Blind Spot Detection Problems of Subaru Ascent

Subaru Ascent owners have reported 3 problems related to blind spot detection (under the lane departure category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Subaru Ascent based on all problems reported for the Ascent.

1 Blind Spot Detection problem of the 2025 Subaru Ascent

Failure Date: 07/23/2025

Driver side mirror vibrates making the view in the mirror blurry. The distorted picture causes confusion and safety hazard as it's very difficult to see in day and almost impossible at night. Vibrations are noticeable in the driver's side b pillar. According to the dealership, this is related to the car's frame, no further details were provided so far. Car has been in the service for almost two weeks due to this issue.

2 Blind Spot Detection problem of the 2019 Subaru Ascent

Failure Date: 04/14/2024

Upon starting the vehicle, the driver side mirror started smoking. Secured the vehicle and disconnected the battery. Removed the mirror assembly and notice the electrical wires powering the blind spot indicator of the mirror assembly was burned and melted. Picture of the damage was taken prior to removing the mirror assembly from the vehicle.

See all problems of the 2019 Subaru Ascent 🔎.

3 Blind Spot Detection problem of the 2021 Subaru Ascent

Failure Date: 02/25/2022

My mirror on my car has started melting. They told me it was a outside force, from a lighter. I told them it was electrical or something wrong from the inside of the mirror. There are forums recently posted up regarding this and Subaru has ignored them all claiming it is reflective light from the sun. That they can’t do anything about it. Others have replaced their mirrors 3 times now. This is a potential fire hazard and could be unsafe. They are not addressing this as it should be. . Read more...

See all problems of the 2021 Subaru Ascent 🔎.


Other Common Lane Departure related problems of Subaru Ascent

Problem Category Number of Problems
Assist problems
13
Warning problems
7
Blind Spot Detection problems
3


Ascent Service Bulletins