Periodic Safety Checks You Should Make Outside
The Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks and bulges.
Check the wheel nuts for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for positive closing, latching, and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
engine coolant, oil, or other fluid leaks. Also, if gasoline
fumes are detected or if fuel, power steering fluid
(2500,3500,4500,5500 Models Only), or brake fluid leaks
are suspected, the cause should be located and corrected
immediately.
124 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
dealer as soon as possible. Refer to “Occupant Restraints”
in “Things To Know Before Starting Your Vehicle” for
further information.
10. Oil Pressure Gauge — If EquippedThe pointer should always indicate some oil pres-
sure when the engine is running. A continuous high or
low reading under normal driving conditions may indi-
cate a lubrication system malfunction. Immediate service
should be obtained from an authorized dealer.
11. Speedometer
The speedometer shows the vehicle speed in miles per
hour and/or kilometers per hour (mph/km/h).
12. Park/Headlight ON Indicator — If Equipped
This indicator will illuminate when the park
lights or headlights are turned on. 13. Cargo Light — If Equipped
The cargo light will illuminate when the cargo
light is activated by pressing the cargo light
button on the headlight switch.
14. Fuel Gauge
Shows level of fuel in tank when ignition switch is in the
ON/RUN position.
15. Vehicle Security Light — If Equipped This light will flash at a fast rate for approxi-
mately 15 seconds, when the vehicle security
alarm is arming, and then will flash slowly
until the vehicle is disarmed.
16. Tire Pressure Monitoring Telltale Light
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
262 UNDERSTANDING YOUR INSTRUMENT PANEL
and power outlets will remain active for up to 10 minutes
after the ignition switch is turned OFF. Opening either
front vehicle door will cancel this feature. To make your
selection, scroll up or down until the preferred setting is
highlighted, then press and release the SELECT button
until a check-mark appears next to the setting, showing
that the setting has been selected.
Air Suspension Display Alerts – If Equipped
When All is selected, all the Air Suspension Alerts will be
displayed. When Warnings Only is selected only the Air
Suspension Warnings will be displayed. To make your
selection, scroll up or down until the preferred setting is
highlighted, then press and release the SELECT button
until a check-mark appears next to the setting, showing
that the setting has been selected.
Aero Ride Height Mode (1500 Only) – If Equipped
When this feature is selected the Ride Height will auto-
matically be adjusted depending on the vehicle speed. Tomake your selection, press and release the SELECT
button until a check-mark appears next to the feature
showing the system has been activated or the check-mark
is removed showing the system has been deactivated.
Tire/Jack Mode – If Equipped
When this feature is selected the air suspension system is
disabled to assist with changing a spare tire. To make
your selection, press and release the SELECT button until
a check-mark appears next to the feature showing the
system has been activated or the check-mark is removed
showing the system has been deactivated.
Transport Mode – If Equipped
When this feature is selected the air suspension system is
disabled to assist with flat bed towing. To make your
selection, press and release the SELECT button until a
check-mark appears next to the feature showing the
system has been activated or the check-mark is removed
showing the system has been deactivated.
292 UNDERSTANDING YOUR INSTRUMENT PANEL
until a check-mark appears next to setting, showing that
setting has been selected. Touch the back arrow soft-key
to return to the previous menu.
•Rain Sensing Auto Wipers
When this feature is selected, the system will automati-
cally activate the windshield wipers if it senses moisture
on the windshield. To make your selection, touch the
Rain Sensing soft-key, until a check-mark appears next to
setting, showing that setting has been selected. Touch the
back arrow soft-key to return to the previous menu.
• Hill Start Assist — If Equipped
When this feature is selected, the Hill Start Assist (HSA)
system is active. Refer to “Electronic Brake Control
System” in “Starting And Operating” for system function
and operating information. To make your selection, touch
the Hill Start Assist soft-key, until a check-mark appears next to setting, showing that setting has been selected.
