NHTSA Complaint #11473993 — 2021 SUBARU OUTBACK

Battery is draining for no apparent reason. As stated in several class action law suits, defects in these vehicles ( Subaru Outback 2015-2020) cause the batteries to drain, replacement batteries also drain. The Subaru Outback battery drains because of the Controller area network (CAN). When the vehicle is shut off, the CAN system should enter sleep mode so only a limited amount of electrical current is used. However, Subaru software errors prevent the CAN from entering sleep mode when vehicle is turned off. This software error will drain the original battery and every replacement battery installed in an Outback. Once the battery is drained, I am stranded. Reference law suits Daley v. Subaru and Tomasian v. Subaru. Subaru needs to fix all Subarus that are affected by this battery drainage issue. I have been experiencing this problem since we bought the car. First time, I thought I left something on, subsequent drainage issues I know that nothing has been left on. I now keep a trickle charge unit on the battery while in the garage at all times.