All BluePilot settings

Unified Engagement Mode (UEM) in BluePilot

See what it does and where to find it on your comma or phone.

Interactive guide · no connection needed

Customize MADS

Unified Engagement Mode (UEM)

Engages steering and speed assistance together with cruise. Steering can stay active after cruise stops. Switch off separate steering assistance or the car to end it.

Requires the device is out of driving mode. Unavailable on Rivian. Tesla requires access to the car’s communication system. Open this submenu when Separate steering and speed assistance is on. Located inside the steering-assistance settings.

Find itSunnylink → Steering → MADS Settings → Unified Engagement Mode (UEM)

On comma four, change this in Sunnylink.

Show me where
sunnylink Settings previewSteering · MADS Settings
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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.

Source for this control ↗

What Unified Engagement Mode (UEM) does

Engages steering and speed assistance together with cruise. Steering can stay active after cruise stops. Switch off separate steering assistance or the car to end it.

Where to find it

  • comma 3X · On the device: Settings → Steering → Customize MADS → Unified Engagement Mode (UEM). Open Customize MADS while parked with MADS enabled. Rivian and certain Tesla configurations force this on.
  • comma four · Sunnylink: Sunnylink → Steering → MADS Settings → Unified Engagement Mode (UEM). Requires the device is out of driving mode. Unavailable on Rivian. Tesla requires access to the car’s communication system. Open this submenu when Separate steering and speed assistance is on. Located inside the steering-assistance settings.
  • comma 3X · Sunnylink: Sunnylink → Steering → MADS Settings → Unified Engagement Mode (UEM). Requires the device is out of driving mode. Unavailable on Rivian. Tesla requires access to the car’s communication system. Open this submenu when Separate steering and speed assistance is on. Located inside the steering-assistance settings.
Sources for this explanation

Checked 2026-09-30 against the release source. This guide illustrates controls; it is not a test on your car.

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

About this guide

Reviewed device and phone settings for BluePilot, 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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