Efficiency in my R1S Shows 0.21 m/kwh: Is this a software bug?

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

Jan 17, 2025

Just noticed this yesterday, not sure if it's new or if it has been showing this for a while, but this seems about 10X lower than it should be. I've been driving my R1S for over 8 weeks now but have had 2 software updates in the last week. Has anyone else seen something like this?

Also just noticed that in the app, all home charging sessions show 0 miles of range added regardless of the kwh delivered to the vehicle. Seems weird to me I must say. Here's a photo of what was displayed.

Efficiency in my R1S Shows 0.21 m/kwh: Is this a software bug?

Rivian Blue

Member

Recent

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

2025 Rivian R1S/R1T Headlamp Recall – FMVSS 108 Noncompliance

Rivian Tales: Strange ICEd charger interaction last week.

What Could be this Creaking Noise from my R1S?: Happens when the car is waking up from sleep

R1S is Slipping on Ice While Parked: A Concerning Issue?

Rivian Door Window Calibration: An Easy Fix for Wind Noise Reduction

Gen 2 R1S Front Door Noise: A Minor Quirk or a Design Flaw?

Rivian R1S Pop-up Camper Roof: Exploring a Unique Conversion

Google Maps vs Rivian Navigation: A Route Planning Conundrum

Rivian's 2025.06 Update Fixes Gen 2 Key Fob Pairing

Rivian Motion cam video error: Could this be an issue with the 2025.06 update?

Update 2025.10 - Gen 1 upgrades and Gear Guard Enhancements

Similar threads