Tire Inspection And Rotation - Pontiac Aztek 2003 Owner's Manual

To reset the system:
1. Turn the ignition to ON with the engine off.
2. Press the MODE button until the DIC reads
TIRE PRESSURE LOW: CHECK TIRES.
3. Press and hold the SET button until TIRE
PRESSURE NORMAL is displayed.
You will hear three chimes and the LOW TIRE
PRESSURE message will go off and the DIC will return
to TIRE PRESSURE NORMAL. If the LOW TIRE
PRESSURE message comes back on, the check tire
pressure system has not reset. Repeat the procedure.
The system completes the calibration process during
driving. The system "learns" the pressure at each tire
throughout the operating speed range of your vehicle.
The system normally takes between 30 and 60 minutes of
driving to learn the tire pressures. The system normally
takes 10 to 20 minutes of driving in each speed range to
"learn" tire pressures. The speed ranges are 20 to
40 mph (32 to 64 km/h), 40 to 60 mph (64 to 96 km/h)
and above 60 mph (96 km/h). This time may be longer
depending on your individual driving habits. The learning
process does not need to be completed during a single
trip. Once learned, the system will remember the tire
pressures until the system is reset.

Tire Inspection and Rotation

Tires should be rotated every 7,500 miles (12 500 km).
Any time you notice unusual wear, rotate your 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 5-55 and Wheel Replacement
on page 5-58 for more information.
Make sure the spare tire is stored securely. Push, pull,
and then try to rotate or turn the tire, If it moves,
use the folding wrench to tighten the cable. See "Storing
a Flat or Spare Tire and Tools" in Changing a Flat
Tire on page 5-62 .
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 "Part A: Scheduled
Maintenance Services," in Section 6, for scheduled
rotation intervals.
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