Page 636 of 734

“Understanding Your Instrument Panel” for further in-
formation. Tighten the fuel filler cap properly and press
the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
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 key-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. Turn the ignition switch to the ON position, but do not crank or start the engine.
2. If you crank or start the engine, you will have to start this test over.
3. As soon as you turn the ignition switch to the ON position, you will see the MIL symbol come on as part
of a normal bulb check.
634 MAINTAINING YOUR VEHICLE
Page 675 of 734
Cavity Car-tridgeFuse Micro
Fuse Description
F46 10 Amp
Red Tire Pressure Moni-
tor
F47 10 Amp
Red Snow Plow (Right)
– If Equipped
F49 10 Amp
Red Instrument Panel
Cluster
F50 20 Amp
Yellow Air Suspension
Control Module – If Equipped
F51 10 Amp
Red Ignition Node
Module / Keyless Ignition
F52 5 Amp
Ta n Battery SensorCavity Car-
tridgeFuse Micro
Fuse Description
F53 20 Amp
Yellow Trailer Tow – Left
Turn/Stop Lights
F54 20 Amp
Yellow Adjustable Pedals
F55 20 Amp
Yellow E38 Radio – If
Equipped
F56 15 Amp
Blue Additional Diesel
Content – IfEquipped
F57 20 Amp
Yellow Transmission
7
MAINTAINING YOUR VEHICLE 673
Page 679 of 734
Cavity Car-tridgeFuse Micro
Fuse Description
F88 15 Amp
Blue Instrument Panel
Cluster
F90/F91 20 Amp
Yellow Power Outlet (Rear
seats) Customer Selectable
F93 20 Amp
Yellow Cigar Lighter
F94 10 Amp
Red Shifter / Transfer
Case Module
F95 10 Amp
Red Rear Camera /
Park Assist
F96 10 Amp
Red Rear Seat Heater
SwitchCavity Car- tridgeFuse Micro
Fuse Description
F97 25 Amp
Natural Rear Heated Seats
& Heated Steering Wheel – IfEquipped
F98 25 Amp
Natural Front Heated Seats
– If Equipped
F99 10 Amp
Red Climate Control
F101 15 Amp
Blue Electrochromatic
Mirror / Smart
High Beams – If Equipped
F104 20 Amp
Yellow Power Outlets (In-
strument Panel/Center Console)
7
MAINTAINING YOUR VEHICLE 677
Page 698 of 734

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, and E85 fuel usage will
influence when the “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).
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 thanyour authorized dealer, the message can be reset by refer-
ring to the steps described under “Electronic Vehicle Infor-
mation Center (EVIC)/Oil Change Required” in “Under-
standing 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.
Once A Month Or Before A Long Trip:
• Check engine oil level
• Check windshield washer fluid level
• Check the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering (2500/3500 Models
Only) and transmission as needed
• Check function of all interior and exterior lights
8
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A I
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C
H E
D
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S696 MAINTENANCE SCHEDULES
Page 723 of 734

Inside Rearview Mirror.....................131
Instrument Cluster ....................... .257
Instrument Panel and Controls ................255
Instrument Panel Lens Cleaning ...............666
Integrated Trailer Brake Controls ..............549
Interior Appearance Care ....................665
Interior Lights .......................... .167
Intermittent Wipers (Delay Wipers) .............173
Introduction ..............................4
Inverter Outlet (115V) ..................... .213
Jack Location ........................... .572
Jump Starting ........................... .612
Key-In Reminder ..........................18
Keyless Enter-N-Go ........................39
Keyless Entry System .......................23
Key, Programming .........................20
Key, Replacement ..........................19 Keys
...................................12
Key, Sentry (Immobilizer) ....................18
Lane Change and Turn Signals ................171
Lane Change Assist ....................... .172
Lap/Shoulder Belts .........................51
Latches ............................... .124
Lead Free Gasoline ....................... .521
Leaks, Fluid ............................ .124
Life of Tires ............................ .501
Light Bulbs ............................. .124
Lights ................................ .124
Airbag ................................74
Alarm .............................. .262
Anti-Lock ............................ .257
Automatic Headlights ....................162
Brake Assist Warning ....................480
Brake Warning ........................ .259
Bulb Replacement ...................... .680
10
INDEX 721