DI family
DI_a171_driveRailNotRequested
Key not detected
What does the DI_a171_driveRailNotRequested alert mean?
The drive interface (DI) electronic control unit (ECU) cannot confirm that a vehicle controller ECU requested a drive state, and as a result blocks shifting into Drive or Reverse.
What you'll see in your Tesla
- Key not detected
- Drive not authorized
What triggers it
The DI ECU does not receive a controller area network (CAN) message requesting a drive state.
When it clears
The DI ECU detects that a drive state was requested.
Potential impact
The vehicle cannot enter Drive.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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