About sunnypilot

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Driving modes

Dynamic Experimental Control

Automatically chooses between sunnypilot cruise and model-led acceleration and braking while Experimental Mode is active.

Requires sunnypilot acceleration and braking control for your car. Experimental Mode must also be enabled.

Find itSunnylink → Cruise → Dynamic Experimental Control

On comma four, change this in Sunnylink.

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sunnylink Settings previewCruise
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Tap a setting. Swipe left or right to change pages. Illustrated from the release code; your car and software determine which controls appear.

Sources and availability

An illustrated settings screen, without a connection to a real device. Your car, installed version and other settings can change which controls appear.

Checked 2026-09-30. Example switches do not show your device’s current settings.

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More about Dynamic Experimental Control

Experimental Mode lets the driving model attempt acceleration and braking decisions. Dynamic Experimental Control (DEC) adds automatic switching between regular adaptive cruise behavior and model-led behavior while Experimental Mode is active.

For comma four, use Sunnylink → Cruise → Dynamic Experimental Control. On comma 3X, the on-device path is Settings → Cruise → Enable Dynamic Experimental Control; Sunnylink also exposes the control.

Both switches matter: Experimental Mode must be active and Dynamic Experimental Control must be enabled. The car must support sunnypilot acceleration and braking control. DEC does not add that support to an incompatible car.

Automatic switching is experimental driving assistance. It does not guarantee correct stops or reliable decisions; continue supervising and be ready to take over.

Other forks may offer automatic switching under different names and conditions. A shared goal does not mean their controls or behavior are identical.

Browse all 164 setting explanations

Includes device menus and Sunnylink settings. Availability depends on your device, car and software.

About this guide

Reviewed device and phone settings for sunnypilot, checked 2026-09-30. Each control links to its exact source version.

The previews use example values and never connect to your device. They illustrate the reviewed controls shown in this guide; account setup, downloads and other app workflows are not simulated.

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