NHTSA Complaint #11427353 — 2019 SUBARU FORESTER

Repeated SUDDEN BATTERY DRAIN when car sits overnight, car is disabled. Note that Key FOB is kept away from the car when not in use, no accessories are left on (i.e. lights, door ajar, etc.) and car is only sitting for one night. There were no warning lights or messages or other symptoms prior. No indication as to cause each time after car battery is jumped by road service. Incidents began on March 11, 2019 (car was purchased Nov. 15, 2018); repeatedly occurs approx. every 4-6 weeks without any noticeable time elapse patterns. Began recording occurances regularly since August of 2020 (more incidents prior), total of 21 times to date; and 12 times in 2021 alone. Problem was reported frequently (and once towed) to Hodges Subaru (Ferndale, MI) dealer service dept. Battery & electrical systems were inspected by them several times since 2020. Dealer service claimed there were no problems with electrical system at each check, however Battery was replaced 2 times: 10/20/20 (as a "courtesy") and 5/24/21 (claimed defective battery). The same sudden battery drain continued to occur 9 times after it was first replaced; and an additional 4 times to date since the latest replacement on 5/24/21. Latest incident on Aug. 1, 2021.