Page 121 of 734

WARNING!
•An incorrectly anchored tether strap could lead to
increased head motion and possible injury to the
child. Use only the anchorage position directly
behind the child seat to secure a child restraint top
tether strap.
• If your vehicle is equipped with a split rear seat,
make sure the tether strap does not slip into the
opening between the seatbacks as you remove
slack in the strap.
Transporting Pets
Air Bags deploying in the front seat could harm your pet.
An unrestrained pet will be thrown about and possibly
injured, or injure a passenger during panic braking or in
a collision.
Pets should be restrained in the rear seat in pet harnesses
or pet carriers that are secured by seat belts.
ENGINE BREAK-IN RECOMMENDATIONS
A long break-in period is not required for the engine and
drivetrain (transmission and axle) in your vehicle.
Drive moderately during the first 300 miles (500 km).
After the initial 60 miles (100 km), speeds up to 50 or
55 mph (80 or 90 km/h) are desirable.
While cruising, brief full-throttle acceleration within the
limits of local traffic laws contributes to a good break-in.
Wide-open throttle acceleration in low gear can be detri-
mental and should be avoided.
The engine oil installed in the engine at the factory is a
high-quality energy conserving type lubricant. Oil
changes should be consistent with anticipated climate
conditions under which vehicle operations will occur. For
the recommended viscosity and quality grades, refer to
“Maintenance Procedures” in “Maintaining Your Ve-
hicle”.
2
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 119
Page 641 of 734

Engine Oil Viscosity
SAE 5W-20 engine oil is recommended for all operating
temperatures. This engine oil improves low temperature
starting and vehicle fuel economy. The engine oil filler
cap also shows the recommended engine oil viscosity for
your engine. For information on engine oil filler cap
location, refer to “Engine Compartment” in “Maintaining
Your Vehicle” for further information.
NOTE:Vehicles equipped with a 5.7L engine must use
SAE 5W-20 oil. Failure to do so may result in improper
operation of the Multi-Displacement System (MDS). Re-
fer to “Multi-Displacement System” in “Starting and
Operating” for further information.
Lubricants which do not have both the engine oil certi-
fication mark and the correct SAE viscosity grade num-
ber should not be used. NOTE:
For 2500/3500 trucks with a 5.7L engine operat-
ing under a gross combined weight rating of 14,000 lbs (6
350 kg) or greater, SAE 5W-30 engine oil is recommended
for all operating temperatures.
Synthetic Engine Oils
You may use synthetic engine oils provided the recom-
mended oil quality requirements are met, and the recom-
mended maintenance intervals for oil and filter changes
are followed.
Disposing Of Used Engine Oil And Oil Filters
Care should be taken in disposing of used engine oil and
oil filters from your vehicle. Used oil and oil filters,
indiscriminately discarded, can present a problem to the
environment. Contact your authorized dealer, service
station or governmental agency for advice on how and
where used oil and oil filters can be safely discarded in
your area.
7
MAINTAINING YOUR VEHICLE 639
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
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