced
roads may cause increased tire wear and damage to the
driveline components.
NOTE:The transfer case NEUTRAL button is located in
the center of the 4WD Control Switch and is pushed by
using a ballpoint pen or similar object. The transfer case
NEUTRAL position is to be used for recreational towing
only. Refer to “Recreational Towing” in “Starting And
Operating” for further information.
Transfer Case Position Indicator Lights
The Transfer Case Position Indicator Lights (4WD HIGH,
4LOW, and 4WD AUTO) are located in the instrument
cluster and indicate the current and desired transfer case selection. When you select a different transfer case posi-
tion, the indicator lights will do the following:
If All Of The Following Shift Conditions Are Met:
1. The current position indicator light will turn OFF.
2. The selected position indicator light will flash until the
transfer case completes the shift.
3. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON.
If One Or More Of The Following Shift Conditions Are
Not Met:
1. The indicator light for the current position will remain ON.
2. The newly selected position indicator light will continue to flash.
3. The transfer case will notshift.
NOTE: Before retrying a selection, make certain that all the
necessary requirements for selecting a new transfer case
position have been met. To retry the selection, push the
current position, wait five seconds, and retry selection. To
find the shift requirements, refer to the Shifting Procedure
for your transfer case, located in this section.
320 STARTING AND OPERATING

ACTIVE-LEVEL FOUR CORNER AIR SUSPENSION
SYSTEM — IF EQUIPPED
Description
The air suspension system provides full time load leveling
capability along with the benefit of being able to adjust
vehicle height by the push of a switch.NOTE:
The vehicle will automatically enter Aero Mode
when the vehicle speed remains between 62 mph
(100 km/h) and 66 mph (106 km/h) for greater than 20
seconds or if the vehicle speed exceeds 66 mph (106 km/h).
• Normal Ride Height (NRH) – This is the standard
position of the suspension and is meant for normal
driving.
• Off-Road 1 (OR1) (Raises the vehicle approximately
1 in (26 mm)) – This position should be the primary
position for all off-road driving until Off Road 2 (OR2) is
needed. A smoother and more comfortable ride will
result. To enter OR1, push the height selector switch up
once from the NRH position while the vehicle speed is
below 35 mph (56 km/h). When in the OR1 position, if
the vehicle speed remains between 40 mph (64 km/h)
and 50 mph (80 km/h) for greater than 20 seconds or if
the vehicle speed exceeds 50 mph (80 km/h), the vehicle
will be automatically lowered to NRH. Off-Road 1 may
not be available due to vehicle payload, an instrument
cluster message will be displayed when this occurs.
Refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information.
Air Suspension Switch
1 — Off-Road 2 Indicator (Customer Selectable)
2 — Off-Road 1 Indicator (Customer Selectable)
3 — Normal Ride Height Indicator (Customer Selectable)
4 — Aero Mode Indicator (Customer Selectable)
5 — Entry/Exit Mode Indicator (Customer Selectable)
6 — Height Selector 322 STARTING AND OPERATING

•Off-Road 2 (OR2) (Raises the vehicle approximately
2 in (51 mm)) – This position is intended for off-roading
use only where maximum ground clearance is required.
To enter OR2, push the height selector switch up twice
from the NRH position or once from the OR1 position
while vehicle speed is below 20 mph (32 km/h). While
in OR2, if the vehicle speed exceeds 25 mph (40 km/h)
the vehicle height will be automatically lowered to OR1.
Off-Road 2 may not be available due to vehicle payload,
an instrument cluster message will be displayed when
this occurs. Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for further
information.
CAUTION!
If the vehicle is in OFFROAD1 or OFFROAD2 setting,
be aware of your surroundings, you may not have the
clearance required for certain areas and vehicle dam-
age may occur.
• Aero Mode (Lowers the vehicle approximately .6 in
[15 mm]) – This position provides improved aerody-
namics by lowering the vehicle. The vehicle will auto-
matically enter Aero Mode when the vehicle speed
remains between 62 mph (100 km/h) and 66 mph (106 km/h) for greater than 20 seconds or if the vehicle
speed exceeds 66 mph (106 km/h). The vehicle will
return to NRH from Aero Mode if the vehicle speed
remains between 30 mph (48 km/h) and 35 mph
(56 km/h) for greater than 20 seconds or if the vehicle
speed falls below 30 mph (48 km/h).
NOTE: Speed thresholds for raising the vehicle only apply
if Automatic Aero Mode is enabled.
• To enter Aero Mode manually push the height selector
switch down once from NRH at any vehicle speed. To
return to NRH push the height selector switch up once
while vehicle speed is less than 56 mph (90 km/h).
NOTE: Automatic Aero Mode may be disabled through
vehicle settings in the instrument cluster display or
through your Uconnect Radio if equipped. Refer to “In-
strument Cluster Display” in “Getting To Know Your
Instrument Panel” or “Uconnect Settings” in “Multimedia”
for further information.
• Entry/Exit Mode (Lowers the vehicle approximately
2 in (51 mm)) – This position lowers the vehicle for
easier passenger entry and exit as well as lowering the
rear of the vehicle for easier loading and unloading of
cargo. To enter Entry/Exit Mode, push the height selec-
tor switch down once from the NRH while the vehicle
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STARTING AND OPERATING 323

