Experimental acceleration and braking control in sunnypilot
Switches eligible cars to experimental sunnypilot acceleration and braking control. The source warns this can disable Automatic Emergency Braking.
Try Experimental acceleration and braking control in the settings explorer →
Where to find it
- comma four · On the device: Settings → developer → alpha longitudinal. Car-specific. The real confirmation warns that Automatic Emergency Braking may be disabled.
- comma 3X · On the device: Settings → Developer → sunnypilot Longitudinal Control (Alpha). Car-specific. The real confirmation warns that Automatic Emergency Braking may be disabled.
- comma four · Sunnylink: Sunnylink → Developer → sunnypilot Longitudinal Control (Alpha). Shown when experimental speed control (Alpha) is available and supported cruise-button control (ICBM) is inactive. Requires driving assistance is disengaged. Changing the real setting can require a driving-state restart.
- comma 3X · Sunnylink: Sunnylink → Developer → sunnypilot Longitudinal Control (Alpha). Shown when experimental speed control (Alpha) is available and supported cruise-button control (ICBM) is inactive. Requires driving assistance is disengaged. Changing the real setting can require a driving-state restart.
Sources for this explanation
Checked 2026-09-30 against the release source. This guide illustrates controls; it is not a test on your car.