DI-A251
DI_a251_diPowerOnStateMismatch
Also written as DI_A251 / DI A251 / DI_a251_diPowerOnStateMismatch / di_a251_dipoweronstatemismatch
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-A251 mean?
Tesla alert code in the Drive Inverter (DI) module. Drive Inverter User Alert: Autopark aborted info from manualDI_A185 Drive Inverter Warning: 12V supply under voltage detected in hardware 12V supply to DI is disconnected or drops below lower voltage threshold Unable to produce torque/power from drive unit Drive Inverter Warning: ADC high-reference bad Drive Inverter User Alert: Cruise unavailable due to unbuckled seatbelt Drive Inverter Warning: PCS (Power Conversion System) node is MIA on CAN for one or multiple messages
Original Description
Drive Inverter User Alert: Autopark aborted info from manualDI_A185 Drive Inverter Warning: 12V supply under voltage detected in hardware 12V supply to DI is disconnected or drops below lower voltage threshold Unable to produce torque/power from drive unit Drive Inverter Warning: ADC high-reference bad Drive Inverter User Alert: Cruise unavailable due to unbuckled seatbelt Drive Inverter Warning: PCS (Power Conversion System) node is MIA on CAN for one or multiple messages
Affected Tesla Models
What You May Notice
- DI-A251 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-A251 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.