Electrical complaints by model year
Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
What owners report
Eye sight freezing when car purchased brand new. I was told that this was a known Issue. Radio freezing and then resuming at blaring volume, I was told that this was a known issue and Subaru was waiting for an update. Burning smell from car when purchased, notified dealer, smell did not go away. I was told that this was normal. Starling freezing and not working, this was a service that I paid for, I was told that this was a known issue and was waiting for an update. On 6/9/2024 I was driving, while entering a tunnel, and using the adaptive cruise, the car did not track the car in front of me. I braked, this did not stop the adaptive cruise (according to Subaru) and the car collided with the car in front of me after the emergency braking system failed to also stop the car in time. …
While driving, shortly after starting the trip (after traveling approximately a quarter mile), I felt what seemed like a bite or an electric shock on my left ankle, at floor level. I immediately pulled over and stopped the vehicle. My sock had a burn/hole in it, and I sustained three distinct marks on my ankle. There were no dashboard warning lights on before, during, or after the incident. This startled me while I was actively driving and could have caused a loss of vehicle control, particularly if it had occurred at higher speed or in traffic. The vehicle has since been inspected twice: once by the selling dealer's service department, and once by the manufacturer's own field specialists, including a full diagnostic scan, a road test, and a physical inspection of interior wiring, including the footwell area near where the incident occurred. …
The warning lights on the car flashed and the car shut down. I was on the highway. I called 911 and they told me to quickly and safely exit the car. Less than a minute later, the engine combusted and the car was engulfed in flames.
2023 Subaru Ascent, under manufacturer basic warranty. Factory OEM battery has repeatedly failed. Voltage drops below 11.5V in normal use. Three documented failures in six weeks. SAFETY INCIDENT: Vehicle died on a public street and became completely immobilized. Brake warning light activated. Vehicle would not move even after a jump start. Passengers had to exit in a live traffic lane. A second vehicle was used to transport a replacement battery. The original battery is in my possession and available for inspection. A subsequent failure occurred when the original battery was reinstalled for a manufacturer-required diagnostic. Vehicle again would not start. …
1. The electrical system/battery failed after only 392 miles. Car could not be jumped. When the cables were put on the battery, the tech said they got real hot (which leads us to believe it was shorting out.) Even though Subaru blamed the battery, the dashboard lights, the horn, and the headlights were all flickering and flashing like a Christmas tree. The car had also just been driven 45 minutes before. Subaru blamed driver error on not shutting the car off properly, but according to a class-action lawsuit, Subaru is aware of this happening with other Subaru vehicles. 2. The car would not start in an unsafe neighborhood after dark. We also experienced a burning smell in our garage for the past few months, which disappeared now that the Subaru has been at the garage for a week. 3. Not confirmed. The Subaru dealership blamed driver error and improper shut off of the ignition. 4. …
The contact owns a 2022 Subaru Ascent. The contact received notification of NHTSA Campaign Number: 22V907000 (Electrical System). The local dealer was contacted; however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
While driving my Subaru Ascent, a check engine warning light appeared on the dashboard. Shortly afterward, I noticed smoke coming from the engine compartment. I immediately pulled over and turned the vehicle off. Within moments, flames began coming from under the hood. The fire spread rapidly, and within 5-10 minutes the entire vehicle was fully engulfed in flames. The fire originated from the engine compartment. The vehicle was a total loss. Subaru of America was notified on 12/23/2025, but no follow-up or update on investigation has been responded. The vehicle was always serviced with Subaru. This sudden, traumatizing and catastrophic failure with no prior warning.
After my husband replaced the 12V battery in my 2021 Subaru Ascent Touring ($90,000, fully paid off), Apple CarPlay stopped connecting via USB entirely. Android Auto and Bluetooth continued working fine on the same phone, cable, and port, proving the defect was isolated to Subaru's CarPlay system, not my device. I spent significant time and money troubleshooting this myself: multiple cables (including two labeled "Apple certified"), a full infotainment factory reset, and a software update attempt, none of which fixed it. The issue only resolved after I purchased yet another cable at my own expense, with zero meaningful help from Subaru. …
Related recalls (1)
Electrical system › Wiring › Interior/under dash
Subaru of America, Inc. (Subaru) is recalling certain 2019-2022 Ascent vehicles. The ground bolt that secures the ground terminal of the Positive Temperature Coefficient (PTC) heater may have been improperly fastened, which could result in melting of the ground terminal and surrounding components.
Remedy: Owners are advised to park their vehicle away from structures and to avoid leaving the vehicle unattended while the engine is running.
Frequently asked questions
Which Subaru Ascent years have electrical problems?
By NHTSA complaints, the 2019 (160), 2020 (101) and 2021 (18) model years. Electrical complaints make up 36% of all complaints for the 2019.
Is there a recall for Subaru Ascent electrical problems?
Yes — 1 recall, including 22V-907 (interior/under dash, Dec 8, 2022). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Subaru Ascent electrical problems start?
Across all years, half of the complaints with a recorded mileage happened before about 9,000 miles; 99% happened before 50,000 miles.
What part fails most often?
Owners most often name the 12v/24v/48v battery (3 mentions).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.