The car constantly over-corrects when it tries to keep me centered in a lane on the highway. It always over-corrects to the left shoving me to the left into the adjoining lane, and potentially side swiping vehicles in the adjoining lane. It never over-corrects to the right. I reported this to the dealer and I was told that this is normal.
2021 Subaru Ascent driver assistance complaints
Page 2 of 2: complaints 11 to 18 of 18, newest first, as owners wrote them.
The lane keeping assist pull abruptly into the other traffic lane when traveling on the highway for example when on a 4 lane road with two lane in the same direcstion and passing a semi truck the steering assist abruptly pulls the car into the truck's lane and requires immediate hard handed reaction to keep the car from hitting the truck. The lane assist on this subaru vehicle is more dangerous than it is helpful. Subaru is terribly un response to request for help although the car is less than 1-year old and has a mult-year extended warranty---subaru's customer service is the worst we've experienced. BTW my son's Honda Acura's lane assist is excellent!
On several occasions while using the lane centering feature, vehicle has taken a sudden violent move to the left into the on coming lane. No warning lights illuminated. Problem hasn’t been replicated by dealer.
Lane assist with cruise control over corrects. On multiple occasions while on the freeway using cruise control the lane assist pulled me into the other lane into other vehicles. I have almost hit other vehicles. The pull is too strong and crosses lanes. If not fixed by subaru, accidents will occur.
Lane assist with cruise control over corrects. On multiple occasions while on the freeway using cruise control the lane assist pulled me into the other lane into other vehicles. I have almost hit two other vehicles. The pull is too strong and crosses lanes. I have to keep it off. Forward collision does not engage.
The 2021 ascent has lane centering assist with very strict margins. It is a constant tug of war with the vehicle when lane centering is active. When you let the car take over, it violently jerks you into the next lane. This problem has been cross checked with other users on a subaru forum and all have the same issue. The car overcorrects and is prone to cause an accident at some point. I am lucky no one was in the lane next to me when the car swerved me into the next lane. My 2021 is a replacement of a 2020 model because the 2020 was deemed a lemon. The 2020 model did not have lane centering but lane keep assist instead. The 2020 did not violently jerk into the next lane. This issue has been reported to leslie karpiak at soa who helped me through my lemon issue on the 2020 model. I requested a full buy back and she suggested I have my car inspected at a dealership, but that is a lengthy process and I have already spend 3 months in and out of dealerships with my 2020 model. This appears to be a common issue on all 2021 models and should be investigated fully. I am holding subaru 100% liable when an accident occurs because of this lane centering issue. This issue happens on a continuous driving basis. Your help and assistance is greatly appreciated for the sake of saving lives.
The lane assist feature (only an option when using adaptive cruise control; not the same as lane centering when not using the adaptive cruise control [the basics lane centering works just fine]) seems overly aggressive. Each time I have used lane assist with cruise control, it jerks the car very abruptly at times, almost to the extent of sending it into another lane if I do not intervene. I no longer feel safe using lane assist, so I turn it off when using cruise control. I am very concerned it's going to cause and accident. This has happened at least 5 times now while driving on the freeway (every time I have attempted to use lane assist).
Vehicle wanders on the highway. When passing a vehicle on the road the lane centering assist tries to hug the centerline and the driver must keep pulling he vehicle back to the center of the passing lane. A short lapse of steering could pull the vehicle into the side of the vehicle being passed. Full time job to keep the vehicle from wandering when very liitle wind and almost impossible to keep it from wandering when the wind is blowing 15-20 MPH. Not a pleasant relaxing drive.
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