DI_a177_tireFitmentChanged
Not Available
What does the DI_a177_tireFitmentChanged alert mean?
The drive interface (DI) electronic control unit (ECU) detects a significant change in tire circumference ratio from front to rear axle, between square (similar circumference) and staggered (different circumference) during a drive cycle.
What you'll see in your Tesla
- Not Available
What triggers it
Set when vehicle detects the ratio of tire circumference from front to rear axle has changed between square (similar circumference) and staggered (different circumference) during a drive cycle, and tire config was not requested.
When it clears
Clear on inverter power cycle.
Potential impact
If the tire fitment change detection is a false positive (no change in front to rear tire circumference ratio), user may experience more traction control activity. No impact if detection is a true positive (a change has occurred).
Affected models
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