There are 2 owner-reported driver assist & adas complaints for the 2023 Subaru Solterrain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Started the car, dash had multiple warning lights for "drive start control system", "ev system malfunction" and "systems not available" (all safety systems were off). Took car to dealer, they said the car stored no codes, reset the car, took it home. Two days later- same thing happened but also this time the car had NO HEAT. Luckily the heated seats worked but it was 20 degrees F and I had to drive my mother and sister home (which was 90 minutes- a VERY long time to be without heat). Thankfully it did not snow which would have made the car undriveable due to the inability to defrost the windshield. Car went back to dealer (ziegler subaru of Kenosha WI), they have stated (thus far) two valves are bad and need replacing. i am in several online forums with other Solterra drivers, some of which are experiencing the same issues and being told the cause is the same valves, or the compressor. Lead times to acquire these parts are 2+ months. I have had my car since April 2023 and it has 9000 miles and to have it fail, with no heat or safety systems, is a danger to myself and others on the road.
Under certain circumstances when using adaptive cruise control the car can accelerate towards a stationary vehicle. The last time that it occurred I was using the adaptative control at 35 mph and was approaching a stop light with the car correctly detecting a car in front which my car had detected and was slowing to allow adapt to the speed of the car that was ahead. The car entered a turn lane on the left and there was another car directly in from of mine and it was stopped at the light. My car began to accelerate to the speed which is was set at and didn't detect the car in front which was stopped at a traffic light. I had to quickly apply my brakes to avoid a collision. My car had recently been updated with an update to it's software. An update had been applied to the front camera's software.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026