NHTSA Complaint #11431610 — 2019 SUBARU OUTBACK

The battery in my 2019 Subaru Outback died without warning, just under 13,000 miles, on Aug. 26, 2021. AAA replaced the battery, which had only 3.7 volts remaining, at a cost of $156 for a 6-year battery. Exactly one week later, on Sept. 2, 2021, my new battery died. Another call to AAA, whose technician said the new battery was completely drained. He jumped the battery for me and checked the starter and alternator, which were fine. I drove directly to the Subaru dealer yesterday afternoon and they still have my car. I don't know for certain what the problem is, but based on owner complaints (and a class-action suit) I found online it appears that the problem is in the CAN unit, which in 2015-2020 Outbacks (and other Subarus as well) fails to put the car's electrical system to sleep when the engine isn't running, thereby draining the battery. I am very afraid of being stranded without the ability to get help quickly.