CAUTION!
•
Drive cautiously and avoid severe turns and large
bumps, especially with a loaded vehicle.
•
Do not drive for a prolonged period on dry
pavement.
•
Observe the traction device manufacturer’s
instructions on the method of installation, operat-
ing speed, and conditions for use. Always use the
suggested operating speed of the device manufac-
turer if it is less than 30 mph (48 km/h).
•
Do not use traction devices on a compact spare
tire.
TIRE ROTATION
RECOMMENDATIONS
Tires on the front and rear axles of vehicles operate at
different loads and perform different steering, driving,
and braking functions. For these reasons, they wear at
unequal rates.
These effects can be reduced by timely rotation of tires.
The benefits of rotation are especially worthwhile with
aggressive tread designs such as those on all season
type tires. Rotation will increase tread life, help to main-
tain mud, snow and wet traction levels and contribute
to a smooth, quiet ride.
Refer to the “Maintenance Plan” for the proper mainte-
nance intervals. More frequent rotation is permissible if
desired. The reasons for any rapid or unusual wear
should be corrected prior to rotation being performed.
The suggested rotation method is the “rearward cross”
shown in the following diagram. This rotation pattern
does not apply to some directional tires that must not
be reversed.
Dual Rear Wheels — If Equipped
The tires used on dual wheel assemblies should be
matched for wear to prevent overloading one tire in a
set. To check if tires are even, lay a straight edge across
all four tires. The straight edge should touch all the
tires.
NOTE:
If your vehicle is equipped with a Tire Pressure Informa-
tion System (TPIS):
•
The Tire Pressure Information System (TPIS) uses
unique sensors in the inner rear wheels to help
identify them from the outer rear wheels, because
of this, the inner and outer wheel locations can’t be
switched.
•
After a tire rotation is completed, as shown below,
the system can auto learn the locations of each sen-
sor ID. Auto learning/localization occurs when the
vehicle ignition status is changed from Off to On and
speeds of greater than 5 mph (8km/h) are obtained
and remain over 5 mph (8km/h) for at about a
15 minute period. You may need to drive for 20 min-
utes to account slower speeds and stops.
•
If the tires are rotated incorrectly, The auto localiza-
tion of the TPIS sensors will fail to locate correctly
resulting in incorrect locations for the pressure val-
ues displayed in the instrument cluster.
CAUTION!
•
3500 Dual Rear Tires may only have one approved
direction of rotation. This is to accommodate the
asymmetrical design (tread pattern) of the On/Off-
Road tire and the use of Outline White Letter
(OWL) tires.
•
When replacing a flat, the spare tire may have to
be remounted on the rim, or installed at a different
location, to maintain the correct placement of the
tire on the wheel relative to the tire/wheel position
on the truck. For example, if the spare is used to
replace an outer rear tire it will have to be
remounted on the rim so that the wheel is dished
(Continued)
Tire Rotation (Rearward Cross)
Tire Rotation
324
SERVICING AND MAINTENANCE