Touch the back arrow soft-key to return to the previous
menu.
•
Four Corner Air Suspension Modes — If Equipped
There are four air suspension modes designed to protect
the system in unique situations. Tire Jack Mode is se-
lected to assist in changing a spare tire. Transport Mode
is selected to assist when the vehicle is being flat bed
towed. Wheel Alignment Mode is selected before per-
forming a wheel alignment, refer to your authorized
dealer for information. Protection Mode will automati-
cally be selected in order to “protect” the air suspension
system when the payload has been exceeded or load
leveling cannot be achieved.
Lights
After pressing the Lights soft-key the following settings
will be available.
302 UNDERSTANDING YOUR INSTRUMENT PANEL
•Flash Lights with Remote Lower
When this feature is selected, the front and rear turn
signals will flash when the RKE transmitter REMOTE
LOWER button is pressed twice. This feature may be
selected with or without the sound horn on lower feature
selected. Touch the box next to your selection and a
check-mark appears next to the feature showing the
system has been activated or the check-mark is removed
showing the system has been deactivated.
• Suspension Display Messages
When All is selected, all the Air Suspension Alerts will be
displayed. When Warnings Only is selected only the Air
Suspension Warnings will be displayed.
• Automatic Aero Mode
When this feature is selected the Ride Height will auto-
matically be adjusted depending on the vehicle speed.
Touch the box next to your selection and a check-mark appears next to the feature showing the system has been
activated or the check-mark is removed showing the
system has been deactivated.
•
Tire Jack Mode
When this feature is selected the air suspension system is
disabled to assist with changing a spare tire. Touch the
box next to your selection and a check-mark appears next
to the feature showing the system has been activated or
the check-mark is removed showing the system has been
deactivated.
• Transport Mode
When this feature is selected the air suspension system is
disabled to assist with flat bed towing. Touch the box
next to your selection and a check-mark appears next to
the feature showing the system has been activated or the
check-mark is removed showing the system has been
deactivated.
310 UNDERSTANDING YOUR INSTRUMENT PANEL
▫Snow Tires ......................... .494
▫ Spare Tire Matching Original Equipped Tire And
Wheel – If Equipped ...................495
▫ Compact Spare Tire – If Equipped .........495
▫ Full Size Spare – If Equipped .............496
▫ Limited-Use Spare – If Equipped ..........496
▫ Tire Spinning ....................... .497
▫ Tread Wear Indicators ..................497
▫ Life Of Tire ........................ .498
▫ Replacement Tires .....................499
SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED ...................... .500
TIRE CHAINS ........................ .501
TIRE ROTATION RECOMMENDATIONS .....503▫
Directional Tires – If Equipped ............504
▫ Dual Rear Wheels – If Equipped ..........504
TIRE PRESSURE MONITOR SYSTEM (TPMS) . .505
▫ Base System ........................ .508
▫ Premium System – If Equipped ............510
▫ Tire Pressure Monitor System (TPMS) Tire Light
Load Inflation Switch Description (2500 Models) –
If Equipped ......................... .514
▫ General Information ...................518
FUEL REQUIREMENTS ..................518
▫ 3.6L And 4.7L Engine ...................518
▫ 5.7L Engine ......................... .519
▫ Reformulated Gasoline .................519
▫ Gasoline/Oxygenate Blends ..............520
5
STARTING AND OPERATING 339
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.
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.
5
STARTING AND OPERATING 413
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 suspen-
sion 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 Ve-
hicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. •
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. 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.
• Wheel Alignment Mode
• Before performing a wheel alignment this mode
must be enabled. Refer to “Electronic Vehicle Infor-
mation Center (EVIC)” in “Understanding Your In-
strument Panel” for further information.
• Protection Mode
• In order to “protect” the air suspension system, the
vehicle will enter Protection Mode when load level-
ing cannot be achieved. Some driving may be re-
quired to clear the protection mode telltale in the
414 STARTING AND OPERATING