2. GTW
3. GAWR
4. Tongue weight rating for the trailer hitch utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight).
Towing Requirements Ð Tires
þ
Do not attempt to tow a trailer while using a compact
spare tire.
þProper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to the
Tires±General Information section of this manual on
Tire Pressures for proper tire inflation procedures.
þAlso, check the trailer tires for proper tire inflation
pressures before trailer usage.
þCheck for signs of tire wear or visible tire damage
before towing a trailer. Refer to the Tires±General
Information section of this manual on Tread Wear
Indicators for the proper inspection procedure.
þWhen replacing tires refer to the Tires±General Infor-
mation section of this manual on Replacement Tires for
proper tire replacement procedures. Replacing tires
with a higher load carrying capacity will not increase
the vehicle's GVWR and GAWR limits.
Towing Requirements Ð Trailer Brakes
þ
Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
364 STARTING AND OPERATING
6. Using the wheel wrench, finish tightening the nuts
using a crisscross pattern. Correct nut tightness is 135 ft.
lbs. (183 N´m) torque for 2500/3500 single rear wheel
(SRW) models and 145 ft. lbs. (197 N´m) for 3500 dual rear
wheel models. If in doubt about the correct tightness,
have them checked with a torque wrench by your dealer
or at a service station.
WARNING!
A loose tire or jack thrown forward in a collision or
hard stop could injure someone in the vehicle. Al-
ways stow the jack parts and the extra tire and wheel
in the places provided.
7. Install wheel center cap and remove wheel blocks. Do
not install chrome or aluminum wheel center caps on the
spare wheel. This may result in cap damage.8. Lower the jack to its fully closed position. If the jack
will not lower by turning the dial (thumbwheel) by hand,
it may be necessary to use the jack drive tube in order to
lower the jack. Stow the replaced tire, jack, and tools as
previously described.
9. Adjust the tire pressure when possible.
NOTE:Do not oil wheel studs. For chrome wheels, do
not substitute with chrome plated wheel nuts.Hub Caps/Wheel Covers
The hub caps must be removed before raising the vehicle
off the ground.
For 2500/3500 single rear wheel (SRW) models, use the
blade on the end of the lug wrench to pry the hub cap off.
Insert the blade end into the pryoff notch and carefully
pop off the hub cap with a back and forth motion.
392 WHAT TO DO IN EMERGENCIES
Cooling System
WARNING!
You or others can be badly burned by hot coolant or
steam from your radiator. If you see or hear steam
coming from under the hood, don't 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
applicable). If coolant 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 for anyaccumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
Extremely cold ambient temperatures may require the
addition of a ªwinter frontº for effective operation of the
cab heating/cooling system. Make certain that a percent-
age of the radiator is exposed for adequate air flow
through the charge air cooler and automatic transmission
oil cooler. The percentage of opening must be increased
with the increasing ambient air temperature and/or
engine load. If the cooling fan can be heard cycling
frequently, increase the size of the opening in the winter
front.
436 MAINTAINING YOUR VEHICLE
take some washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades, this will help blade
performance.
Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the batteries and clean and tighten the termi-
nals as required.
²Check the fluid levels of coolant reservoir, brake
master cylinder, and transmission and transfer case (if
equipped), add as needed.
²Check all lights and all other electrical items for correct
operation.
²Drain water from the fuel filter.
²Check Filter MinderŸ (If Equipped). Replace air
cleaner filter element if necessary.At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the U-Joints (if equipped) and front suspension
components.
²Check the automatic transmission fluid level.
²Check the manual transmission fluid level.
²Check the coolant level, hoses, and clamps.
²Lubricate outer tie rod ends (4X4) models only.
²Lubricate Front Drive Shaft Fitting (4X4).
Inspection and service should also be performed anytime
a malfunction is observed or suspected. Retain all re-
ceipts.
