Three problems related to blind spot detection have been reported for the 2020 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Toyota Highlander based on all problems reported for the 2020 Highlander.
There is an open recall which has not been addressed in a timely manner. The below has been open since oct 26, 2023. I have been advised that I would be notified when a remedy was available but it's been ten months with no solution. My front bumper detached while I was on the interstate causing damage to the front end of my vehicle. The subject vehicles are equipped with a resin front lower bumper cover assembly, connected with mounting tabs. If there is minor impact to the lower front bumper cover assembly that causes the mounting tabs to detach from the vehicle during normal operation, one or more parts of this assembly could detach, which could become a road hazard, increasing the risk of a crash or injury for other road users.
The contact owns a 2020 Toyota Highlander. The contact stated that upon depression of the brake pedal, the vehicle would intermittently surge forward without warning. The contact stated that he would shift the vehicle into neutral to stop the vehicle from surging. The contact also stated that the blind spot monitor unavailable warning message would intermittently appear on instrument panel. The contact had taken the vehicle to bayside Toyota and waldorf Toyota and each dealer was unable to duplicate or diagnose the cause of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 21,000.
Blind spot monitoring is not working. Took it to dealership thy said it needed re-calibration but it still doesn't see semi trucks. My wife accidentally ran another women off road because she trusted this Toyota system. System is currently still working intermittently.
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