If you’ve been following the progress of Openpilot support on Rivian vehicles, you know how quickly things have evolved. In our latest video, we dive deep into where things stand now—with a focus on Lukas Loetkolben’s Longitudinal Upgrade Kit, the latest Sunnypilot fork, and how the Comma 3X performs on Gen 1 R1T and R1S
If you’re running a Comma 3X in your Rivian R1T or R1S (Gen 1), there’s a new upgrade worth checking out. Developer Lukas Loetkolben, known for his work in the Comma community, has released a Longitudinal Upgrade Kit that unlocks full speed control and blind spot monitoring through Openpilot. It’s now available on his website:
Whether you’re currently running Openpilot with a Comma 3X in your Rivian R1T or R1S—or thinking about it—you already know the system can handle curves and highways with impressive precision. But there’s one often-overlooked upgrade that can significantly boost performance: your tires. Tire construction directly affects Openpilot’s ability to steer confidently. The system calculates how
If you’re a Rivian R1T or R1S owner thinking about installing a Comma 3X to unlock Openpilot’s advanced driver-assist features, you’re not alone—and you’re in the right place. Before diving into harnesses, mounts, or model settings, there’s one resource you need to check out: the Rivian Comma 3X Tips & Tricks document. Created by Discord