NHTSA Complaint #11277660 — 2015 TESLA MODEL S

WHEN OUR BATTERY CHARGES TO 100% CAPACITY, IT SUDDENLY SHOWS ONLY 219 RANGE MILES, WHEN EARLIER IN OCTOBER, IT SHOWED 267 MILES AT 97% CHARGED CAPACITY. (OVER THE 1.8 YEARS OF OWNING THIS CAR, 267-270 WAS THE USUAL RANGE WHEN 100% CHARGED.) THIS SUDDEN DROP IN MAXIMUM RANGE FOR "FULL" CHARGE HAS BEEN NOTED BY OTHER DRIVERS DURING 2019, AND IT LED TO A LAWSUIT REPORTED HERE: HTTPS://WWW.REUTERS.COM/ARTICLE/US-TESLA-BATTERY/TESLA-OWNER-LAWSUIT-CLAIMS-SOFTWARE-UPDATE-FRAUDULENTLY-CUT-BATTERY-CAPACITY-IDUSKCN1UY2TW AND HERE: HTTPS://CHICAGO.SUNTIMES.COM/2019/10/18/20919396/TESLA-BATTERIES-SOFTWARE-UPDATE-ELECTRIC-CAR-FIRES-RANGE-LAWSUIT-CONSUMERS-GUILLERMO-PEREZ-CHICAGO THE LATTER ARTICLE ALSO REPORTS THAT, AS OF OCT 18, "NHTSA HAS RECEIVED AT LEAST 25 COMPLAINTS" OF THIS SORT. THIS HERE IS MY STEP TO ADD TO THIS NUMBER. I SUSPECT THAT, LIKE FOR OTHER USER, AN OVER-THE-AIR TESLA-IMPOSED SOFTWARE UPDATE DURING OCTOBER CAUSED THIS SUDDEN LIMIT OF MAXIMAL ABSOLUTE CHARGING LEVEL (EVEN THOUGH DISPLAYING THE 100%). FOR TESLA S MODELS, BATTERY DETERIORATION IS ESTIMATED AT 1-3 MILES RANGE/YEAR. I AM ATTACHING A FILE THAT SHOWS THE TRIP INFORMATION RECORDED BY A SMARTCHARGE DEVICE WE HAVE IN OUR CAR (HTTPS://SMARTCHARGERHODEISLAND.FLEETCARMA.COM). IT SHOWS THE BATTERY AS CHARGED TO 96% CAPACITY THIS MORNING (WE CHARGED AT OUR HOUSE OVER NIGHT). NORMALLY THIS WOULD CORRESPOND TO A DISPLAYED RANGE OF 260 MILES, BUT THE DISPLAYED RANGE WAS ONLY 218 MILES (WHEN STARTING A SHORT <1-MILE TRIP AT 10:08AM).