Page 473 of 534

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.
Cooling System
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) or steam from your radiator. If you
(Continued)
WARNING! (Continued)
see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool.
Never try to open a cooling system pressure cap when
the radiator is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where appli-
cable). If the engine coolant (antifreeze) is dirty or rusty in
appearance, the system should be drained, flushed and
refilled with fresh coolant. Check the front of the A/C
condenser (if equipped) or radiator for any accumulation
of bugs, leaves, etc. If dirty, clean by gently spraying water
from a garden hose vertically down the face of the A/C
condenser (if equipped) or the back of the radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks.
With the engine at normal operating temperature (but not
running), check the cooling system pressure cap for proper
vacuum sealing by draining a small amount of engine
7
MAINTAINING YOUR VEHICLE 471
Page 489 of 534
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 (Spe-
cial 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
7
MAINTAINING YOUR VEHICLE 487
Page 524 of 534

Inverter Outlet (115V)...................... .177
Jack Location ............................ .429
Jump Starting ............................ .436
Key Fob Programming Additional Key Fobs .............18
Key Fob Battery Service (Remote Keyless Entry) .....24
Key Fob Programming (Remote Keyless Entry) ......21
Key Fob, Remote Keyless Entry .................21
Key-In Reminder ............................16
Keyless Enter-N-Go ..................... .34, 322
Lock The Vehicle’s Doors ................247, 264
Passive Entry ............................34
Passive Entry Programming ...........34, 247, 264
Keyless Entry System ........................21
Key, Replacement ...........................18
Keys ....................................11
Key, Sentry (Immobilizer) ......................17
Lane Change And Turn Signals .................137
Lane Change Assist ........................ .138
Latches ..................................98
Lead Free Gasoline ........................ .396
Leaks, Fluid ...............................98 Life Of Tires
............................. .383
Light Bulbs ................................98
Lights ............................... .98, 129
AirBag ......................... .55, 96, 201
Automatic Headlights .....................130
Brake Assist Warning ..................... .360
Brake Warning ......................... .202
Bulb Replacement .....................493, 494
Cap Top Clearance ...................... .498
Cargo................................ .137
Center Mounted Stop ..................... .496
Courtesy/Reading .................135, 136, 164
Cruise ......................... .220, 221, 222
Daytime Running ....................... .131
Engine Temperature Warning ................204
Exterior ................................98
Fog........................... .133, 216, 496
Four-Wheel Drive Indicator .................341
Hazard Warning Flasher ...................426
Headlights ............................ .130
High
Beam ............................ .138
High Beam/Low Beam Select ................138
Hill Descent Control Indicator ...............362
Illuminated Entry .........................21
Interior ..................... .134, 135, 136, 164
522 INDEX