COR Brief
Robotics & Hardware

Sunnypilot

Sunnypilot is an open source driver assistance system built as a fork of comma.ai's openpilot. It enhances Adaptive Cruise Control, Automated Lane Centering, Forward Collision Warning, and Lane Departure Warning for over 350 supported car makes and models. The system includes camera-based Driver Monitoring that alerts drivers if distracted or asleep. It operates on comma devices such as the comma four, connected via compatible car harnesses, and offers features like real-time diagnostics, enhanced automatic lane changes with Blind Spot Monitoring, and selectable driving models through its user interface and remote dashboard integration. Installation involves verifying vehicle compatibility, obtaining the necessary hardware from comma.ai, and loading Sunnypilot's custom software URL onto the device. Users can also pair their device with sunnylink for secure remote management and access to additional settings. Sunnypilot is free to install and use as open source software but requires proprietary hardware from comma.ai. The project maintains active development with regular updates synchronized with the upstream openpilot repository and adds new vehicle models and driving models.

Updated Jan 5, 2026open-source

Open source driver assistance system enhancing openpilot features for 350+ car models using comma.ai hardware.

Pricing
open-source
Category
Robotics & Hardware
Company
Interactive PresentationOpen Fullscreen ↗
01
Supports customizable lane changes using blinker or steering nudge with obstacle prevention via Blind Spot Monitoring.
02
Allows switching between legacy and new driving models like Certified Herbalist v2 or Farmville through the Sunnypilot UI and sunnylink dashboard.
03
Enables secure remote access and real-time dashboard management of comma devices.
04
Includes Driving Personality, Dynamic Lane Profile, Dynamic Experimental Control, and Speed Limit Control for customizable driving experience.
05
Compatible with over 350 car makes and models, including recent additions like Hyundai Kona Non-SCC 2019 and Kia Seltos Non-SCC 2023-24.

Upgrading Stock ADAS

Drivers with supported vehicles who want to enhance their factory Advanced Driver Assistance Systems using open source software.

Remote Device Management

Users who want to monitor and adjust their comma device settings remotely via sunnylink integration.

1
Verify Vehicle Compatibility
Check if your car model is among the 350+ supported vehicles.
2
Obtain Hardware
Purchase a comma four device and compatible car harness from the comma.ai shop.
3
Install Sunnypilot Software
Enter Sunnypilot's custom software URL on your comma device and follow the setup guide.
4
Pair with sunnylink
Connect your device to sunnylink for remote management and access to additional settings.
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Pricing
Model: open-source

Sunnypilot software is free to install and use. Requires purchase of comma four device and compatible car harness from comma.ai. sunnylink remote features are premium but pricing is not specified.

Assessment
Strengths
  • Supports over 350 car makes and models including non-SCC variants.
  • Open source with regular updates synced to comma.ai master branch.
  • Includes camera-based Driver Monitoring to alert distracted or asleep drivers.
  • Provides remote management capabilities via sunnylink dashboard.
  • Comprehensive documentation with guides and tutorials.
Limitations
  • Requires specific comma hardware like comma four and compatible car harness; not standalone.
  • Open GitHub issues include bugs such as Mapbox URL inaccessibility and missing features like EBSM support.
  • Depends on upstream comma.ai for core syncing; forks like Sunnypilot address some gaps.