
CavityCartridge Fuse Micro Fuse Description
F38 30 Amp Pink –Power Inverter 115V AC – If Equipped
F39 20 Amp Blue –Power Outlet – Special Services Only
F41 –10 Amp Red Active Grill Shutter – If Equipped
F42 –20 Amp Yellow Horn
F44 –10 Amp Red Diagnostic Port
F46 –10 Amp Red Upfitter – If Equipped
F49 –10 Amp Red Instrument Panel Cluster
(Except Fleet Vehicles)
F50 –20 Amp Yellow Air Suspension Control Module – If
Equipped
F51 –10 Amp Red Ignition Node Module / Keyless Ignition
(Instrument Panel Cluster –Fleet Vehicles Only)
F52 –5 Amp Tan Battery Sensor
F53 –20 Amp Yellow Trailer Tow – Left Turn/Stop Lights
F54 –20 Amp Yellow Adjustable Pedals
F56 –15 Amp Blue Additional Diesel Content – If Equipped
F57 –20 Amp Yellow Transmission
F58 –20 Amp Yellow Spare Fuse
F59 –10 Amp Red SCR Relay – If Equipped
496 MAINTAINING YOUR VEHICLE

CavityCartridge Fuse Micro Fuse Description
F74 –20 Amp Yellow (Gas
Engine & 1500 LD Diesel) Brake Vacuum Pump Gas/Diesel – If
Equipped
F75 –10 Amp Red Coolant Temperature Valve Actuator
F76 –10 Amp Red Antilock Brakes / Electronic Stability Control
F77 –10 Amp Red Drivetrain Control Module/Front Axle
Disconnect Module
F78 –10 Amp Red Engine Control Module / Electric Power
Steering
F79 –15 Amp Blue Clearance Lights
F80 –10 Amp Red Universal Garage Door Opener / Compass
F81 –20 Amp Yellow Trailer Tow Right Turn / Stop Lights
F82 –10 Amp Red Steering Column Control Module /
Cruise Control
F84 –15 Amp Blue Switch Bank / Instrument Cluster
F85 –10 Amp Red Airbag Module
F86 –10 Amp Red Airbag Module
F87 –10 Amp Red Air Suspension – If Equipped / Trailer Tow
/ Steering Column Control Module
F88 –15 Amp Blue Instrument Panel Cluster
498 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 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 “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 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.Gasoline Engines:
Under no circumstances should oil change intervals exceed
8,000 miles (13,000 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:
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 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 the tire inflation pressures and look for unusual
wear or damage
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and automatic transmis-
sion, and fill as needed
• Check function of all interior and exterior lights
512 MAINTENANCE SCHEDULES

Mileage or time passed (which-ever 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
Additional Inspections
Inspect the CV/Universal joints. XX X XX
Inspect front suspension, tie rod
ends, and replace if necessary. XXX X X X X
Inspect the front and rear axle sur-
faces. If gear oil leakage is sus-
pected, check the fluid level. If us-
ing your vehicle for police, taxi,
fleet, off-road or frequent trailer
towing, change axle fluid. XXX X X X X
Inspect the brake linings, parking
brake function. XXX X X X X
Additional Maintenance
Replace engine air filter. XX X XX
Replace spark plugs. ** X
Flush and replace the engine cool-
ant at 10 years or 150,000 miles
(240,000 km) whichever comes
first. XX
514 MAINTENANCE SCHEDULES

Mileage or time passed (which-ever 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 automatic transmis-
sion fluid (AS66RC Transmission
Only). XX X
Change the automatic transmis-
sion fluid and sump filter (AS66RC
Transmission Only). XX
Change the automatic transmis-
sion fluid and filter(s) (66RFE
Transmission Only), if using your
vehicle for police, taxi, fleet, or
frequent trailer towing. XX
Change the automatic transmis-
sion fluid and filter(s) (66RFE
transmission). X
Inspect the transfer case fluid,
change for any of the following:
police, taxi, fleet, or frequent
trailer towing. XX X X X
8
MAINTENANCE SCHEDULES 515

