Cadillac 2009 XLR Automobile User Manual


 
Tire Inspection and Rotation
We recommend that you regularly inspect your
vehicle’s tires for signs of wear or damage.
See When It Is Time for New Tires on page 6-61
for additional information.
If your vehicle has P235/50R18 size tires they
should be rotated any time you notice unusual
wear. Rotate the tires as soon as possible and
check wheel alignment. Also check for damaged
tires or wheels. See When It Is Time for New Tires
on page 6-61 and Wheel Replacement on
page 6-66.
When rotating P235/50R18 size tires, always use
the correct rotation pattern shown here.
After the tires have been rotated, adjust the front
and rear inflation pressures as shown on the Tire
and Loading Information label, see Inflation - Tire
Pressure on page 6-54 and Loading the Vehicle on
page 5-21. Vehicles that have the Tire Pressure
Monitor System (TPMS) need the TPMS sensors
reset after a tire rotation is performed. A special tool
is needed to reset the sensor identification codes.
See your dealer/retailer for service. Make certain
that all wheel nuts are properly tightened. See
Wheel Replacement on page 6-66 and “Wheel Nut
Torque” under Capacities and Specifications on
page 6-90
.
{ CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause a crash. When you
change a wheel, remove any rust or dirt from
places where the wheel attaches to the
vehicle. In an emergency, you can use a
cloth or a paper towel to do this; but be sure
to use a scraper or wire brush later, if you
need to, to get all the rust or dirt off.
6-60