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The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
4-Pin Connector
1 — Female Pins4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
7-Pin Connector
1 — Battery5 — Ground
2 — Backup Lamps 6 — Left Stop/Turn
3 — Right Stop/Turn 7 — Running Lamps
4 — Electric Brakes
394 STARTING AND OPERATING
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HAZARD WARNING FLASHERThe Hazard Warning flasher switch is mounted on the
top of the steering column.Press the switch to turn on the Hazard Warning
flasher. When the switch is activated, all directional
turn signals will flash on and off to warn oncoming
traffic of an emergency. Press the switch a second time to
turn off the Hazard Warning flasher.
This is an emergency warning system and should not be
used when the vehicle is in motion. Use it when your
vehicle is disabled and is creating a safety hazard for
other motorists.
When you must leave the vehicle to seek assistance, the
Hazard Warning flasher will continue to operate even
though the ignition switch is OFF.
NOTE: With extended use, the Hazard Warning flasher
may discharge your battery.
Hazard Warning Flasher Switch
406 WHAT TO DO IN EMERGENCIES
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CAUTION!
Never use a floor jack directly under the differential
housing of a loaded truck or damage to your vehicle
may result.JUMP-STARTING PROCEDURESDo not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic transmis-
sion cannot be started this way. Also, there is a greater
risk of an accident when a vehicle is being pushed or
towed. If the vehicle has a discharged battery, booster
cables may be used to obtain a start from a booster
battery or the battery in another vehicle. This type of start
can be dangerous if done improperly, so follow this
procedure carefully.
WARNING!
•
Battery fluid is a corrosive acid solution; do not
allow battery fluid to contact eyes, skin or cloth-
ing. Don’t lean over battery when attaching
clamps or allow the clamps to touch each other. If
acid splashes in eyes or on skin, flush contami-
nated area immediately with large quantities of
water.
•
A battery generates hydrogen gas which is flam-
mable and explosive. Keep flame or spark away
from the vent holes.
•
Do not use a booster battery or any other booster
source that has a greater than 12-Volt system, i.e.,
do not use a 24-Volt power source.
1. Remove all metal jewelry such as watch bands or
bracelets which might make an unintended electrical
contact.
WHAT TO DO IN EMERGENCIES 419
6
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2. Park the booster vehicle within cable reach but with-
out letting the vehicles touch. Set the parking brake on
both vehicles, place the automatic transmission in PARK
and turn the ignition OFF.
3. Turn off the heater, radio, and all unnecessary electri-
cal loads.
4. Connect one end of a jumper cable to the positive
terminal of the booster battery. Connect the other end of
the same cable to the positive terminal of the discharged
battery.
WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result.5. Connect the other cable; first to the negative terminal
of the booster battery, and then to the engine of the
vehicle with the discharged battery. Make sure you have
a good contact on the engine.
WARNING!
•
You should not try to start your vehicle by pushing
or towing.
•
Do not connect the cable to the negative post of the
discharge battery. The resulting electrical spark
could cause the battery to explode.
•
During cold weather when temperatures are be-
low freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump-starting
because the battery could rupture or explode. The
battery temperature must be brought up above
freezing point before attempting jump-start.
420 WHAT TO DO IN EMERGENCIES
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6. Start the engine in the vehicle which has the booster
battery, let the engine idle a few minutes, then start the
engine in the vehicle with the discharged battery.
7. When removing the jumper cables, reverse the above
sequence exactly. Be careful of the moving belts and fan.
WARNING!
Any procedure other than above could result in:•
Personal injury caused by electrolyte squirting out
the battery vent.
•
Personal injury or property damage due to battery
explosion.
•
Damage to charging system of booster vehicle or
of immobilized vehicle.
FREEING A STUCK VEHICLEIf the vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the shift lever
rhythmically between DRIVE and REVERSE, while ap-
plying slight pressure to the accelerator.
In general, the least amount of accelerator pedal pressure
to maintain the rocking motion without spinning the
wheels or racing the engine, is most effective. Racing the
engine or spinning the wheels, due to the frustration of
not freeing the vehicle, may lead to transmission over-
heating and failure. Allow the engine to idle with the
shift lever in NEUTRAL for at least one minute after
every five rocking-motion cycles. This will minimize
overheating and reduce the risk of transmission failure
during prolonged efforts to free a stuck vehicle.
WHAT TO DO IN EMERGENCIES 421
6
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MAINTAINING YOUR VEHICLE
CONTENTSEngine Compartment— 5.7L ............. 427
Onboard Diagnostic System (OBD II) ...... 428
▫ Loose Fuel Filler Cap Message .......... 428
Emissions Inspection And Maintenance
Programs ............................ 429
Replacement Parts .................... 430
Dealer Service ....................... 430
Maintenance Procedures ................ 431
▫ Engine Oil ........................ 431
▫ Engine Oil Filter .................... 433 ▫
Engine Air Cleaner Filter .............. 434
▫ Maintenance-Free Battery ............. 434
▫ Air Conditioner Maintenance ........... 435
▫ Front Prop Shaft Lubrication — 2500/3500
(4X4) Models ....................... 436
▫ Body Lubrication ................... 437
▫ Windshield Wiper Blades ............. 437
▫ Adding Washer Fluid ................ 438
▫ Exhaust System .................... 438
7
Page 429 of 532
ENGINE COMPARTMENT— 5.7L1 — Air Cleaner Filter7 — Power Steering Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Engine Oil Dipstick
3 — Engine Oil Fill 9 — Washer Fluid Reservoir
4 — Brake Fluid Reservoir 10 — Engine Coolant Reservoir
5 — Battery 11 — Coolant Pressure Cap
6 — Integrated Power Module MAINTAINING YOUR VEHICLE 427
7
Page 431 of 532

appear the next time the vehicle is started. This might
indicate a damaged cap. If the problem is detected twice
in a row, the system will turn on the MIL. Resolving the
problem will turn the MIL light off.EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMSIn some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.For states that require an Inspection and Mainte-
nance (I/M), this check verifies the Malfunction
Indicator Light (MIL) is functioning and is not on
when the engine is running, and that the OBD II system
is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see the MIL symbol come on as part of a normal bulb
check.
MAINTAINING YOUR VEHICLE 429
7