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 (if
equipped), or brake fluid leaks are suspected, the cause
should be located and corrected immediately.
124 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
16. Tire Pressure Monitoring Telltale Light — If
EquippedEach tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle
has tires of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)
As an added safety feature, your vehicle has been
equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when
one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is not
operating properly. The TPMS malfunction indicator is
combined with the low tire pressure telltale. When the
system detects a malfunction, the telltale will flash for
approximately one minute and then remain continuously
illuminated. This sequence will continue upon subse-
quent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the sys-
tem may not be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur for a variety
290 UNDERSTANDING YOUR INSTRUMENT PANEL
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.
Key-Off Power Delay
When this feature is selected, the power window
switches, radio, hands-free system (if equipped), DVD
video system (if equipped), power sunroof (if equipped),
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 yourselection, 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. 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.
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.
4
UNDERSTANDING YOUR INSTRUMENT PANEL 333
•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 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.
• Headlight Off Delay
When this feature is selected, the driver can choose to
have the headlights remain on for 0, 30, 60, or 90 seconds when exiting the vehicle. 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.
•
Headlight Illumination On Approach
When this feature is selected, the headlights will activate
and remain on for 0, 30, 60, or 90 seconds when the doors
are unlocked with the Remote Keyless Entry (RKE)
transmitter. To change the Illuminated Approach status,
touch the + or - soft-key to select your desired time
interval. Touch the back arrow soft-key to return to the
previous menu.
• Headlights With Wipers — If Equipped
When this feature is selected, and the headlight switch is
in the AUTO position, the headlights will turn on ap-
proximately 10 seconds after the wipers are turned on.
The headlights will also turn off when the wipers are
346 UNDERSTANDING YOUR INSTRUMENT PANEL
•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 (1500 Model Only)
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.
• Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to your authorized dealer for further
information.
356 UNDERSTANDING YOUR INSTRUMENT PANEL
▫Tire Identification Number (TIN) ...........542
▫ Tire Terminology And Definitions ..........544
▫ Tire Loading And Tire Pressure ...........545
TIRES — GENERAL INFORMATION ........550
▫ Tire Pressure ....................... .550
▫ Tire Inflation Pressures .................552
▫ Tire Pressures For High Speed Operation . . . .553
▫ Radial Ply Tires ..................... .553
▫ Tire Types .......................... .554
▫ Run Flat Tires — If Equipped .............555
▫ Spare Tires — If Equipped ...............556
▫ Tire Spinning ....................... .558
▫ Tread Wear Indicators ..................559 ▫
Life Of Tire ........................ .559
▫ Replacement Tires .....................560
SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED ...................... .561
TIRE CHAINS (TRACTION DEVICES) .......562
TIRE ROTATION RECOMMENDATIONS .....564
▫ Directional Tires — If Equipped ...........565
▫ Dual Rear Wheels — If Equipped ..........565
TIRE PRESSURE MONITOR SYSTEM (TPMS) . .567
▫ Base System ........................ .569
▫ Premium System — If Equipped ...........571
▫ Tire Pressure Information System (TPIS) 3500
Series Trucks ........................ .575
▫ General Information ...................577
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STARTING AND OPERATING 387
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 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 “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® Settings” in “Understand-
ing Your Instrument Panel” for further information.
462 STARTING AND OPERATING
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.
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.
5
STARTING AND OPERATING 463