NHTSA Complaint #11316609 — 2014 TESLA MODEL S

ELECTRICAL SYSTEM issue reported to NHTSA

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Complaint Details

ODI Number	11316609
Vehicle	2014 TESLA MODEL S
Component	ELECTRICAL SYSTEM
Date of Incident	May 16, 2019
Date Filed	March 6, 2020
Mileage	50,000 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	IL

Consumer Description

RE: NHTSA ACTION NUMBER: DP19005 - INVESTIGATION SUBJECT : BATTERY MANAGEMENT SOFTWARE UPDATES - VEHICLE HAD SUDDEN LOSS OF BATTERY CAPACITY AND CHARGING VELOCITY AFTER SOFTWARE UPDATE IN MAY 2019. THIS HAS CONTINUED WITH A ROUGHLY 15% REDUCTION IN THE KWH RATING OF THE BATTERY (PUBLISHED RATING 85.0, ACTUAL 71.65). I AM DISAPPOINTED WITH THE REDUCTION IN THE PERFORMANCE AND USABILITY OF THE CAR, BUT MORE CONCERNED WITH THE POTENTIAL OF AN UNDISCLOSED DEFECT OR RISK THAT I AM AM NOT AWARE OF.

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