UPDATE 03.12.2026
COMMA4 USERS SHOULD NOW INSTALL BP-6.0
https://bluepilot.dev/2026/02/28/bluepilot-6-0-is-now-in-open-beta/
======================================================
Everything below here is OBSOLETE
======================================================
BluePilot now has limited support for the comma 4. Please see the following notes:
Edit: As of 12.24.2025 bp-c4-basic was synced with sunnypilot master, so there is no longer a need to install sunnypilot first to pair your device to sunny link. Also the updated master includes the ability to select your vehicle from sunnylink, so the vehicle specific branches are not needed. Simply use this URL to install bp-c4-basic
installer.comma.ai/BluePilotDev/bp-c4-basic
The following BluePilot features are implimented.
Human Turn Reset
Lane Change Factor
Predicted Curvature Blend Ratio High
Predicted Curvature Blend Ratio Low
Enabled Advanced Lane Positioning
Enabled Lanefull Mode
Custom in-lane position
BlueCruise Hands Free Display on dash for supported vehicles.
When using the microscopic scrreen on the device, these settings are in the “BluePilot” menu. When accessing sunnylink, the settings arein the “other” menu.
For support leave a post on the sunnypilot discord channel dedicated to BluePilot on the C4:
https://community.sunnypilot.ai/t/bluepilot-on-the-comma4/1261/31
OLDER INFORMATION
Before installing BluePilot, you need to install the custom branch of sunnypilot designed to link the Comma4 to sunnylink. This way, you will be able to manage the device menu from your phone. Given the small screen on the Comma4, this is important.
Use this URL to install sunnypilot and link your device to sunnylink:
https://dev.sunnypilot.ai
Once you have installed sunny-dev and linked your Comma4 to your sunnylink account, you can then uninstall the branch and the device will stay linked. To uninstall mici-sunnylink, tap the screen during a reboot to trigger a factory reset. After it is reset, use the desired BluePilot URL to install Bluepilot (URLs are case sensitive).
As of 12.17.2025, it is not possible to force a fingerprint on the Comma4 using the menu system, hopefully this will come soon. Until then, if you have a CANFD vehicle you can use the following URLS to install a vehicle specific branch:
installer.comma.ai/BluePilotDev/bp-c4-basic-mme (Mustang MachE. and 2023+ Escape)
installer.comma.ai/BluePilotDev/bp-c4-basic-f150 (F150)
installer.comma.ai/BluePilotDev/bp-c4-basic-lightning (Lightning)
CAN Vehicles should be able to fingerprint automatically and can use the branch with no forced vehicle selection:
installer.comma.ai/BluePilotDev/bp-c4-basic