Page 603 of 651

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.
Once A Month Or Before A Long Trip:
•Check engine oil level
• Check windshield washer fluid level
• Check tire pressure and look for unusual wear or
damage. Rotate tires at the first sign of irregular wear,
even if it occurs before your next scheduled service.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering and fill as needed.
• Check function of all interior and exterior lights Required Maintenance Intervals
Refer to the maintenance chart for the required mainte-
nance intervals.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Change oil and filter
• Rotate the tires.
Rotate at the first sign of irregular
wear, even if it occurs before your next scheduled service
• Inspect battery and clean and tighten terminals as
required
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake
•
Inspect engine cooling system protection and hoses
• Inspect exhaust system
• Inspect engine air cleaner if using in dusty or
off-road conditions 8
MAINTENANCE SCHEDULES 601
Page 604 of 651

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 ser-
vice 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 Re-
quired” message is displayed. Severe Operating Condi-
tions 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 DID 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 “Driver Informa-
tion 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), 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.
602 MAINTENANCE SCHEDULES
Page 605 of 651

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.
Once A Month Or Before A Long Trip:
•Check engine oil level
• Check windshield washer fluid level
• Check tire pressure and look for unusual wear or
damage. Rotate tires at the first sign of irregular wear,
even if it occurs before your next scheduled service.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering and fill as needed.
• Check function of all interior and exterior lights Required Maintenance Intervals
Refer to the maintenance chart for the required mainte-
nance intervals.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Change oil and filter
• Rotate the tires.
Rotate at the first sign of irregular
wear, even if it occurs before your next scheduled service
• Inspect battery and clean and tighten terminals as
required
• Inspect brake pads, shoes, rotors, drums, hoses
and park brake
•
Inspect engine cooling system protection and hoses
• Inspect exhaust system
• Inspect engine air cleaner if using in dusty or
off-road conditions 8
MAINTENANCE SCHEDULES 603
Page 609 of 651

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 ve-
hicle 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 performance and reliability. More frequent main-
tenance 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 DID and a single chime will sound, indicating that an
oil change is necessary.
8
MAINTENANCE SCHEDULES 607
Page 610 of 651

Based on engine operation conditions, the oil change
indicator message will illuminate. This means that ser-
vice 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, which-
ever comes first. 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 “Driver Informa-
tion Display (DID)” in “Understanding Your Instrument
Panel” for further information.
At Each Stop For Fuel
•
Check the engine oil level. Refer to “Maintenance
Procedures/Engine Oil” in “Maintaining Your Ve-
hicle” for further information.
• Check the windshield washer solvent and add if
required.
608 MAINTENANCE SCHEDULES
Page 615 of 651

Miles:6,000
12,000
18,000
24,000
30,000
36,000
42,000
48,000
54,000
60,000
66,000
72,000
78,000
84,000
90,000
96,000
102,000
108,000 114,000
120,000
126,000
132,000
138,000
144,000
150,000
Or Months: 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150
Or Kilometers:
10,000
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
160,000
170,000
180,000
190,000
200,000
210,000
220,000
230,000
240,000
250,000
Flush and replace the en-
gine coolant at 120 months
if not done at 150,000 miles
(240,000 km). XX
** The spark plug change interval is mileage based only,
yearly intervals do not apply.
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
(Continued)
WARNING! (Continued)
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 ve-
hicle could result in a component malfunction and
effect vehicle handling and performance. This
could cause an accident.
8
MAINTENANCE SCHEDULES 613
Page 639 of 651

Tires ................................434
Load Shed Battery Saver Mode ..................... .274
Battery Saver On ...................... .274
Electrical Load Reduction .................274
Intelligent Battery Sensor ..................274
Locks ..................................31
Automatic Door .........................34
Auto Unlock ...........................34
Door .................................31
Power Door ............................33
Low Tire Pressure System ...................453
Lubrication, Body ........................ .545
Lug Nuts .............................. .499
Maintenance Free Battery ....................539
Maintenance Procedures ....................531
Maintenance Schedule .........600, 602, 604, 607, 610
Malfunction Indicator Light (Check Engine) . . .243, 529 Manual
Backward ........................ .131, 132
Forward ......................... .131, 132
Rearward ............................ .131
Tilt ................................ .132
Manual Park Release ...................... .515
Manual, Service ......................... .622
Manual Transmission ................388, 557, 559
Fluid Level Check ...................557, 559
Map/Reading Lights ...................145, 198
Master Cylinder (Brakes) ....................555
Methanol .............................. .462
Mirrors ............................... .107
Electric Remote .........................115
Exterior Folding ........................114
Heated ...............................115
Outside ...........................114,115
Rearview ............................ .107
Vanity ...............................116
10
INDEX 637