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My Model 3 seems to be re-calculating range after adding 20” wheels

Brettka7

Member
Jun 23, 2021
22
36
Huntington Beach, CA
From what I was able to find before adding wheels, the car will not calculate range any differently simply because wh/mi goes up when you add larger wheels and stickier tires.

However, I added 20” Überturbines 3 days ago and I’ve driven about 150 miles so far. My car was calculating 80% range at 210 miles for the past 4,000 miles of driving. Suddenly after changing the car avatar to 20” Überturbines in the MCU, it’s dropping every time I plug it back up to the charger. It’s at 205 miles today.

Tesla says “Displayed range is based on regulating agency certification (EPA) and is not adapted based on driving pattern.” I’ve attached some EPA certifications I can find below - I’m thinking maybe once you change the wheels on the car avatar, it recalculates to try to match the tested EPA range with that size wheels?

 

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TomT

Technical Maven
Mar 24, 2014
544
532
NE Georgia
However, I added 20” Überturbines 3 days ago and I’ve driven about 150 miles so far. My car was calculating 80% range at 210 miles for the past 4,000 miles of driving. Suddenly after changing the car avatar to 20” Überturbines in the MCU, it’s dropping every time I plug it back up to the charger. It’s at 205 miles today.
It uses a fixed formula.
 

al503

Member
Jan 11, 2019
190
90
Portland
Could be anything from actual range loss from the heavier wheels/tires, battery degradation, battery balancing/fluctuation, and (I know it stays very temperate in socal but) colder temps reduce range as well.
 

Gasaraki

Active Member
Oct 21, 2019
2,207
1,522
Syracuse, NY
From what I was able to find before adding wheels, the car will not calculate range any differently simply because wh/mi goes up when you add larger wheels and stickier tires.

However, I added 20” Überturbines 3 days ago and I’ve driven about 150 miles so far. My car was calculating 80% range at 210 miles for the past 4,000 miles of driving. Suddenly after changing the car avatar to 20” Überturbines in the MCU, it’s dropping every time I plug it back up to the charger. It’s at 205 miles today.

Tesla says “Displayed range is based on regulating agency certification (EPA) and is not adapted based on driving pattern.” I’ve attached some EPA certifications I can find below - I’m thinking maybe once you change the wheels on the car avatar, it recalculates to try to match the tested EPA range with that size wheels?

Yes, its obvious that changing the wheel size in the computer changes the calculation. The car has to reboot everytime you do the change, why would it need to reboot if it's just a graphical change?
 
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