2019 Toyota Highlander UNKNOWN OR OTHER

After 3 weeks of inconsistent shifting with the automatic transmission and whining and clunking, the car failed to go into gear at all yesterday 1/5/26 while driving near Dulles airport. I had it towed, was told the transmission failed and then I found that this is a systemic design issue with the 2017-2022 cohort of gas V6, 8 speed, AWD Highlanders. Repair will be between $5K and $10K.

My vehicle has noise in the transmission when accelerating. They should give a voletin. thanks

I called Toyota as I was concerned it was sluggish and was having trouble excelerating the appointment was given to me 2 weeks out but was told if anything happens to just bring her in. I had to bring her in the week of the appointment on a tow truck as she was not moving. I was told it’s a faulty transmission I asked if it’s covered by my extended warranty and because it’s over by 4 miles it’s not.

Loud ear-piercing noise when vehicle is started. Noise lasts about five seconds.

Transmission failure; See attached Customer Support Program Bulletin No. POL19-04 [XXX] (for 2018 Highlanders). My vehicle is a 2019, same body style, same transmission type, etc. Toyota dealership diagnosed my vehicle today and confirmed that the issue is the same as listed in the bulletin. I filed a case with Toyota (corporate). I have located thousands of other customers online reporting the same issue as described in this bulletin. I'm requesting that Toyota modify the bulletin or create a specific one for 2019. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The AC stopped working on our 2019 Highlander. The vehicle has very little corrosion underneath or in the engine bay, yet the rear AC lines have corroded at a location where two different types of metal contact each other. This has been happening with many highlanders after 5 years, and the cost to replace is expensive.

My car only has just over 70,000 miles and my transmission failed. I get regular maintenance services when needed and never had any prior issues with transmission. I was driving when the transmission failed on me leaving me stuck on the road. I took the car to Toyota service center and was told it needs to be replaced and no further details.

While driving my Hybrid System Malfunction, check AWD, check engine, and Pre-Collision System Malfunction all came on simultaneously, it also said to put in P. It wouldn’t accelerate so I had to have it towed to the dealer since it had only been 3 days since I bought it. It was sent to a Toyota service center where it took 3 weeks for them to diagnose and replace the high pressure fuel pump. I got the vehicle back, it drove fine for a week until the same thing happened again. It stopped accelerating, said to shift into P-only the Hybrid System Malfunction, check engine, and Pre-Collision System Malfunction came up this time. I had it towed back to the Toyota service center since the problem clearly wasn’t solved and am awaiting a new diagnosis.

The SOS speaker squeals very loudly when starting the vehicle about 7 out of 10 times and is available for inspection. Problem is known by Toyota. [XXX] No. No warning indication or messages. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

There is a very loud feedback noise through speakers intermittently when start and the red and green lights at the SOS button flash multiple times. The noise is loud enough to damage hearing of an adult or child.

When I start my car it makes an ear piercing screeching noise. It doesn’t happen everytime but I never know when it is going to happen. I took it to a dealer and 5 guys said they never heard of it. If you look online numerous people have this complaint with out any recalls. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I purchased a 2019 Highlander Platinum Limited a few weeks ago and it started making an incredibly loud feedback sound from the speakers every 10-15 times I start the vehicle. I do not have a subscription but I currently have a free trial thru sirusXM radio (not sure if this has anything to do with it or not). The loud beeping noise at startup is EXTREMELY loud causing my right ear to ring. Luckily I do not have small children in the car to experience this.

While driving the car on the highway with no other cars in the immediate area it sounded like there was an explosion on the roof. The glass sun roof spontaneously exploded. Small pieces of glass were everywhere. I was able to pull over to a parking lot. There could have been a serious accident or injury as this event caused me to swerve.

Occasionally upon starting the vehicle an EXTREMELY high pitched screech is emitted - probably through the speakers for a few seconds. The sound is ear splitting. This occurs ~5 of the times when starting.

There is a painful ear screech sound from speakers when starting car. Sometimes it happens multiple times a day and sometimes I can go a few days without it happening when I start my car.

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.

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:

When I start the Highlander, there is a loud (hurts your ears) feedback noise through the speakers, and the red and green lights near the SOS button flash multiple times. This happens intermittently, and when it doesn't happen, the SOS button only flashes red/green once.

When I start the highlander, there is a loud (hurts your ears) feedback noise through the speakers, and the red and green lights near the SOS button flash multiple times. This happens intermittently, and when it doesn't happen the SOS button only flashes red/green once.

While driving on the freeway less than 10 miles from my home, my sunroof exploded and broke into pieces. I was driving on a section of freeway where there was nothing above me and there were no other cars near me. There was a loud noise and then the air was rushing into my car.

Sunroof glass. Driving down the highway, the sunroof glass exploded and shattered. A very loud explosion noise. Vehicle is currently at the dealer for repair. Broken glass falling on driver and passenger. Further inspection shows glass protruding upward as if it was broken from the inside. Online research has shown many other Highlanders with the same problem. Dealer blamed on a rock, so why is the glass protruding outward instead of inward. No warning lights.