2026 Subaru Solterra Problems

New vehicle, only 900 miles on it had to get it jumped twice so far. The 12v battery has parasitic draining.

Brand new Subaru Solterra died after only a month on the road Root cause is parasitic power drain from 12V battery which completely ran dry Car has been in shop for a week without any possible root cause and repair Problem is prevalent on this particular model as reported by owners of 2023 till 2026 and also from towing companies I'm afraid if not fixed at the root, car will die again after a short while Here are a few links related to the problem : [XXX] From Subaru itself : [XXX] They blame of 3rd party apps, but most users don't use them, me included This is certainly a lemon issue since car cannot be driven without a healthy 12V battery INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On June 23rd, 2026, while driving my 2026 Subaru Solterra at approximately 35 mph on a clear, sunny day with no road obstructions or vehicles ahead, the vehicle suddenly and severely applied the brakes on its own. This unprompted, autonomous braking event brought the vehicle to an abrupt, unsafe slowdown, creating an immediate risk of a rear-end collision. No dashboard warning lights or error codes appeared prior to or during the event. The vehicle had recently been brought in for a safety recall related to the vehicle electronics/ECU. The vehicle was driven to the dealership, where it is currently undergoing diagnostic evaluation for automated pre-collision braking and sensor malfunctions.

Malfunction of the lane keeping assistance - I have had two incidents, where the second has resulted in damage to the vehicle. First incident, lane assist (passive) system jerked me off of an exit lane into the rumble strips before I could correct. (no damage done) This was approx. Mid-late January, and unknown conditions. I didn't think to report it until I was prompted by the Subaru Maintenance facility after incident #2. Second incident - active lane keeping assist was on (with adaptive cruise control) for my own testing on this new car. I was at low speeds, at ~6 am. The vehicle suddenly jerked hard to the right and collided with/drove over a curb at speed. It quickly displayed a warning on the driver cluster and short audible warning beeps but I did not see what it was because it was so fast. The car immediately corrected back into the lane before I could even react to the collision. Important context: This was on a concrete material road that was newly repaved (summer 2025) with road lines that were painted at the same time. It was also under winter conditions, not actively snowing, but there was lingering salt residue/coloration on the road surface as well as large snow banks along the grass strips due to plowing. The snow bank in the area was approx. 3 ft high at the location the car collided with the curb. There was also lingering salt and dried snow-sludge on the car that could have had an impact on the sensors. I did not, however, have any sensor obstruction warning. The vehicle was taken to the Subaru dealer for service, was determined to be out of alignment and fixed as a warranty request. The vehicle is available for inspection, however this was clearly a software failure and not a component failure, and the damage has been repaired. To my knowledge, the dealer service center did not attempt to reproduce the issue.

There is a major design flaw with the car. The headlights are mounted on the bumper which is plastic. Because there is not enough rigidity in the plastic bumper and the sharp cutoff of the LEDs, the headlights appear to flicker and strobe when going over small bumps or imperfections in the roads. Drivers on the imposing lane will sometimes flash their high beams as they think I'm flashing them.

The low beams headlights, when you go over a bump they visibly shake, it is distracting. I checked forums and other owners are complaining of same problem with this model.

On June 23rd, 2026, while driving my 2026 Subaru Solterra at approximately 35 mph on a clear, sunny day with no road obstructions or vehicles ahead, the vehicle suddenly and severely applied the brakes on its own. This unprompted, autonomous braking event brought the vehicle to an abrupt, unsafe slowdown, creating an immediate risk of a rear-end collision. No dashboard warning lights or error codes appeared prior to or during the event. The vehicle had recently been brought in for a safety recall related to the vehicle electronics/ECU. The vehicle was driven to the dealership, where it is currently undergoing diagnostic evaluation for automated pre-collision braking and sensor malfunctions.

On XXX at approximately 1:20 PM, my 2026 Subaru Solterra (approx. 4,761 miles) experienced a sudden loss of motive power while I was driving on a 4 lane trunk highway at approximately 40mph. The vehicle's drive system shut down without warning and the instrument cluster displayed "EV system malfunction – Visit Your Dealer." The vehicle would not deliver any propulsion. I was able to coast to a safe location and park. After shutting the vehicle off and restarting it, it drove normally. The warning message remained on the dashboard and cleared on its own after 4–5 additional ignition cycles. No collision occurred, but the sudden power loss in traffic created a significant crash risk. After the incident, I read the diagnostic trouble codes with an OBD-II scanner. The vehicle had stored: U0111-87 (Lost Communication With Battery Energy Control Module "A"), P0A1F-94 (Battery Energy Control Module "A"), and two instances of U117B-87 (manufacturer defined). These codes indicate the battery ECU dropped off the vehicle's communication network at the time of the shutdown. This failure appears consistent with NHTSA Recall 26V393, which covers 2026 Toyota bZ, Lexus RZ, and Subaru Solterra vehicles for a battery ECU software fault that can shut down the electric drive system and cause loss of motive power while driving. I am reporting this as a real-world occurrence of the failure described in that recall. I have scheduled service with my Subaru dealer, White Bear Subaru ([XXX]), regarding the recall remedy. Photos of the dashboard warning and stored trouble codes are available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)