9 complaints reported

2020 Subaru Legacy Electrical System

Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.

Reports
9
Crashes
0
Fires
0
Injuries
0

Complaint Timeline

Chronological view of owner reports

Feb 2025

in inclement weather the windows will not roll up, especially heavy rain events. The window will attempt to go up and then go into the fully open position. You have to wait a minute before the window will allow you to attempt again of reset the windows. This happen to me on the highway in a heavy rain. It has happened several times. Subaru knows of this problem and has a technical bulletin about it to change the motor and window tracks. They all should be changed before a fatality occurs

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Jan 2025
Nov 2023

The front door window regulator of our 2020 Subaru Legacy is not working properly. It fails to raise and lower correctly and reliably which can be a safety issue especially in an emergency. The problem occurred without any prior warnings or messages. I am told by the dealership (Bob Moore Subaru of Oklahoma City) that it is part #61041AN00A that requires replacement.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: May 2023
Nov 2023

Thermo Control Valve failed. Caused a short which affected all electrical components on its circuit. The car became inoperable in traffic.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Jul 2023
Nov 2022

At a stop, the vehicle shut off, which required a jump start. The vehicle is fairly new, so a discharged battery shouldnt have been an issue.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Sep 2022
Apr 2022

The battery discharged to the point where I was unable to start the car. I had been driving all day and was waiting for my wife for half an hour with the radio on. This left us stranded about 15 miles from home. I had to call to have someone take my wife home while I waited for a tow truck. My battery also discharged to the point where I couldn't start my car after the car sat overnight. I needed to take my son to a doctor's appointment, and I had to cancel the appointment. And no, I didn't leave the lights on or a door open.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Apr 2022
Jan 2022

In a class action lawsuit filed against Subaru of America, it is alleged that several models have defective Controller Area Network (CAN) modules that cause premature battery drainage. New Jersey Judge [XXX] arbitrarily dismissed two models, Forester and Legacy, from the lawsuit even though they have the same problem because none of the plaintiffs owned either of those model vehicles. I own a 2020 Legacy that has stranded me and my wife on two separate occasions due to a low battery. Once the car died in the middle of a major intersection when I stopped to allow oncoming traffic to pass and the auto start/stop turned the car off. When I attempted to restart the car the battery was dead. This left me in a very unsafe condition. I had to exit my car, dodge traffic and physically move my car from the middle of the intersection. I have had my car inspected by a Subaru Service Dept. and told nothing is wrong. I want Subaru to fix their mistake. What is my recourse? Sincerely, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Dec 2021
Oct 2021

BATTERY ISSUES. maybe stemming from internal components (unsure, but likely). car completely died, when lights and all settings were turned off. bought a jump starter thinking maybe i just left something on, drove around for like an hour to juice it up and power the battery. went to car today and dead again. cannot access trunk (where i put my emergency stuff) because it's completely dead. called and had to wait 3 hours for a jumpstart after subaru automated roadside assistance hung up 4 times before i even got to speak to a representative. scheduled an appt for new car battery. so no invoice or anything yet, but i spent $150 to be able to drive it (thinking it could have potentially my fault), for it to be confirmed that it was infact subarus fault.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Oct 2021
Sep 2021

The battery for the Subaru Legacy Limited will not keep a charge. As a result the battery dies and the car will not start. On four occasions the car had to be jump started. After each jump start the car was left running for up to an hour. The next day, the battery was completely discharged and starting the engine was not possible.

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Nov 2021
Jul 2021

BATTERY DRAIN

Type: Vehicle, Vehicle: 2020 SUBARU LEGACY, Manufacturer: Subaru of America, Inc.
Incident: Jun 2021

Trend Over Time

Complaints by year

Quick Summary

The 2020 Subaru Legacy has 9 Electrical System complaints on file. Review the timeline above for detailed owner experiences.