NHTSA Complaint #11435958 — 2005 SUBARU OUTBACK

Parasitic Battery Drain: When the vehicle is in use, the CAN system in the car relies on an electrical current to be operated as intended. When the vehicle is not being driven, the CAN system should enter a sleep mode in which it stops drawing significant electrical current. However, vehicle does not enter sleep mode when the car turns off, resulting in a "parasitic battery drain." Local Subaru dealer maintenance department has not been able to determine any way to fix. Battery drains completely after approx 1 week of nonoperation (and sometimes sooner) leaving me (owner) stranded and unable to start vehicle without obtaining a jump start. Has also required recurring battery replacement at a cumulative significant cost. Not sure what to do and do not want to sell to another person that would inherit this ongoing issue.