Fluid Level Check
Check the fluid level when the engine is fully warmed up
and the transmission fluid is at normal operating tempera-
ture. Driving with an improper fluid level will greatly
reduce the life of the transmission and of the fluid. Check
the fluid level whenever the vehicle is serviced.
Fluid Level Check — Procedure
It is best to check the fluid level when the transmission is
at normal operating temperature (170-180°F / 77-82°C for
66RFE transmission, or 158–176°F / 70–80°C for AS66RC
transmission). This normally occurs after at least 15 miles
(25 km) of driving. At normal operating temperature the
fluid cannot be held comfortably between the fingertips.
You can read the transmission sump temperature in the
instrument cluster display (refer to Instrument Cluster
Display” in “Understanding Your Instrument Panel” for
further information).
Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the instru-
ment cluster display, and operate the vehicle as required
to reach the normal operating temperature. If the trans-
mission is not functioning properly, or the vehicle cannot be driven, see the NOTE and CAUTION below
about checking the fluid level at colder temperatures.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60
seconds, and leave the engine running for the rest of this
procedure.
4. Fully apply the parking brake and press the brake pedal.
5. Place the gear selector momentarily into each gear
position (allowing time for the transmission to fully
engage in each position), ending with the transmission
in PARK.
6. Wipe the area around the dipstick clean to prevent dirt
from entering the transmission.
7. Remove the dipstick, wipe it clean and reinsert it until
seated.
8. Remove the dipstick again and note the fluid level on
both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid if
the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the 7MAINTAINING YOUR VEHICLE 479
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
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
Cavity Cartridge Fuse Micro Fuse Description
F98 – 25 Amp Clear Front Heated Seats – If Equipped
F99 – 10 Amp Red Climate Control
F100 – 10 Amp Red Upfitters – If Equipped
F101 – 15 Amp Blue Electrochromatic Mirror / Smart High Beams –
If Equipped
F104 – 20 Amp Yellow Power Outlets (Instrument Panel / Center Con-
sole)
CAUTION!• When installing the power distribution center cover,
it is important to ensure the cover is properly posi-
tioned and fully latched. Failure to do so may allow
water to get into the power distribution center and
possibly result in an electrical system failure.
• When replacing a blown fuse, it is important to use
only a fuse having the correct amperage rating. The
use of a fuse with a rating other than indicated may
result in a dangerous electrical system overload. If a
properly rated fuse continues to blow, it indicates a
problem in the circuit that must be corrected. VEHICLE STORAGE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to minimize
the drain on your vehicle’s battery:
• Disconnect the negative cable from battery.
• Any time you store your vehicle or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower setting. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again. 7MAINTAINING YOUR VEHICLE 493
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
Gear Ranges ............................. .327
Gear Select Lever Override ................... .441
Glass Cleaning ........................... .485
Grocery Bag Retainer ....................... .182
Gross Axle Weight Rating .................... .404
Gross Vehicle Weight Rating .................. .404
Guide, Body Builders .........................6
GVWR ................................. .402
Hazard
Driving Through Flowing, Rising, Or Shallow
Standing Water ......................... .348
Hazard Warning Flasher ..................... .426
Headlights .............................. .495
Automatic ............................ .125
Cleaning .............................. .484
High Beam ............................ .133
High Beam/Low Beam Select Switch .......... .133
Passing ............................... .132
Switch ............................... .125
Head Restraints ............................116
Heated Mirrors ........................ .107, 182
Heater ................................. .277
High Beam/Low Beam Select (Dimmer) Switch .... .133
Hill Descent Control ....................... .363 Hill Descent Control Indicator ................ .363
Hill Start Assist ........................... .355
Hitches
Trailer Towing .......................... .408
Hoisting ................................ .435
HomeLink (Garage Door Opener) .............. .161
Hood Release ............................ .123
Hub Caps ............................... .434
Ignition ..................................15
Key.................................11,15
Ignition Key Removal ........................15
Illuminated Entry ...........................22
Immobilizer (Sentry Key) ......................18
Inside Rearview Mirror ................... .99, 104
Instrument Cluster .................. .200, 202, 216
Instr ument Cluster Display
Instrument Cluster Display ................. .218
Instrument Panel And Controls ................ .191
Instrument Panel Lens Cleaning ............... .485
Integrated Trailer Brake Controls ................411
Interior Appearance Care .................... .484
Interior Lights ............................ .129
Intermittent Wipers (Delay Wipers) ............. .134
Introduction ................................4 10 INDEX 523