2019 Toyota Highlander

A reoccurring noise comes from the passenger side of the vehicle every time I drive. It sounds like a short in a wire or maybe a loose wire. I can’t decide if it’s coming from the passenger door or the passenger seat. It is not affected by turning the radio volume up or down or even off. I do think though that I have noticed that the noise does NOT occur if a passenger is sitting in the passenger seat. I don’t have a passenger often enough for me to say the noise NEVER happens if a passenger is in the passenger seat. I have a video of the noise but this website doesn’t allow the video to upload.

The SOS system is malfunctioning and causing an earsplitting screech on the 2019 Toyota Highlander Platinum. This occurs around every third time when the car starts and is damaging my hearing and my kids' hearing. This is well documented on the Toyota Nation forum and Reddit. Toyotanation: [XXX] : [XXX] Here is a video of it occurring on someone else's vehicle: [XXX] "Toyota service technician at our local dealership heard the loud sound when servicing the vehicle. They talked to Toyota and they said: "TAS agent stated there has been multiple cases of the DCM causing this concern, and the repair is to replace the DCM or disable it." Toyota is charging consumers for this factory defect. Please make Toyota address this problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

We believe the problem is in the SOS system. This is an intermittent problem that occurs about every 5 to 15 starts. At start-up, an ear piercing scream/screech comes from somewhere in the front speakers and lasts about 2 to 5 seconds. At times the scream is so loud that it leaves a ringing in your ears. We are very concerned about our grandkids riding in this vehicle. This problem needs to be addressed, it’s not going away and it’s making it different to drive.

Noise complaint - High pitched feedback screech coming through speaker (potential for hearing damage) that occurs for approximately 5 seconds intermittently upon starting the vehicle. It can happen multiple times in one day or not until a week or two later. We have twice filed a case with Toyota Corporation. The dealer has heard the noise numerous times and upon performing diagnostics has indicated a malfunction with the SOS system- the trial subscription that came with the car expired in January 2023 and the issue began the following month. An on-line search indicates that other owners of the same vehicle are also experiencing this issue.

I was turning into Starbucks at a low speed when the next thing I knew the car jumped forward and hit the car in front of me not one time but three times. I was finally able to get the car stopped but had Damage to both cars. I believe the accelerator was stuck causing the accident. I want to know if there is a recall on the accelerator petal that it would have caused the highlander to do this because to me this was a frightening site to go through.

When starting my vehicle, I get a high pitch ear piercing noise. My ears will ring after it because it is so loud. This is extremely high for my passengers, grandchildren and my husband and I. I am not putting in ear plugs in me or passengers just to start up my car. I have reported this to Toyota Brand Engagement Center Case 230711000212. This component has NOT been inspected by anyone, as I am not paying over $300.00 just to have a technician look at it. There has not been any warning lamps, messages or other symptoms of the problem prior to the failure. This noise started around 3 weeks ago, Week of June 19, 2023.

I have a 2019 Toyota Highlander Hybrid, and about two years after driving the car, I get a loud, very high-pitched/high-frequency screeching sound when getting in the vehicle coming from the speakers. It lasts about 10 seconds. It's so loud it hurts our ears. Upon contacting Toyota, they declined to repair the issue, and I discovered several other users have the same issue. It's loud and excruciating and doesn't happen constantly, but it gets more frequent. complains from other owners: https://www.toyotanation.com/threads/2019-highlander-platinum-painful-ear-screech-sound-from-speakers-when-starting-car.1734165/page-3 This is the noise made:

Vehicle check engine turned on to check AWD system after about 2 days when filling with gas the engine wouldn't start and had Low brake power message on dashboard. Checked code and got P0171 and P0174 which mean engine's air/fuel mixture becomes too lean for the Engine Control Module (ECM) to correct within its normal operating range there are many posts and threads about same issue on highlanders as old as 2017 please look into this issue that could potentially cause a hazard. will take vehicle in for inspection 06/13/23 at Toyota of Naperville