speed is below 33 mph (53 km/h). Once the vehicle
speed goes below 15 mph (24 km/h) the vehicle height
will begin to lower. If the vehicle speed remains between
15 mph (24 km/h) and 25 mph (40 km/h) for greater
than 60 seconds, or the vehicle speed exceeds 25 mph
(40 km/h) the Entry/Exit change will be cancelled. To
return to Normal Height Mode, push the height selector
switch up once while in Entry/Exit or drive the vehicle
over 15 mph (24 km/h). Entry/Exit mode may not be
available due to vehicle payload, an instrument cluster
message will be displayed when this occurs. Refer to
“Instrument Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
NOTE: Entry/Exit mode may be achieved using your key
fob for easier entry/loading. Refer to “Keys” in “Getting To
Know Your Vehicle” for further information.
CAUTION!
When in ENTRY/EXIT setting, be aware of your sur-
roundings, you may not have the clearance required 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 oncom-
ing 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 “Instrument Cluster Display” in “Getting To
Know 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 Settings” in “Multimedia” for
further information.
324 STARTING AND OPERATING

WARNING!
The air suspension system uses a high pressure vol-
ume of air to operate the system. To avoid personal
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:
Automatic AERO Mode
To improve aerodynamics, the air suspension system has a
feature which will put the vehicle into AERO height
automatically. Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for further
information.
Automatic Aero Mode may be disabled through vehicle
settings in the instrument cluster display or through your
Uconnect Radio if equipped. Refer to “Instrument Cluster
Display” in “Getting To Know Your Instrument Panel” or
“Uconnect Settings” in “Multimedia” for further informa-
tion.NOTE:
This mode is intended to be enabled with engine
running.
Tire Jack Mode
To assist with changing a tire, the air suspension system
has a feature which allows the automatic leveling to be
disabled. Refer to “Instrument Cluster Display” in “Get-
ting To Know Your Instrument Panel” or “Uconnect Set-
tings” in “Multimedia” if equipped with a touch screen
radio for further information.
NOTE: This mode is intended to be enabled with engine
running.
Transport Mode
For towing your vehicle with four wheels off the road, 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 “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument Panel” or
“Uconnect Settings” in “Multimedia” if equipped with a
touch screen radio for further information.
NOTE: This mode is intended to be enabled with engine
running.6
STARTING AND OPERATING 325

Wheel Alignment Mode
Before performing a wheel alignment, this mode must be
enabled. Refer to “Instrument Cluster Display” in “Getting
To Know Your Instrument Panel” or “Uconnect Settings” in
“Multimedia” if equipped with a touch screen radio for
further information.
NOTE:This mode is intended to be enabled with engine
running.
Protection Strategy
In order to “protect” the air suspension system, the vehicle
will disable load leveling as required (suspension over-
loaded, battery charge low, etc.). Load leveling will automati-
cally resume as soon as system operation requirements are
met. See your authorized dealer if system does not resume.
NOTE:If towing with air suspension refer to “Trailer Towing”
in “Starting And Operating” for further information.
Instrument Cluster Display Messages
When the appropriate conditions exist, a message will
appear in the instrument cluster display. Refer to “Instru-
ment Cluster Display” in “Getting To Know Your Instru-
ment Panel” for further information.
An audible chime will be heard whenever a system error
has been detected. See your authorized dealer for system service if normal
operation does not resume.
Operation
Air Suspension Switch
1 — Off-Road 2 Indicator (Customer selectable)
2 — Off-Road 1 Indicator (Customer selectable)
3 — Normal Ride Height Indicator (Customer selectable)
4 — Aero Mode Indicator (Customer Selectable)
5 — Entry/Exit Mode Indicator (Customer selectable)
6 — Height Selector
326 STARTING AND OPERATING