Tire Inspection And Rotation - Pontiac Grand Prix 2007 Owner's Manual

The Tire Pressure Monitor System (TPMS)
operates on a radio frequency and complies with
RSS-210 of Industry and Science Canada.
Operation is subject to the following two
conditions:
1. This device may not cause interference.
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Changes or modifications to this system by other
than an authorized service facility could void
authorization to use this equipment.
420

Tire Inspection and Rotation

Tire rotation is not recommended if your vehicle is
a GXP model equipped with P255/45R18 size
tires on the front wheels and P225/50R18 size tires
on the rear wheels. Different tire sizes front to
rear should not be rotated.
Tire rotation is recommended if the original
equipment tires installed on your vehicle are of the
same size and type on all four tire/wheel positions.
Original equipment tires of the same size and type
should be rotated every 5,000 to 8,000 miles
(8 000 to 13 000 km).
Any time you notice unusual wear, rotate your
vehicle's tires as soon as possible and check the
wheel alignment. Also check for damaged tires
or wheels. See When It Is Time for New Tires on
page 422 and Wheel Replacement on page 426
for more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The
first rotation is the most important. See Scheduled
Maintenance on page 480 for scheduled rotation
intervals.