EN Tesla Automatic Turn Signals

Tesla Automatic Turn Signals

Menu: Driving > Start & Auto > Engage

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Tesla Automatic Turn Signals

TeslaAutoTurnSignals

Control Model 3/Y turn signals for existing ATC turns and lane changes when vehicle CAN and valid physical stalk input are available. Driver input takes priority; steering and departure permissions are unchanged. Default OFF; reboot after changes. Closed-course validation is required before road use.

• Type: Toggle
• Default: 0
• Range: 0 ~ 1
• Menu: Driving > Start & Auto > Engage

Requests lamps through the existing maneuver; turns require started-turn and stable straightening evidence independently of the steering desire. Each repeat needs a new idle template and TX echo; missing templates or lost feedback ends the automatic session. Unknown/automatic lamps are not driver confirmation. Stalk input, hazards or an unexpected opposite lamp stops automatic output; cleanup cancellation waits for fresh idle stalk and stable actual OFF. Unconfirmed cancellation stops further automatic output for this onroad cycle.

Default OFF; reboot after changing. Requires supported Model 3/Y, CAN1 extension detection shared with the speed wheel (0x3DF), fresh physical stalk input and matching Panda firmware. CAN1 stalk input is preferred once observed; stale or conflicting input blocks output. Lamp-specific templates and UI/physical feedback are still required. App requests last through the existing maneuver. blocked:* and waiting:* diagnostics identify blockers; they are not new on-screen alerts. It does not grant steering or departure permission. Validate both directions and failure/manual takeover on the exact vehicle in a closed course before road use. CAN or device power loss cannot guarantee lamp cancellation.

Execution: openpilot/selfdrive/car/tesla_turn_signals.py. Intent: openpilot/selfdrive/controls/lib/desire_helper.py. Safety: opendbc_repo/opendbc/safety/safety/safety_tesla_turn_signals.h. See the Tesla user guide for diagnostics and limitations.