Unified Engagement Mode (UEM) in sunnypilot
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.
Try Unified Engagement Mode (UEM) in the settings explorer →
Where to find it
- 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.