12V Access in Gen2 R1S for Light Bar Installation?

Rivian's Battery Estimation hasn't been the Most Accurate

Rivian Blue · 2025-04-01T08:59:34+00:00

Ever since I got my R1S, I've noticed that the battery range estimation hasn't been the best. Driving a Tesla for the last 3 years, it never had this kind of issue. During my last trip, the driver display shows 255mi remaining. My total trip (including 2 destinations) is 160mi so I believed I should be able to make it easily with a nice cushion. But the center display showed that I would arrive at first destination with 4mi remaining, and run out before the second destination! I knew this was false so I made the drive anyway, and arrived at second destination with 50mi remaining. If I understand correctly, the driver display range is simply the total rated range multiplied by SOC. That makes sense here, since my vehicle is rated for 370mi, 255mi is 68.9%. Coming from Tesla, I expect the number shown in the center display should account for factors like elevation, wind, traffic speed, etc. It's sad that my own mental estimation is better than Rivian's.

Rivian Blue

Member

Mar 4, 2025

I was planning to install a light bar on my roof rack with an spod mini6 controller in my Gen 2 R1S. I brought the car into the service center for unrelated trim issues, and was having a casual conversation with the tech about my overlanding plans and aftermarket upgrades. He mentioned that the 12V battery in the Gen 2 was no longer behind the frunk like in the Gen1, but that (as one would expect) he couldn't share any details about where I could tie into the 12V system on the Gen 2.

Has anyone successfully installed aftermarket lighting (or other accessories) that need 12V access on a Gen 2?

Any help is appreciated.

12V Access in Gen2 R1S for Light Bar Installation?

Rivian Blue

Member

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