2019 Subaru Legacy electrical system problems

35 owner complaints filed with NHTSA name the electrical system on the 2019 Subaru Legacy — 28% of all complaints for this model year.

Electrical System complaints

28%

share of all complaints

—

median reported incident mileage

0 / 0

crash / fire reports

What owners report

“Due to a dead battery issue in 2025, I bought a new battery. A year later, the car wouldn't start & I finally got it jumped. Ran fine for 3 weeks, then wouldn't start again. I brought car back to the Interstate battery shop, who tested the alternator, which was fine, but he said the battery was…”
filed Mar 30, 2026
“Unintended acceleration, on 2 occasions. First occasion, car was in DRIVE waiting at a traffic stop and the engine radically increased it's RPM from idle to over 6000 RPM, remaining there. Braking control maintained the automobile's position. Shifting the car into neutral caused RPM to increase…”
filed Mar 13, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This bulletin announces a design change made to the CVT Control Valve Body which incorporates an enhanced valve sleeve to improve durability. (This is an revised version of the orignal bulletin.)
16-156-25R · Service Bulletin/Repair Instructions · issued Jun 2, 2026
This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM) for certain vehicles equipped with 3.6L engines.
02-195-26 · Service Bulletin/Repair Instructions · issued Jun 1, 2026