Tire Calibration

Tire Calibration




As the vehicle moves, the navigation system receives speed pulses from the PCM. These pulses are converted using a conversion factor to a mph speed that moves the vehicle position (VP) on the map. The navigation system has an internal tuning function that generates and refines this factor based on actual driving. The "Level" indicates the status of the tuning.
- The "Auto Tuning" is factory set to "ON," and should remain on.
- The "Study" indicates the tuning status.
- The "Tire - Cal. Tuning" and "Set" should not be used. It is for factory use only.