Page 471 of 506

•Check function of all interior and exterior lights.
MAINTENANCE SCHEDULE — 5.7L
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 service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures, and E85 fuel usage will influence
when the “Change Oil” or “Oil Change Required” message
is displayed. Severe Operating 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).
The message “Oil Change Required” will be displayed in
the instrument cluster and a single chime will sound,
indicating that an oil change is necessary. 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 “Instrument Cluster
Display” in “Understanding Your Instrument Panel” for
further information.
NOTE:
Under no circumstances should oil change inter-
vals exceed 10,000 miles (16,000 km), twelve months or 350
hours of engine run time, whichever comes first. The 350
hours of engine run or idle time is generally only a concern
for fleet customers.
Severe Duty All Models
Change Engine Oil at 4,000 miles (6,500 km) if the vehicle
is operated in a dusty and off-road environment or is
operated predominately at idle or only very low engine
RPM’s. This type of vehicle use is considered Severe Duty.
8
MAINTENANCE SCHEDULES 469
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Mileage or time passed (whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
Change the manual transmission fluid (if equipped) if using your
vehicle for any of the following: Most of your driving is at sus-
tained speeds during hot weather, above 90°F (32°C), driving in
dusty conditions, or stop and go driving. XX X
Inspect the transfer case fluid. Change the transfer case fluid; if
using your vehicle for any of the following: police, taxi, fleet, off-
road, or frequent trailer towing. (All Wheel Drive Only). XX
Change the rear axle fluid and on models equipped with All
Wheel Drive (AWD) change the front axle fluid if using your ve-
hicle for any of the following: police, taxi, fleet, off-road, or fre-
quent trailer towing. XX X
Inspect and replace PCV valve if necessary. X
* The spark plug change interval is mileage based only,
yearly intervals do not apply.
472 MAINTENANCE SCHEDULES
Page 475 of 506

WARNING!
•You can be badly injured working on or around a
motor vehicle. Do only service work for which you
have the knowledge and the right equipment. If you
have any doubt about your ability to perform a
service job, take your vehicle to a competent me-
chanic.
• Failure to properly inspect and maintain your vehicle
could result in a component malfunction and effect
vehicle handling and performance. This could cause
an accident.
MAINTENANCE SCHEDULE — 6.4L
The Scheduled Maintenance services listed in this manual
must be done at the times or mileages specified to protect
your vehicle warranty and ensure the best vehicle perfor-
mance and reliability. More frequent maintenance may be
needed for vehicles in severe operating conditions, such as
dusty areas and very short trip driving. Inspection and
service should also be done anytime a malfunction is
suspected. The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
The message “Oil Change Required” will be displayed in
the instrument cluster and a single chime will sound,
indicating that an oil change is necessary.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Have your vehicle serviced as
soon as possible, within the next 500 miles (805 km).
NOTE:
•
The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s oil
if it has been six months since your last oil change, even
if the oil change indicator message is NOT illuminated.
• Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
• Under no circumstances should oil change intervals
exceed 6,000 miles (10,000 km) or six months, whichever
comes first.
8
MAINTENANCE SCHEDULES 473
Page 495 of 506

Keyless Enter-N-Go..................... .25, 300
Enter The Trunk ..........................17
Lock The Vehicle’s Doors .............17, 222, 240
Passive Entry Programming ..............222, 240
Unlock From The Driver’s Side ...............16
Unlock From The Passenger Side ..............16
Keyless Go .................................9
Key, Replacement ...........................13
Keys .....................................9
Key, Sentry (Immobilizer) ......................12
Lane Change And Turn Signals .................108
Lane Change Assist ........................ .109
Lap/Shoulder Belts ..........................35
Latches ..................................74
Hood ................................ .102
Lead Free Gasoline ........................ .363
Leaks, Fluid ...............................74
Life Of Tires ............................. .353
Light Bulbs ........................... .74, 455
Lights ............................... .74, 104
AirBag ......................... .43, 72, 175
Automatic Headlights .....................105
Brake Assist Warning ..................... .333
Brake Warning ...................... .176, 324Bulb Replacement
....................... .457
Center Mounted Stop ..................... .459
Courtesy/Reading ....................109, 149
Cruise ..................... .194, 195, 197, 198
Daytime Running ....................... .107
Dimmer Switch, Headlight ..............108, 109
Engine Temperature Warning ................178
Exterior ................................74
Fog ................................. .107
Headlights ......................... .104, 459
Headlights On Reminder ...................107
Headlights On With Wipers ..............105, 113
Headlight Switch ........................ .104
High Beam ............................ .109
High Beam/Low Beam Select ................109
Illuminated
Entry.........................16
Instrument Cluster ...................... .104
Intensity Control .........................110
Interior ............................110,149
License ............................... .459
Lights On Reminder ..................... .107
Low Fuel ............................. .189
Malfunction Indicator (Check Engine) ..........183
Map Reading ....................... .109, 149
Parade Mode (Daytime Brightness) ............111
10
INDEX 493