Gasoline, Reformulated..................... .402
Gear Ranges ............................. .332
Gear Select Lever Override ....................445
Glass Cleaning ........................... .491
Grocery Bag Retainer ....................... .187
Gross Axle Weight Rating .....................409
Gross Vehicle Weight Rating ...................409
Guide, Body Builders .........................6
GVWR ................................. .407
Hazard Driving Through Flowing, Rising, Or Shallow
Standing Water ......................... .352
Hazard Warning Flasher ..................... .430
Headlights .............................. .501
Automatic ............................ .128
Cleaning .............................. .490
High Beam ............................ .136
High Beam/Low Beam Select Switch ...........136
Passing ............................... .136
Switch ............................... .128
Head Restraints ............................119
Heated Mirrors ........................ .109, 187
Heater ................................. .280
High Beam/Low Beam Select (Dimmer) Switch .....136Hill Descent Control
....................... .368
Hill Descent Control Indicator .................368
Hill Start Assist ........................... .360
Hitches Trailer Towing .......................... .412
Hoisting ................................ .440
HomeLink (Garage Door Opener) ...............164
Hood Release ............................ .125
Hub Caps ............................... .438
Ignition ..................................15
Key.................................11,15
Ignition Key Removal ........................15
Illuminated Entry ...........................21
Immobilizer (Sentry Key) ......................18
Inside Rearview Mirror .................. .101, 106
Instr
ument Cluster ...................204, 207, 220
Instrument Cluster Display Instrument Cluster Display ..................223
Instrument Panel And Controls .................195
Instrument Panel Lens Cleaning ................491
Integrated Trailer Brake Controls ................416
Interior Appearance Care .....................490
Interior Lights ............................ .132
Intermittent Wipers (Delay Wipers) ..............13710
INDEX 529

Interior..................... .132, 133, 134, 164
Low Fuel ............................. .214
Malfunction Indicator (Check Engine) ..........208
Park ................................. .219
Passing ............................... .136
Seat Belt Reminder ...................... .201
Security Alarm ......................... .203
Service ............................ .500, 501
Tire Pressure Monitoring (TPMS) ..........212, 395
Traction Control ........................ .366
Transfer Case .......................... .345
Turn Signal ....................96, 135, 220, 501
Warning (Instrument Cluster Description) . . . .204, 220
Limited-Slip Differential ..................350, 483
Loading Vehicle ........................... .407
Tires................................. .376
Load Shed Battery Saver Mode ...................... .237
Battery Saver On ........................ .237
Electrical Load Reduction ...................237
Intelligent Battery Sensor ...................237
Locks ....................................31
Automatic Door ..........................32
Child Protection ..........................33 Door
..................................31
Power Door .............................32
Low Tire Pressure System .....................395
Lubrication, Body ......................... .471
Lug Nuts ......................... .431, 437, 439
Maintenance Free Battery .....................463
Maintenance Procedures ..................... .457
Maintenance Schedule ...................... .512
Malfunction Indicator Light (Check Engine) . . . .208, 455
Manual, Service ........................... .522
Manual Transmission Fluid Level Check ....................... .484
Memory Seat ............................. .121
Methanol ............................... .403
Mirr
ors ................................. .101
Electric Powered ........................ .108
Heated ............................... .109
Memory .............................. .121
Outside .............................. .107
Rearview .......................... .101, 106
Trailer Towing ...........................111
Modifications/Alterations, Vehicle ................7
Monitor, Tire Pressure System ..................395
10
INDEX 531

Service Manuals.......................... .522
Settings, Personal ......................... .231
Shifting ................................ .329
Automatic Transmission ....................331
Transfer Case .......................... .345
Transfer Case, Shifting Into Transfer Case
Neutral (N) ............................ .426
Transfer Case, Shifting Out Of Transfer Case
Neutral (N) ............................ .427
Shift Lever Override ....................... .445
Signals, Turn ....................... .96, 135, 220
Siri ................................ .316, 317
Sliding Rear Window Power ............................... .188
Snow Chains (Tire Chains) ....................390
Snow Plow .............................. .421
Snow Tires .............................. .385
Spare Tire ............................ .386, 387
Spark Plugs ............................. .508
Speed Control Accel/Decel ........................... .146
Resume .............................. .144
Speed Control (Cruise Control) .................143
Starting .............................. .28, 325
Automatic Transmission ....................325 Cold Weather
.......................... .327
Engine Fails To Start ..................... .327
Remote ................................28
Starting Procedures (Gas Engines) ...............325
Steering Power ............................ .353, 354
Wheel, Heated ......................... .142
Wheel, Tilt ............................ .140
Steering Wheel Audio Controls .................277
Steering Wheel Mounted Sound System Controls . . . .277
Storage Compartment, Center Seat ..............183
Storage, Vehicle ....................... .295, 500
Storing Your Vehicle ....................... .500
Sway Control, Trailer ....................... .367
Synthetic
Engine Oil ....................... .459
System, Remote Starting ......................28
Temperature Control, Automatic (ATC) ...........294
Tilt Down .................................113
Up ...................................113
Tilt Steering Column ....................... .140
Tip Start ................................ .326
Tire And Loading Information Placard ........376, 377
Tire Markings ............................ .370
10
INDEX 535