Page 117 of 743

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 115
Page 647 of 743

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 recom-
mended 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 645
Page 734 of 743

Off-Pavement Driving (Off-Road)..............422
Off-Road Driving (Off-Pavement) ..............422
Oil, Engine ............................. .643
Capacity ............................ .696
Change Interval ....................... .644
Dipstick ............................. .643
Disposal ............................. .645
Filter ............................... .646
Filter Disposal ........................ .645
Identification Logo ..................... .644
Recommendation ...................... .644
Synthetic ............................ .645
Viscosity ............................ .645
Oil Filter, Selection ....................... .646
Onboard Diagnostic System ..................639
Operating Precautions ..................... .639
Operator Manual (Owner’s Manual) .............4
Outside Rearview Mirrors ...................129
Overdrive .............................. .374Overdrive OFF Switch
..................... .374
Overhead Console ........................ .191
Overheating, Engine ...................... .264
Owner’s Manual (Operator Manual) .............4
Paint Care ............................. .668
Panic Alarm ..............................27
Parking Brake ........................... .468
Park Sense System, Rear ....................180
Passing Light ........................... .168
Pedals, Adjustable ........................ .175
Personal Settings ......................... .283
Pets ...................................115
Pets, Transporting .........................115
Pickup Box ............................. .226
Placard, Tire and Loading Information ..........494
Power Distribution Center (Fuses) ................675
Door Locks ............................
36
732 INDEX