2020 Toyota Highlander electrical problems

Filed Sep 17, 2026 · Electrical · 141,597 miles · VA

develop a high-pitched whine, shuddering, or harsh shifting between 25 and 45 mph, which can lead to premature wear or complete failure. Also, On/ Off from no where and stopped in the middle of the road

Filed Aug 10, 2026 · Brakes, Electrical · KY · crash · 1 injury

I was told by oxmoor dealership I had to talk to toyota corporate before I could get my car touched and that I did not need to talk to a lawyer. I called. Prior to the accident, the vehicle had been exhibiting multiple symptoms: an intermittent airbag warning light had illuminated briefly on the dashboard on a few occasions, and the vehicle had begun requiring noticeably longer physical distances to come to a complete stop at traffic signs and lights when not using cruise control. The vehicle was experiencing regular phantom seatbelt warnings—dinging as if a passenger was unbuckled when the seat was completely empty. The phantom seatbelt warnings i didnt think we're a big deal were occurring across multiple seating rows simultaneously in front and back. Directly preceding the crash, while making a turn, the vehicle swerved slightly. When I applied the physical brake pedal, the vehicle did not decelerate normally; instead, it experienced a sudden, abrupt forward acceleration surge into the building. I still haven't gotten my vehicle back or any information on what has been done or when I am getting my car back. I was also charged for an extra day for my rental when I was told to return it on the 16th. I haven't had a rental since then. I keep contacting oxmoor toyota and they said they were waiting on toyota corporate. I haven't had my car for a month. I tried to email. It was returned. My mailbox on my phone has been full of drs and other calls non stop. I texted online on the toyota page for the claim as well. Ive repeatedly asked the toyota dealership what is going on and I get we are waiting on corporate. I called toyota corporate again today and was told they would get back to me. I told the dealership. I am under medical care and in severe pain. Yes my safety was put at risk. Police and fire department were here the night it happened. They said they don't do a police report on private property. There is an insurance claim through state farm.

Filed Jul 16, 2026 · Brakes, Electrical · KY · crash · 1 injury

I pushed the brake and swerved and the car kept going and a greater speed and surged into a house.

Filed Jun 27, 2026 · Electrical · AL

While driving my navigation system/screen/radio screen goes completely black! Which is dangerous when I’m using gps on the interstate! It does not come back on until I restart the car.

Filed Dec 14, 2025 · Body, Electrical · TX

The rear hatch door will not close or open and just sit there.And dings, you have to manually close it and open it most times and it never fully sucks up and latches fully and it doesnt notify you on the hood display of the car , so when we were driving down the road, we heard loud hissing and road noise coming from the rear and come to find out the rear hatch had never fully closed or latched itself fully.And it hangs up constantly.

Filed Oct 11, 2025 · Electrical · IN

Door locks do not lock or unlock with the car fob, now only the driver's side door does not unlock with the fob, you have to unlock from the passenger side

Filed Jul 14, 2025 · Electrical, Locks · 11,000 miles · TN

The contact owns a 2020 Toyota Highlander. The contact stated that upon turning off the vehicle and locking the vehicle with the key fob, the doors were intermittently unlocked upon returning to the vehicle. The contact stated that over the years, the failure had become more frequent, but had become constant. The contact called two dealers and informed the dealers about the failure and was informed that a callback would be returned; however, the contact had yet to receive the callback. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the federal safety agency Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 11,000.

Filed Jun 6, 2025 · Electrical · NC

1- Most of the time my rear hatch will not close unless you use the inside button - cost 1,198.10 to repair. 2- my car started making a whining noise on acceleration. Took it Toyota and they said that I need to replace my transmission that it has an internal failure. Of course my warranty was of no use b/c it stopped at 100,000 miles. At the time of the inspection I was at 104,000. To get a new transmission it will be 7,425.60 (not including the labor). I really wish the dealership could have been honest about this year model transmissions failing. I would have passed on this car.

Filed Nov 22, 2024 · Electrical, Engine · OH

I was in a school line waiting for my children. I went to hit the gas to move and the car said “maintenance required” and then flashed other warning lights “low power steering fluid and engine light.” Then the car turned off and screens were flashing. I tried to restart the car but the steering column was locked and brake pedal was locked. I checked all fluids and they were full. I had someone jump the car and it turned back on. I figured maybe a bad battery. Had AAA come look at the car and all diagnostic testing was normal. Next day, car does it again in the middle of an intersection.

Filed May 16, 2024 · Electrical · FL

Loud screeching noise from stereo speakers. Very loud.