During cold temperatures, transmission operation may
be modified depending on engine and transmission
temperature as well as vehicle speed. This feature im-
proves warm up time of the engine and transmission to
achieve maximum efficiency. Engagement of the torque
converter clutch, and shifts into 8th or 9th gear, are
inhibited until the transmission fluid is warm (refer to the
“Note” under “Torque Converter Clutch” in this section).
Normal operation will resume once the transmission
temperature has risen to a suitable level.
SPORT (S) — IF EQUIPPED
This mode alters the transmission’s automatic shift
schedule for sportier driving. Upshift speeds are in-
creased to make full use of available engine power. To
access SPORT mode, push down on the gear selector and
rotate it fully clockwise.
LOW (L) — IF EQUIPPED
Use this range for engine braking when descending very
steep grades. In this range, the transmission will down-
shift for increased engine braking. To access the LOW
position, push down on the gear selector and rotate it
fully clockwise.
Transmission Limp Home Mode
Transmission function is monitored electronically for
abnormal conditions. If a condition is detected that could
result in transmission damage, Transmission Limp Home
Mode is activated. In this mode, the transmission may
operate only in a fixed gear, or may remain in NEUTRAL.
The Malfunction Indicator Light (MIL) may be illumi-
nated. Limp Home Mode may allow the vehicle to be
driven to an authorized dealer for service without dam-
aging the transmission.
466 STARTING AND OPERATING
These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes 1/16” (2 mm). When the tread is worn to the
tread wear indicators, the tire should be replaced. Refer
to “Replacement Tires” in this section for further infor-
mation.
Life Of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style
• Tire pressure - Improper cold tire inflation pressures
can cause uneven wear patterns to develop across the
tire tread. These abnormal wear patterns will reduce
tread life, resulting in the need for earlier tire replace-
ment. •
Distance driven
• Performance tires, tires with a speed rating of V or
higher, and summer tires typically have a reduced
tread life. Rotation of these tires per the vehicle main-
tenance schedule is highly recommended.
WARNING!
Tires and the spare tire should be replaced after six
years, regardless of the remaining tread. Failure to
follow this warning can result in sudden tire failure.
You could lose control and have a collision resulting
in serious injury or death.
Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
514 STARTING AND OPERATING
ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC) or Driver
Information Display (DID). Refer to “Electronic Vehicle
Information (EVIC) or Driver Information Display
(DID)” in “Understanding Your Instrument Panel” for7
MAINTAINING YOUR VEHICLE 591
further information. Tighten the fuel filler cap until a
“clicking” sound is heard. This is an indication that the
fuel filler cap is properly tightened. Refer to “Onboard
Diagnostic System” in “Maintaining Your Vehicle” for
further information.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing. Normally, the OBD II system will be ready. The OBD II
system may
notbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check if
your vehicle’s OBD II system is ready, you must do the
following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition switch to the ON position, you will see the MIL symbol come on as part
of a normal bulb check.
592 MAINTAINING YOUR VEHICLE
MAINTENANCE SCHEDULE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice is required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, extremely hot or
cold ambient temperatures will influence when the “Oil
Change Required” message is displayed. Severe Operat-
ing Conditions can cause the change oil message to
illuminate as early as 3,500 miles (5,600 km) since last
reset. Have your vehicle serviced as soon as possible,
within the next 500 miles (805 km).Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Oil Change Reset”
in “Electronic Vehicle Information Center (EVIC)” or
Driver Information Display (DID)” in “Understanding
Your Instrument Panel” for further information.
NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km) or twelve months,
whichever comes first.
Severe Duty All Models
Change Engine Oil at 4000 miles (6,500 km) if the vehicle
is operated in a dusty and off road environment. This
type of vehicle use is considered Severe Duty.
8
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S658 MAINTENANCE SCHEDULES
High Beam........................... .166
High Beam Indicator .....................329
High Beam/Low Beam Select ...............166
Illuminated Entry ........................21
Instrument Cluster ..................... .159
Intensity Control ....................... .168
Interior ............................. .168
License ............................. .650
Lights On Reminder .....................163
Malfunction Indicator (Check Engine) .........329
Parade Mode (Daytime Brightness) ...........169
Passing ............................. .166
Reading ............................. .166
Seat Belt Reminder ..................... .325
Security Alarm ........................ .331
Service .............................. .639
Service Engine Soon (Malfunction Indicator) . . . .329
Side Marker .......................... .642
Tire Pressure Monitoring (TPMS) ............326Traction Control
....................... .491
Turn Signal ............................113
Vanity Mirror ......................... .132
Loading Vehicle ......................... .542
Tires ............................... .499
Locks ..................................31
Automatic Door .........................33
Auto Unlock ...........................34
Child Protection .........................34
Door .................................31
Power Door ............................32
Low Tire Pressure System ...................519
Lubrication, Body ........................ .605
Lug Nuts .............................. .550
Maintenance Free Battery ....................599
Maintenance Procedures ....................594
Maintenance Schedule ..................... .658
Malfunction Indicator Light (Check Engine) .......329
10
INDEX 685
Tire Markings........................... .493
Tires ..................................113 Aging (Life of Tires) .....................514
Air Pressure .......................... .504
Chains .............................. .516
Changing ............................ .562
Compact Spare .........................511
General Information .....................504
High Speed .......................... .507
Inflation Pressures ...................... .506
Jacking .............................. .562
Life of Tires .......................... .514
Load Capacity ........................ .499
Pressure Monitor System (TPMS) ............349
Pressure Warning Light ...................326
Quality Grading ....................... .671
Radial .............................. .507
Replacement .......................... .515
Rotation ............................. .518Safety
.............................. .493
Sizes ............................... .494
Snow Tires ........................... .509
Spare Tire ............................ .563
Spinning ............................ .513
Tread Wear Indicators ....................513
Tire Safety Information .....................493
Tire Service Kit .......................... .552
To Open Hood .......................... .157
Towing ............................... .544
Disabled Vehicle ....................... .584
Recreational .......................... .545
Towing Vehicle Behind a Motorhome ...........545
Traction ............................... .471
Trailer Towing .......................... .544
Transaxle .............................. .457
Automatic ........................... .457
Autostick ............................ .468
Operation ............................ .457
692 INDEX
Transmission........................... .460
Automatic ........................... .460
Maintenance .......................... .617
Transmitter Battery Service (Remote Keyless Entry) . .25
Transmitter, Garage Door Opener (HomeLink®). . . .281
Transmitter Programming (Remote Keyless Entry) . . .25
Transmitter, Remote Keyless Entry (RKE) .........22
Transporting Pets ........................ .108
Tread Wear Indicators ..................... .513
Trunk Lid (Deck Lid) .......................45
Trunk Release, Emergency ....................46
Trunk Release Remote Control .................45
Turn Signals ............................ .165
Uconnect® Operation ............................ .397
Uconnect® Settings .......................23
Uconnect® Settings .........................23 Uconnect® Voice Command
..................423
Uniform Tire Quality Grades .................671
Universal Transmitter ..................... .281
Unleaded Gasoline ....................... .531
Untwisting Procedure, Seat Belt ................55
Upholstery Care ......................... .623
Vanity Mirrors .......................... .132
Vehicle Identification Number (VIN) .............6
Vehicle Loading ......................... .501
Vehicle Modifications/Alterations ...............7
Vehicle Storage .......................... .421
Viscosity, Engine Oil ...................... .597
Warning Flasher, Hazard ....................549
Warnings and Cautions .......................6
Warranty Information ..................... .668
Washers, Windshield ...................... .170
Washing Vehicle ......................... .620
10
INDEX 693