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250
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
3.6L AND 5.7L ENGINES
These vehicles are 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, and extremely hot or cold
ambient temperatures 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 “Oil Change Required” message will be
displayed in the instrument cluster and a single
chime will sound, indicating that an oil change
is necessary.An 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 an
authorized dealer, the message can be reset by
referring to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
further information.
NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km),
12 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) or
350 hours of engine run time if the vehicle is
operated in a dusty and off-road environment,
or is operated predominantly at idle or only very
low engine RPM. 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
(if equipped) and fill as needed.
Check function of all interior and exterior
lights.
Maintenance Plan — 3.6L And 5.7L
Required Maintenance Intervals:
Refer to the maintenance schedules on the
following page for the required maintenance
intervals. More frequent maintenance may be
needed in severe conditions, such as dusty
areas and very short trip driving. In some
extreme conditions, additional maintenance
not specified in the maintenance schedule may
be required.
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SERVICING AND MAINTENANCE251
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 the CV/Universal joints
Inspect engine cooling system protection and hoses
Inspect exhaust system
Inspect engine air cleaner if using in dusty or off-road conditions, replace engine air cleaner if necessary
Inspect and replace the Evaporative System Fresh Air Filter as necessary, replacement may be more frequent if vehicle is operated in extreme dusty
conditions
7
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254SERVICING AND MAINTENANCE
Heavy Duty Use Of The Vehicle
Change engine oil at 4,000 miles (6,500 km) or
350 hours of engine run time if the vehicle is
operated in a dusty and off road environment or
is operated predominately at idle or only very
low engine RPM. This type of vehicle use is
considered Severe Duty.
6.2L SUPERCHARGED AND 6.4L
E
NGINES
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
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.
An “Oil Change Required” message 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 illumi-
nated.
Change your engine oil more often if you drive
your vehicle off-road/track usage for an
extended period of time.
Under no circumstances should oil change
intervals exceed 6,000 miles (10,000 km) or
6 months, whichever comes first.
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 mechanic.
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.
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SERVICING AND MAINTENANCE255
An 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 an
authorized dealer, the message can be reset by
referring to the steps described under
“Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further
information.
At Each Stop For Fuel
Check the engine oil level. Refer to “Engine
Compartment” in this chapter for further
information.
Check the windshield washer solvent and
add if required. Once A Month
Check tire pressure and look for unusual
wear or damage.
Inspect the battery, and clean and tighten the
terminals as required.
Check the fluid levels of the coolant reservoir,
brake master cylinder, and power steering
(6.2L only), and add as needed.
Check all lights and other electrical items for
correct operation.
At Each Oil Change
Change the engine oil filter.
Inspect the brake hoses and lines.
Inspect the CV/Universal joints.
CAUTION!
Failure to perform the required maintenance
items may result in damage to the vehicle.
7
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256SERVICING AND MAINTENANCE
Maintenance Plan — 6.2L And 6.4L
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
Change
the engine
oil and
engine oil
filter. X X X X X X X X X X X X X X X X X X X X X X X X X
Rotate the
tires, rotate
at the first
sign of
irregular
wear, even
if it occurs
before
scheduled
maintenance
.
X
X X X X X X X X X X X X X X X X X X X X X X X X
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266SERVICING AND MAINTENANCE
ENGINE COMPARTMENT
3.6L ENGINE
1 — Power Distribution Center (Fuses) 5 — Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Washer Fluid Reservoir Cap
4 — Engine Coolant Reservoir
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SERVICING AND MAINTENANCE267
5.7L ENGINE
1 — Power Distribution Center (Fuses) 5 — Air Cleaner Filter
2 — Engine Oil Fill 6 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 7 — Washer Fluid Reservoir
4 — Engine Coolant Reservoir
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268SERVICING AND MAINTENANCE
6.2L SUPERCHARGED ENGINE
1 — Intercooler Fluid Reservoir 6 — Power Steering Reservoir Cap
2 — Engine Oil Fill 7 — Engine Oil Dipstick
3 — Brake Fluid Reservoir Access Cover 8 — Power Distribution Center (Fuses)
4 — Engine Coolant Reservoir 9 — Washer Fluid Reservoir Cap
5 — Air Cleaner Filter
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