Page 423 of 536

CAUTION!• DO NOT dolly tow any 4WD vehicle. Towing with
only one set of wheels on the ground (front or rear)
will cause severe transmission and/or transfer case
damage. Tow with all four wheels either ON the
ground, or OFF the ground (using a vehicle trailer).
• Tow only in the forward direction. Towing this
vehicle backwards can cause severe damage to the
transfer case.
• Before recreational towing, the transfer case must be
in NEUTRAL. To be certain the transfer case is fully
in NEUTRAL, perform the procedure outlined under
“Shifting Into NEUTRAL”. Internal transmission
damage will result, if the transfer case is not in
NEUTRAL during towing.
• Automatic transmissions must be placed in PARK,
and manual transmissions must be placed in gear
(not in Neutral) for recreational towing.
• Towing this vehicle in violation of the above require-
ments can cause severe transmission and/or transfer
case damage. Damage from improper towing is not
covered under the New Vehicle Limited Warranty. (Continued) CAUTION! (Continued)• Do not disconnect the rear driveshaft because fluid
will leak from the transfer case, causing damage to
internal parts.
• Do not use a bumper-mounted clamp-on tow bar on
your vehicle. The bumper face bar will be damaged.
Shifting Into NEUTRAL (N)
Use the following procedure to prepare your vehicle for
recreational towing.
WARNING!You or others could be injured or killed if you leave the
vehicle unattended with the transfer case in the NEU-
TRAL (N) position without first fully engaging the
parking brake. The transfer case NEUTRAL (N) position
disengages both the front and rear driveshafts from the
powertrain, and will allow the vehicle to roll, even if the
automatic transmission is in PARK (or manual transmis-
sion is in gear). The parking brake should always be
applied when the driver is not in the vehicle. 5STARTING AND OPERATING 421
Page 490 of 536
Cavity Cartridge Fuse Micro Fuse Description
F09 40 Amp Green
(Special Services
Vehicle & Cummins
Diesel) – Diesel Fuel Heater – If Equipped
F10 40 Amp Green – Body Controller / Exterior Lighting #2
F10 50 Amp Red – Body Controller / Exterior Lighting #2 –
If Equipped with Stop/Start
F11 30 Amp Pink – Integrated Trailer Brake Module – If Equipped
F12 40 Amp Green – Body Controller #3 / Power Locks
F13 40 Amp Green – Blower Motor
F14 40 Amp Green – Body Controller #4 / Interior Lighting
F16 30 Amp Pink – Smart Bar – If Equipped
F19 20 Amp Blue
(1500 LD Diesel)
30 Amp Pink
(Cummins Diesel) – SCR – If Equipped
F20 30 Amp Pink – Passenger Door Module
F21 30 Amp Pink – Drive Train Control Module
F22 20 Amp Blue
30 Amp Pink
(Cummins Diesel) – Engine Control Module488 MAINTAINING YOUR VEHICLE
Page 491 of 536
Cavity Cartridge Fuse Micro Fuse Description
F23 30 Amp Pink – Body Controller #1 / Interior Lighting
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wiper
F26 30 Amp Pink – Antilock Brakes / Stability Control Module /
Valves
F28 20 Amp Blue – Trailer Tow Backup Lights – If Equipped
F29 20 Amp Blue – Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink – Trailer Tow Receptacle
F31 30 Amp Pink
(1500 LD Diesel) – Urea Heater Control – If Equipped
F32 – – Spare Fuse
F33 20 Amp Blue – Special Services Vehicle Only
F34 30 Amp Pink – Vehicle System Interface Module #2 –
If Equipped
F35 30 Amp Pink – Sunroof – If Equipped
F36 30 Amp Pink – Rear Defroster – If Equipped
F37 30 Amp Pink – Cummins Diesel Fuel Heater #2 – If Equipped
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 7MAINTAINING YOUR VEHICLE 489
Page 492 of 536
Cavity Cartridge Fuse Micro Fuse Description
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 (In-
strument 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
F60 – 15 Amp Blue Underhood Lamp
F61 – 10 Amp Red (1500 LD
Diesel & Cummins
Diesel) PM Sensor – If Equipped
F62 – 10 Amp Red Air Conditioning Clutch490 MAINTAINING YOUR VEHICLE
Page 494 of 536
Cavity Cartridge Fuse Micro Fuse Description
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
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 Switch
F97 – 25 Amp Clear Rear Heated Seats & Heated Steering Wheel –
If Equipped492 MAINTAINING YOUR VEHICLE
Page 508 of 536

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 lights506 MAINTENANCE SCHEDULES
Page 510 of 536

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
150,000Or Years: 23456789101112131415
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
240,000Additional Inspections
Inspect the CV/Universal joints. XXXXX
Inspect front suspension, tie rod ends,
and replace if necessary. XXXXXXX
Inspect the front and rear axle surfaces.
If gear oil leakage is suspected, check
the fluid level. If using your vehicle for
police, taxi, fleet, off-road or frequent
trailer towing, change axle fluid. XXXXXXX
Inspect the brake linings, parking brake
function. XXXXXXX
Additional Maintenance
Replace engine air filter. XXXXX
Replace spark plugs. ** X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first. XX
Change the automatic transmission fluid
(AS66RC Transmission Only). XXX508 MAINTENANCE SCHEDULES
Page 511 of 536
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
150,000Or Years: 23456789101112131415
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
240,000Change the automatic transmission fluid
and sump filter (AS66RC Transmission
Only). XX
Change the automatic transmission fluid
and filter(s) (66RFE Transmission Only),
if using your vehicle for police, taxi,
fleet, or frequent trailer towing. XX
Change the automatic transmission 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. XXXXX
Change the transfer case fluid. X
Inspect and replace PCV valve if neces-
sary. X
** The spark plug change interval is mileage based only,
yearly intervals do not apply. 8MAINTENANCE SCHEDULES 509