
270SERVICING AND MAINTENANCE
(Continued)
Rear Axle Fluid Level Check
The rear axle oil level needs to be no lower than
1/8 inch (3 mm) below the bottom of the fill hole.
The rear axle fill and drain plugs should be
tightened to 22 to 29 ft lbs (30 to 40 N·m).
Selection Of Lubricant
Use only the manufacturer's recommended fluid
Úpage 307.
TRANSFER CASE
Fluid Level Check
For normal service, periodic fluid level checks are
not required. When the vehicle is serviced for other
reasons the exterior surfaces of the transfer case
assembly should be inspected. If oil leakage is
suspected inspect the fluid level.
Adding Fluid
With the vehicle in a level position, fill the transfer
case to bottom edge of fill plug opening.
Drain
First remove fill plug, then remove drain plug.
Recommended tightening torque for drain and fill
plugs is 15 to 25 ft lbs (20 to 34 N·m).
Selection Of Lubricant
Use only the manufacturer's recommended fluid
Úpage 307.
FUSES
General Information
CAUTION!
Do not overtighten the plugs as it could damage
them and cause them to leak.CAUTION!
When installing plugs, do not overtighten. You
could damage them and cause them to leak.
WARNING!
When replacing a blown fuse, always use an
appropriate replacement fuse with the same
amp rating as the original fuse. Never replace
a fuse with another fuse of higher amp rating.
The use of a fuse with a rating other than indi -
cated 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. Never replace a
blown fuse with metal wires or any other mate -
rial. Do not place a fuse inside a circuit
breaker cavity or vice versa. Failure to use
proper fuses may result in serious personal
injury, fire and/or property damage.
Before replacing a fuse, make sure that the
ignition is off and that all the other services
are switched off and/or disengaged.
23_WD_OM_EN_USC_t.book Page 270

SERVICING AND MAINTENANCE275
F45 –5 Amp TanCyber Security MOD
F46 ––Spare
F47 ––Spare
F48 ––Spare
F49 –10 Amp RedICS / HVAC
F50 –20 Amp YellowAir Suspension Mod * / ELSD *
F51 –15 Amp BlueKIN / RF HUB / ESCL *
F52 ––Spare
F53 –20 Amp YellowTrlr Tow LT Turn / Stop *
F54 ––Spare
F55 ––Spare
F56 ––PCM *
F57 ––
NOX Snsrs * / PM Snsrs * / Fuel HTR *
F58 –15 Amp BlueHID Headlamps LT *
F59 ––SCR Pump Relay *
F60 –15 Amp BlueTCM
F61 ––PM Sensor *
F62 –10 Amp RedA/C Clutch
F63 –20 Amp YellowIgnition Coils */ Ignition Coil
Capacitors*
Cavity
Cartridge Fuse Micro FuseDescription
* If Equipped
8
23_WD_OM_EN_USC_t.book Page 275

TECHNICAL SPECIFICATIONS305
(Continued)
CNG AND LP FUEL SYSTEM
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid Propane
(LP) may result in damage to the engine,
emissions, and fuel system components. Problems
that result from running CNG or LP are not the
responsibility of the manufacturer and may void
the New Vehicle Limited Warranty.
METHYLCYCLOPENTADIENYL
M
ANGANESE TRICARBONYL (MMT) IN
G
ASOLINE
MMT is a manganese-containing metallic additive
that is blended into some gasolines to increase
octane. Gasoline blended with MMT provides no
performance advantage beyond gasoline of the
same octane number without MMT. Gasoline
blended with MMT reduces spark plug life and
reduces emissions system performance in some
vehicles. The manufacturer recommends that
gasoline without MMT be used in your vehicle. The
MMT content of gasoline may not be indicated on
the gasoline pump; therefore, you should ask your
gasoline retailer whether the gasoline contains
MMT. MMT is prohibited in Federal and California
reformulated gasoline.
FUEL SYSTEM CAUTIONS
NOTE:Intentional tampering with the emissions control
system can result in civil penalties being assessed
against you.
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can impair
engine performance and damage the emis -
sions control system.
An out-of-tune engine or certain fuel or ignition
malfunctions can cause the catalytic
converter to overheat. If you notice a pungent
burning odor or some light smoke, your engine
may be out of tune or malfunctioning and may
require immediate service. Contact an autho -
rized dealer for service assistance.
The use of fuel additives, which are now being
sold as octane enhancers, is not recom -
mended. Most of these products contain high
concentrations of methanol. Fuel system
damage or vehicle performance problems
resulting from the use of such fuels or addi -
tives is not the responsibility of the manufac-
turer and may void or not be covered under
the New Vehicle Limited Warranty.
CAUTION!
9
23_WD_OM_EN_USC_t.book Page 305

316 Fuel
............................................................... 303Additives................................................... 304Clean Air.................................................... 304Economy Mode.......................................... 104Ethanol...................................................... 304Gasoline.................................................... 303Materials Added........................................ 304Methanol................................................... 304Octane Rating........................................... 303Requirements................................. 303, 306Specifications............................................ 307Tank Capacity............................................ 306Fueling........................................................... 135Fuses............................................................. 270
G
Garage Door Opener (HomeLink).................... 41Gasoline, (Fuel)............................................. 303Gasoline, Clean Air........................................ 304Gasoline, Reformulated................................. 304Gear Ranges.................................................. 105Glass Cleaning............................................... 301Gross Axle Weight Rating............................... 137Gross Vehicle Weight Rating.......................... 137GVWR............................................................ 136
H
Hazard Warning Flashers.............................. 229Head Restraints............................................... 36
Headlights Automatic.................................................... 47Cleaning................................................... 299High Beam/Low Beam Select Switch.......... 46Lights On Reminder..................................... 48On With Wipers............................................ 47Passing........................................................ 47Heated Mirrors................................................. 41Heated Seats................................................... 35Heated Steering Wheel.................................... 26Hill Start Assist.............................................. 181HitchesTrailer Towing........................................... 139HomeLink (Garage Door Opener)..................... 41Hood Prop........................................................ 71Hood Release.................................................. 71
I
Ignition............................................................. 16Key Fob Battery Low Or Dead...................... 16Key Fob Not Detected................................. 16Keyless Ignition........................................... 16Keyless Push Button................................... 16Push Button Ignition.................................... 16Switch.......................................................... 16Illuminated Entry.............................................. 51Immobilizer (Sentry Key).................................. 16Inside Rearview Mirror............................40, 229
Instrument Cluster....................................78, 79Display........................................... 79, 80, 83Menu Items.................................................84Instrument Cluster
b
.....................................79Instrument Cluster DisplayAudio...........................................................86Driver Assist.................................................85Messages....................................................86Screen Setup...............................................86Speedometer...............................................84Trailer Tow...................................................85Trip..............................................................85Vehicle Info..................................................84Instrument Panel Lens Cleaning................... 301Integrated Trailer Brake Control.................... 142Interior And Instrument Lights.........................49Interior Appearance Care.............................. 300Interior Lights...................................................49Intermittent Wipers (Delay Wipers)..................51InverterPower...........................................................67iPod/USB/MP3 Control....................................63
J
Jack Location................................................ 233Jack Operation.............................................. 236JACKING AND TIRE CHANGING
b
................ 232Jacking And Tire Changing Instructions......... 232Jacking Instructions...................................... 236Jump Starting................................................ 239
23_WD_OM_EN_USC_t.book Page 316