Battery dies or the car will not start

What got replaced

Owners who name the part that was replaced mention the battery (205 reports), the starter (11 reports), the alternator (7 reports) and the module (6 reports).

Recalls and investigations

No recall on the electrical system covers the 2020 model year as of Sep 9, 2026.

When it happens

The middle half of failures fell between 3,600 and 10,663 miles, from the 110 reports that gave a mileage.

What owners wrote

“I have a 2020 Subaru outback that I purchased brand new one and a half years ago. It has 31,472 miles on it on December 28, 2021 and then again on January 31, 2021 my car would not start on the battery had to be replaced.”

Filed Jan 31, 2022 · 31,472 miles

“Battery inexplicably drains overnight. 1st occurrence was on 21 December 2021 and second occurrence on 25 December 2021. Car is stored in garage, located in Ponte Vedra, FL and is used daily. Mileage is 31,000 miles.”

Filed Dec 25, 2021 · 31,000 miles

“Parked car, engine fan stated (very fast) and did not stop running until battery died. Could not start the car. One other Outback 2020 owner told me she had the same problem. Jumped battery. Subraru could not find any reason for the fan to go on and drain the battery. Car had under 9,000 miles, under 15 months old.”

Filed Dec 9, 2021 · 9,000 miles

“This is a new car and recently seemed to be having some mid software issues. However, when I went to start it this morning, it is completely dead with no battery power. It has been driven less than 12k miles and should not encounter this issues. I am aware there is a class action lawsuit related to faulty electrical systems in a range of years of this Subaru and I want to note this issue”

Filed Oct 11, 2021 · 12,000 miles

Other problems on this car

• Windshield cracks or distorts 375 reports
• Infotainment, screen or backup camera fails 64 reports
• Engine stalls or loses power while driving 44 reports