MAINTENANCE SCHEDULES 485
8
M
A
I
N
T
E
N
A
N
C
E
S
C
H
E
D
U
L
E
S
Adding Fuel........................... 349
Adjustable Pedals....................... 138
Air Cleaner, Engine (Engine Air Cleaner
Filter).............................419,452
Air Conditioner Maintenance............... 430
Air Conditioning Refrigerant.............430,431
Air Conditioning System................252,430
Air Conditioning System, Zone Control........ 255
Air Filter.............................. 419
Air Pressure, Tires....................325,333
Airbag............................35,48,55
Airbag Light.......................58,77,190
Airbag On/Off Switch..................... 55
Alarm, Panic............................ 24
Alarm (Security Alarm).................19,192
Alarm System (Security Alarm)............... 19
Alignment and Balance................... 332
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 245Antifreeze (Engine Coolant)..............438,439
Capacities........................... 479
Anti-Lock Warning Light...............195,314
Anti-Theft Security Alarm (Theft Alarm)........ 19
Anti-Theft System.....................19,192
Appearance Care........................ 455
Ashtray............................... 162
Assistance Towing....................... 102
Auto Unlock, Doors...................... 146
Automatic Dimming Mirror................. 85
Automatic Door Locks.................... 146
Automatic Transaxle...................... 12
Interlock System........................ 19
Automatic Transmission................... 447
Adding Fluid......................448,449
Fluid and Filter Changes................. 450
Fluid Level Check...................... 448
Fluid Type........................447,482
Shift Indicator........................ 192
506 INDEX
Radiator (Coolant Pressure)............... 439
Car Washes............................ 455
Carbon Monoxide Warning...............76,181
Cargo Light............................ 133
Cassette Tape and Player Maintenance......... 247
Catalyst Full Message..................... 425
CD (Compact Disc) Player............202,210,224
Cellular Phone.......................... 89
Center High Mounted Stop Light............ 473
Center Lap Belts......................... 45
Center Seat Storage Compartment.........167,168
Certification Label....................... 352
Charge Air Cooler....................... 442
Chart, Tire Sizing........................ 317
Check Engine Light (Malfunction Indicator
Light)................................ 194
Child Restraint........................61,62
Child Restraint Tether Anchors.............65,69
Child Seat............................62,68Cigar Lighter........................... 162
Cleaning
Wheels............................. 457
Climate Control......................... 249
Clock.....................200,204,212,225,239
Closed Crankcase Ventilation (CCV) Filter...... 426
Clutch Linkage Maintenance................ 445
Compact Disc (CD) Maintenance............. 248
Compact Spare Tire...................... 328
Compass Calibration..................... 150
Compass Variance....................... 150
Console, Overhead....................... 142
Contract, Service........................ 499
Coolant Pressure Cap (Radiator Cap).......... 439
Cooling System......................... 436
Adding Coolant (Antifreeze).............. 439
Coolant Capacity...................... 479
Coolant Level...................436,437,440
Disposal of Used Coolant................ 440
508 INDEX
Fan .................................. 442
Filters
Closed Crankcase Ventilation (CCV)......... 426
Engine Oil.....................413,416,480
Flashers
Turn Signal.......................... 133
Flat Tire Stowage.....................386,396
Fluid, Brake........................... 482
Fluid Capacities......................... 479
Fluid Level Checks
Brake............................... 444
Manual Transmission.................446,447
Power Steering........................ 431
Transfer Case......................... 446
Fluids, Lubricants and Genuine Parts.......... 480
Fog Lights.......................132,193,469
Fold Flat Load Floor..................... 174
Four Wheel Drive....................... 294
Four-Way Hazard Flasher.................. 384Freeing A Stuck Vehicle................... 400
Front Axle (Differential)................432,446
Fuel..............................348,349
Adding............................. 349
Diesel.........................348,349,480
Gauge.............................. 199
Light............................... 199
Requirements......................... 348
Specifications......................... 349
Tank Capacity........................ 479
Fuses................................ 459
Garage Door Opener (HomeLinkt) ........... 151
Gauges............................... 189
Coolant Temperature.................... 191
Fuel................................ 199
Oil Pressure.......................... 191
Speedometer......................... 190
Tachometer.......................... 190
INDEX 511
10
Illuminated Entry........................ 20
Immobilizer (Sentry Key)................... 15
Infant Restraint........................61,62
Inflation Pressure Tires.................... 333
Information Center...................... 143
Information Center, Vehicle................. 143
Inside Rearview Mirror.................... 84
Instrument Cluster....................188,189
Instrument Panel and Controls.............. 187
Instrument Panel Lens Cleaning............. 458
Integrated Power Module (Fuses)............ 459
Interior Appearance Care.................. 457
Interior Lights.......................... 129
Intermittent Wipers (Delay Wipers)........... 136
Intervention Regeneration Strategy........... 425
Introduction............................. 4
Jack Location........................... 385
Jack Operation.......................... 387Jump Starting.......................... 397
Key, Programming........................ 17
Key, Replacement........................ 16
Key, Sentry (Immobilizer)................... 15
Keyless Entry System...................... 21
Keys................................. 12
Knee Bolster............................ 48
Lane Change and Turn Signals.............. 133
Lap Belts.............................. 45
Lap/Shoulder Belts....................... 36
LATCH (Lower Anchors and Tether for
CHildren).............................. 65
Life of Tires............................ 330
Lights..............................78,129
Airbag............................58,190
Anti-Lock Warning..................195,314
Brake Warning........................ 194
INDEX 513
10