Please Help, My R1S is Bleeding Kilowatts

[KenCar]

Looks like Rivian might have responded to my request and fixed this problem with 2026.07. Thank you!

• "Fixed a rare issue that caused the trip meter gauge to display a much higher energy consumption value than the actual.Gen 2 Only"

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[derekk4]

Rivian technicians say everything is okay, but my car is bleeding kilowatts! My Trip Meter shows 157kWh used to drive 142.6 miles. Does anyone else have this problem? At the advice of the local Service Station, I turned off MotionCam and LiveCam, and I turned off RoadCam, hotspot, and bluetooth.…to no avail.

My R1S’ efficiency while driving seems normal, but park the car and watch the “kilowatts used” keep going! The Trip Meter loses 4X the kilowatts shown in the Energy Monitoring screen. Stop for one hour and the Trip Meter logs 2 kilowatts in the “kilowatts used” line. Park overnight and 4 or 5kWh are added. At this rate, my R1S’ lifetime efficiency will under 2.0 by the summer. FYI: My R1S is a Dual Motor with 22” Aero wheels; garage-kept, no towing, no off-roading, no pet-mode.

There are two more odd things. First, the projected range is often unaffected. How can the car “use” 5kWh, but lose no range? Second, those “parked” kilowatts show an efficiency of 0.16 miles/kWh. Why is it not zero? My parked car has not moved an inch.

I had a loaner Rivian R1T for a few days. Its Trip Meter did not tack on a single kilowatt while parked. Any suggestions?

That trip meter calculation looks way off if your actual projected range isn't dropping. If you lose 5 kWh on screen but the battery percentage stays steady, it sounds like a tracking bug in the software rather than actual vampire drain. The trip meter might just be miscalculating background processes.

 

[Rivian Roamer]

That trip meter calculation looks way off if your actual projected range isn't dropping. If you lose 5 kWh on screen but the battery percentage stays steady, it sounds like a tracking bug in the software rather than actual vampire drain. The trip meter might just be miscalculating background processes.

This happens at the top end of Rivians. They do some funny business with the max range/%. My R1T stops increasing range at 96% but still charges. They do this (I suspect) to create a consistent range experience. Meaning, as your battery degrades you don't see that in the max range until that buffer is eaten up.

 

[KenCar]

You missed the scope of the error. The Trip Meter showed my car using 300kWh on a single charge. A single charge is only about 140kWh.

When I first noticed abysmal trip efficiency, I was baffled. The cause was clear when I ran the battery down from 100% to 10%.

I appreciate everyone's help resolving this issue, especially Jose at RivianTrackr who mentioned the problem to Wassym.

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