There are 3 owner-reported driver assist & adas complaints for the 2020 Subaru Ascentin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Since the day I bought this car anything that blows across the road causes the brakes to slam on....even at speed on the highway This is dangerous as hell. Additionally the eye sight disconnects intermittently for on reason or because of rain or a small bump in the road. You must stop and turn the car off and on to get a reset. I have had the vehicle inspected at 3 different Subaru dealerships and they all say nothing is wrong with either system. Now I have tried for 2 weeks to get a response from Subaru Customer Advocate with negative results.
The contact owns a 2020 Subaru Ascent. The contact stated that while driving at an undisclosed speed with the cruise control activated, the vehicle experienced phantom braking. The vehicle was taken to the dealer where it was diagnosed that the vehicle performed as designed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 10,000.
Right front camera is blocked by plastic since manufacture. The adaptive cruise control and forward emergency braking do not work reliably unless the object is the left visual field. My car will accelerate into a car in front with no emergency braking. No accident. so far, because I have been able to avoid accidents by braking myself. The problem was diagnosed by Diablo Subaru of Walnut Creek. The vehicle was inspected and diagnosed by a Subaru dealership. The car tells me it cannot see the car in front. It also says it cannot see anything on haphazard basis. But it will also accelerate toward cars in front of it at close range because it cannot see.
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