Page 624 of 734

CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the transmission in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce the
risk of clutch or transmission failure during prolonged
efforts to free a stuck vehicle.
NOTE: Push the ESC Off switch, to place the Electronic
Stability Control (ESC) system in Partial Offmode, before
rocking the vehicle. Refer to “Electronic Brake Control” in
“Starting And Operating” for further information. Once
the vehicle has been freed, push the ESC Offswitch again
to restore ESC Onmode.
WARNING!
Fast spinning tires can be dangerous. Forces generated
by excessive wheel speeds may cause damage, or even
failure, of the axle and tires. A tire could explode and
injure someone. Do not spin your vehicle’s wheels
faster than 30 mph (48 km/h) or for longer than 30
seconds continuously without stopping when you are
stuck and do not let anyone near a spinning wheel, no
matter what the speed.
CAUTION!
•When “rocking” a stuck vehicle by shifting between
DRIVE/2nd gear and REVERSE, do not spin the
wheels faster than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure. It
can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmis-
sion shifting occurring).
622 WHAT TO DO IN EMERGENCIES
Page 663 of 734

CAUTION!
•The catalytic converter requires the use of unleaded
fuel only. Leaded gasoline will destroy the effective-
ness of the catalyst as an emissions control device
and may seriously reduce engine performance and
cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
Under normal operating conditions, the catalytic converter
will not require maintenance. However, it is important to
keep the engine properly tuned to assure proper catalyst
operation and prevent possible catalyst damage.
NOTE: Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you. In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe and
abnormal catalyst overheating. If this occurs, stop the
vehicle, turn off the engine and allow it to cool. Service,
including a tune-up to manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter damage:
•
Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
• Do not try to start the engine by pushing or towing the
vehicle.
• Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough idle
or malfunctioning operating conditions.
7
MAINTAINING YOUR VEHICLE 661
Page 683 of 734
CavityCartridge Fuse Micro Fuse Description
F01 80 Amp Black –Rad Fan Control Module – If Equipped
F03 60 Amp Yellow –Rad Fan – If Equipped
F05 40 Amp Green –Compressor for Air Suspension –
If Equipped
F06 40 Amp Green –Antilock Brakes/Electronic Stability Control
Pump
F07 40 Amp Green –Starter Solenoid
F08 20 Amp Blue
(1500 LD/Cummins Diesel) –
Emissions Diesel – If Equipped
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
7
MAINTAINING YOUR VEHICLE 681
Page 724 of 734

Instrument Cluster..................... .244, 263
Instrument Cluster Display Instrument Cluster Display ..................267
Instrument Panel And Controls .................235
Instrument Panel Lens Cleaning ................677
Integrated Trailer Brake Controls ................562
Interior Appearance Care .....................676
Interior Lights ............................ .143
Intermittent Wipers (Delay Wipers) ..............148
Introduction ................................4
Inverter Outlet (115V) ...................... .189
Jack Location ......................... .583, 600
Jump Starting ............................ .618
Key Fob Programming Additional Key Fobs .............18
Key Fob Battery Service (Remote Keyless Entry) .....25
Key Fob Programming (Remote Keyless Entry) ......21
Key Fob, Remote Keyless Entry .................21
Key-In Reminder ............................17
Keyless Enter-N-Go ..................... .36, 382
Lock The Vehicle’s Doors ................295, 315
Passive Entry ............................36
Passive Entry Programming ...........36, 295, 315 Keyless Entry System
........................21
Key, Replacement ...........................18
Keys ....................................11
Key, Sentry (Immobilizer) ......................17
Lane Change And Turn Signals .................146
Lane Change Assist ........................ .147
Latches ..................................98
Lead Free Gasoline ........................ .541
Leaks, Fluid ...............................98
Life Of Tires ............................. .526
Light Bulbs ........................... .98, 688
Lights ............................... .98, 138
AirBag ............................ .96, 241
Automatic Headlights .....................139
Brake Assist Warning ..................... .503
Brake Warning ......................... .242
Bulb Replacement ....................... .690
Cap
Top Clearance ...................... .694
Cargo................................ .146
Center Mounted Stop ..................... .693
Courtesy/Reading .................144, 145, 174
Cruise ......................... .263, 264, 265
Daytime Running ....................... .140
Engine Temperature Warning ................244
722 INDEX