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.
114 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
206 UNDERSTANDING YOUR INSTRUMENT PANEL
•ParkSense® Rear Park Assist Chime Volume
Rear Park Assist chime volume settings can be selected
from the EVIC or Uconnect® System (if equipped). The
chime volume settings include LOW, MEDIUM, and
HIGH. The factory default volume setting is MEDIUM.
Refer to “EVIC settings” or “Uconnect® Settings” in
“Understanding Your Instrument Panel” for further in-
formation.
• 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 the 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 ap-
pears next to the setting, showing that the 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
254 UNDERSTANDING YOUR INSTRUMENT PANEL
system has been activated or the check-mark is removed
showing the system has been deactivated.
•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 (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
4
UNDERSTANDING YOUR INSTRUMENT PANEL 263
▫Tire Identification Number (TIN) ...........348
▫ Tire Terminology And Definitions ..........349
▫ Tire Loading And Tire Pressure ...........351
TIRES — GENERAL INFORMATION ........356
▫ Tire Pressure ....................... .356
▫ Tire Inflation Pressures .................357
▫ Tire Pressures For High Speed Operation . . . .359
▫ Radial Ply Tires ..................... .359
▫ Tire Types .......................... .360
▫ Run Flat Tires — If Equipped .............361
▫ Spare Tires — If Equipped ...............362
▫ Tire Spinning ....................... .364
▫ Tread Wear Indicators ..................365 ▫
Life Of Tire ........................ .365
▫ Replacement Tires .....................366
SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED ...................... .367
TIRE CHAINS (TRACTION DEVICES) .......368
TIRE ROTATION RECOMMENDATIONS .....370
▫ Dual Rear Wheels .....................371
TIRE PRESSURE MONITOR SYSTEM (TPMS) . .372
▫ Base System — If Equipped ..............375
▫ Premium System — If Equipped ...........375
▫ Tire Pressure Information System (TPIS) Chassis
Cab — If Equipped ....................379
▫ General Information ...................380
5
STARTING AND OPERATING 291
•Temporary spare tires are designed for temporary
emergency use only. Temporary high pressure com-
pact spare tires have the letter “T” or “S” molded into
the sidewall preceding the size designation.
Example: T145/80D18 103M. •
High flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter molded
into the sidewall. Example: 31x10.5 R15 LT.
Tire Sizing Chart
EXAMPLE:
Size Designation: P= Passenger car tire size based on U.S. design standards
....blank.... = Passenger car tire based on European design standards
LT = Light truck tire based on U.S. design standards
TorS= Temporary spare tire
31 = Overall diameter in inches (in)
215 = Section width in millimeters (mm)
65 = Aspect ratio in percent (%)
— Ratio of section height to section width of tire
10.5 = Section width in inches (in)
5
STARTING AND OPERATING 345
Tire And Loading Information Placard
This placard tells you important information about the:
1. Number of people that can be carried in the vehicle.
2. Total weight your vehicle can carry.3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and
spare tires.
Loading
The vehicle maximum load on the tire must not exceed
the load carrying capacity of the tire on your vehicle. You
will not exceed the tire’s load carrying capacity if you
adhere to the loading conditions, tire size, and cold tire
inflation pressures specified on the Tire and Loading
Information placard and in the “Vehicle Loading” section
of this manual.
NOTE: Under a maximum loaded vehicle condition,
gross axle weight ratings (GAWRs) for the front and rear
axles must not be exceeded. For further information on
GAWRs, vehicle loading, and trailer towing, refer to
“Vehicle Loading” in this section.
Tire And Loading Information Placard
352 STARTING AND OPERATING
Spare Tires — If Equipped
NOTE:For vehicles equipped with TIREFIT instead of a
spare tire, please refer to “TIREFIT KIT” in “What To Do
In Emergencies” for further information.
CAUTION!
Because of the reduced ground clearance, do not take
your vehicle through an automatic car wash with a
compact, full size or limited-use temporary spare
installed. Damage to the vehicle may result.
Spare Tire Matching Original Equipped Tire And
Wheel — If Equipped
Your vehicle may be equipped with a spare tire and
wheel equivalent in look and function to the original
equipment tire and wheel found on the front or rear axle
of your vehicle. This spare tire may be used in the tire rotation for your vehicle. If your vehicle has this option,
refer to an authorized tire dealer for the recommended
tire rotation pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency use only.
You can identify if your vehicle is equipped with a
compact spare by looking at the spare tire description on
the Tire and Loading Information Placard located on the
driver ’s side door opening or on the sidewall of the tire.
Compact spare tire descriptions begin with the letter “T”
or “S” preceding the size designation.
Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original equip-
ment tire should be repaired (or replaced) and reinstalled
on your vehicle at the first opportunity.
362 STARTING AND OPERATING