DI-A242
DI_a242_vdcTrailerSwayDetected
Also written as DI_A242 / DI A242 / DI_a242_vdcTrailerSwayDetected / di_a242_vdctrailerswaydetected
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-A242 mean?
Tesla alert code in the Drive Inverter (DI) module. Drive Inverter Ghosted Warning: Trailer sway has been detected Drive Inverter Warning: torque Split Stuck. Drive Inverter User Alert: This alert is set when one pedal driving module is unavailable One of the one pedal driving module's unavailable reasons are active Module becomes available or vehicle is parked Drive inverter may not be able to bring the vehicle to a stop and hold on grades when stopping mode HOLD is selected on UI
Original Description
Drive Inverter Ghosted Warning: Trailer sway has been detected Drive Inverter Warning: torque Split Stuck. Drive Inverter User Alert: This alert is set when one pedal driving module is unavailable One of the one pedal driving module's unavailable reasons are active Module becomes available or vehicle is parked Drive inverter may not be able to bring the vehicle to a stop and hold on grades when stopping mode HOLD is selected on UI
Affected Tesla Models
What You May Notice
- DI-A242 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-A242 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.