DI-A220
DI_a220_vdcUndersteerDecelActive
Also written as DI_A220 / DI A220 / DI_a220_vdcUndersteerDecelActive / di_a220_vdcundersteerdecelactive
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does DI-A220 mean?
Tesla alert code in the Drive Inverter (DI) module. Drive Inverter Warning: Stability control (VDC) is faulted Stability control (also known as vehicle dynamics control or VDC) will fault if it does not receive all of its inputs or if the values of those inputs are implausible. This alert does not indicate cause, it was mostly likely set immediately after another DI alert that points to the specific cause of the fault. This alert will clear on the drive cycle after the underlying fault cause has been corrected. Stability control is not available. The vehicle should be driven with extreme caution.
Original Description
Drive Inverter Warning: Stability control (VDC) is faulted Stability control (also known as vehicle dynamics control or VDC) will fault if it does not receive all of its inputs or if the values of those inputs are implausible. This alert does not indicate cause, it was mostly likely set immediately after another DI alert that points to the specific cause of the fault. This alert will clear on the drive cycle after the underlying fault cause has been corrected. Stability control is not available. The vehicle should be driven with extreme caution.
Affected Tesla Models
What You May Notice
- DI-A220 may appear with another Tesla alert in the Drive Inverter (DI) system.
- The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
- The alert may clear after sleep, but recurring alerts should be treated as service-relevant.
How to Diagnose and Resolve
- 1 Reboot the vehicle (hold both scroll wheels)
- 2 Check for pending OTA software updates
- 3 Monitor for recurrence over the next few days; schedule service if needed
Severity Notes
DI-A220 is an Alert in the Drive Inverter system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.