Page 632 of 734
ENGINE COMPARTMENT — 3.6L
1 — Air Cleaner Filter5 — Battery
2 — Engine Oil Dipstick 6 — Washer Fluid Reservoir
3 — Engine Oil Fill 7 — Power Distribution Center (Fuses)
4 — Brake Fluid Reservoir 8 — Engine Coolant Reservoir
630 MAINTAINING YOUR VEHICLE
Page 633 of 734
ENGINE COMPARTMENT — 4.7L
1 — Air Cleaner Filter6 — Power Distribution Center (Fuses)
2 — Automatic Transmission Dipstick 7 — Washer Fluid Reservoir
3 — Engine Oil Dipstick 8 — Engine Oil Fill
4 — Brake Fluid Reservoir 9 — Coolant Pressure Cap
5 — Battery 10 — Engine Coolant Reservoir
7
MAINTAINING YOUR VEHICLE 631
Page 634 of 734
ENGINE COMPARTMENT — 5.7L
1 — Air Cleaner Filter7 — Washer Fluid Reservoir
2 — Automatic Transmission Dipstick 8 — Power Distribution Center (Fuses)
3 — Engine Oil Fill 9 — Power Steering Fluid Reservoir (2500/3500 Models Only)
4 — Engine Oil Dipstick 10 — Coolant Pressure Cap
5 — Brake Fluid Reservoir 11 — Engine Coolant Reservoir
6 — Battery 632 MAINTAINING YOUR VEHICLE
Page 639 of 734

CAUTION!(Continued)
•Your vehicle has been built with improved fluids
that protect the performance and durability of your
vehicle and also allow extended maintenance inter-
vals. Do not use chemical flushes in these compo-
nents as the chemicals can damage your engine,
transmission, power steering or air conditioning.
Such damage is not covered by the New Vehicle
Limited Warranty. If a flush is needed because of
component malfunction, use only the specified
fluid for the flushing procedure.
Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. Check
the oil level at regular intervals, such as every fuel stop. The best time to check the engine oil level is about five
minutes after a fully warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings. Always
maintain the oil level within the SAFE zone on the
dipstick. Adding one quart of oil when the reading is at
the bottom of the SAFE zone will result in a reading at the
top of the safe zone on these engines.
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
7
MAINTAINING YOUR VEHICLE 637
Page 662 of 734

Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the EVICdisplay, and operate the vehicle as required to reach
the normal operating temperature.
2. Park the vehicle on level ground.
3. Run the engine at normal idle speed for at least 60 seconds, and leave the engine running for the rest of
this procedure.
4. Fully apply the parking brake and press the brake pedal.
5. Place the shift lever momentarily into each gear posi- tion (allowing time for the transmission to fully en-
gage in each position), ending with the lever in PARK.
6. Remove the dipstick, wipe it clean and reinsert it until seated. 7. Remove the dipstick again and note the fluid level on
both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid
if the actual level is at or above the hole. The fluid level
should be between the “HOT” (upper) reference holes
on the dipstick at normal operating temperature. If the
fluid level is low, add fluid through the dipstick tube
to bring it to the proper level. Do not overfill.Use
ONLY the recommended fluid (see Fluids, Lubri-
cants, and Genuine Parts for fluid specifications).
After adding any quantity of oil through the dipstick
tube, wait a minimum of two minutes for the oil to
fully drain into the transmission before rechecking the
fluid level.
660 MAINTAINING YOUR VEHICLE
Page 699 of 734
Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.
At Every Oil Change Interval As Indicated By OilChange Indicator System:
•Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregu-
lar wear, even if it occurs before the oil indicator
system turns on.
• Inspect battery and clean and tighten terminals as
required.
• Inspect automatic transmission fluid if equipped
with dipstick.
At Every Oil Change Interval As Indicated By Oil
Change Indicator System:
•Inspect brake pads, shoes, rotors, drums, hoses
and park brake.
• Inspect engine cooling system protection and
hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or
off-road conditions.
• Lube the front drive shaft fitting (2500/3500 (4x4)
models only).
8
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SMAINTENANCE SCHEDULES 697
Page 726 of 734

Dipstick............................. .637
Disposal ............................. .639
Filter ............................... .640
Filter Disposal ........................ .639
Identification Logo ..................... .638
Recommendation ...................... .638
Synthetic ............................ .639
Viscosity ............................ .639
Oil Filter, Selection ....................... .640
Onboard Diagnostic System ..................633
Operating Precautions ..................... .633
Operator Manual (Owner’s Manual) .............4
Outside Rearview Mirrors ...................133
Overdrive .............................. .374
Overdrive OFF Switch ..................... .374
Overhead Console ........................ .194
Overheating, Engine ...................... .266
Owner’s Manual (Operator Manual) .............4Paint Care
............................. .661
Panic Alarm ..............................28
Parking Brake ........................... .467
Park Sense System, Rear ....................184
Passing Light ........................... .172
Pedals, Adjustable ........................ .179
Personal Settings ......................... .285
Pets ...................................119
Pets, Transporting .........................119
Pickup Box ............................. .229
Placard, Tire and Loading Information ..........489
Power Distribution Center (Fuses) ................668
Door Locks ............................36
Mirrors ............................. .136
Outlet (Auxiliary Electrical Outlet) ...........208
Seats ............................... .141
Sliding Rear Window ....................226
Steering ............................. .465
724 INDEX