Tesla has lowered the range estimates across several Model Y, S, and X vehicles in the US, reducing the figure on certain trims by up to six percent. As reported by Electrek, Tesla’s online configurator now displays an estimated range of 285 miles for the Model Y’s Performance trim, down 18 miles from its previous 303-mile estimate. 

The Model Y Long Range is down to 310 miles from 330 while the Model X’s Plaid has dropped from 333 miles to 326. Estimates for the Model S Plaid have also been updated — more specifically, the configuration with 19-inch wheels which has fallen from 396 miles to 359. These changes have not been made to Tesla’s UK and EU listings, and ranges across other vehicles like the Cybertruck, Model 3, and the Model Y Rear-Wheel Drive remain unaffected.

Tesla has not offered an explanation for the lowered range estimations. Drive Tesla reports that the changes are related to two things after reviewing internal company documents. First, are “comfort and functionality improvements” made by Tesla that require more energy, and second is the implementation of revised EPA testing requirements that result in a “higher consumption and a slight decrease in overall range.”

Update January 5th, 8:18AM ET: Added report from Drive Tesla on reasons for the revised range estimates.