2019 Toyota Highlander

Issue 1: I reported transmission issued to the dealership/service center where I purchased the car. They assured me its just the electronic transmission trying to find the right gear while driving. Continued to complaint about the jerks and shifting. Dealer warranty expired, then they agreed that I needed a new transmission. Fortunately I had an outside extended warranty otherwise they'd probably would have waited until that ended too. Status post the transmission, tuning, sensor replacements, spark plug replacement, and TPMS replacements all in one service. Prior to my warranty expiring, AWD, engine light and hard transmission shifts began with the new transmission. Returned repeatedly from April to November with no resolution. However, they did have me pay to replace sensors I had replaced in April several times and obtain a new battery. Issue 2: After "new" batter the car's electrical issues worsened resulting in a power failure while driving at 75 miles an hour and losing complete control of the vehicle. The power failure shut down the electronic shifter, power steering, All Wheel Drive, Traction control in raining conditions and ultimately the power assisted brakes. returned the vehicle to the service department for additional "testing" after taking a video of the fault messages were the car electrical systems shut down to auto start stop function warning light. I'm a skill driver and was able to avoid crashing during the incidents. The photos are from the latest day I dropped the vehicle off for review I took a video of the vehicle powering down for their records. They are now stating since they can't figure it out maybe I should pay them to replace the electrical wiring harnesses throughout the vehicle; a cost which exceeds the vehicle's worth to me. I'm convinced now more than ever they knew there was an electrical issue with the vehicle but waited me out and if I would have crashed and died all the blame would have been on me.

This is the second time this year 2025 my Toyota Highlander 2019 stalled fist in the middle of of intersection and second on the drive thru in in&out. Suddenly my car died. Tried to turn on followed the on screen instructions but the car failed to turn on. The first time it happened in the middle of the intersection while waiting for the light to change, after the issue I when straight to a car shop and oreilly they have this machine to check any possible issues and he said nothing shows in his machine but he think it’s the battery but I told the guy my battery and on the car shop Midas same result no major issue found and one of the technicians says It could be the auto shot off features, that must be manually turn off since this will automatically turn on. The second incident in In&Out the car died suddenly, tried to turn the car but it was on Drive so change to stop then tried to turn on multiple times but faulted , the crews decided to help us push the car out of the drive thru since we are blocking all the customers car, the steering wheel so stiff could hardly turn. We can’t change gear from stop, I was told to push off and on manual break foot pedal and this this help able to change gear to neutral, so we can push the car out of the drive thru. No message or failure message in the screen. We just push the car in the parking lot. Tried to turn on but failed. One of in&out staff was so kind to help us, he has a portable jumpstart and the car able to start. Able to drive home safe. Now I’m afraid to turn on my car or drive far distance due to this issues.

Intermittent EXTREMELY LOUD ear-piercing high pitched noise coming from speakers upon starting the vehicle. The volume of the sounds is extremely high, the loudest noise I've ever heard. The sound lasts about 5 seconds. I am concerned for the safety of our hearing, for my family, including our children. It has not been reproduced at the service center because it is intermittent. I have read online where others with the similar year/make/model experienced it and have varying success by re-subscribing to Toyota SOS Safety connect ($80/year), or replacing the Data Communication Module (DCM). If not uner warranty, this costs thousands of dollars. I have tried re-subscribing to the Safety Connect but it does not work, and the dealer wants me to pay additionally for them to see why this safety feature is not working in my car. There is no warning before this loud sound presents.

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. My wife, the primary driver of the car, has slowly developed tinnitus and this is the only loud, ear piercing, noises she have been exposed to. This noise can also bring on extreme headaches. I can't imagine the damage it could do to a child. We have tried to get this fixed at the mechanic and Toyota says the part is backordered. When we go to Toyota they state they have not heard of the issue. When we search the internet it is easy to find threads of this same issue on the same model, Toyota seems to be hiding this is a known issue.

When starting the vehicle, and extremely loud feedback noise is emitted from the front right speaker. This happens intermittently. Sometimes it's every 5th time you start it, and sometimes every 29th start. This started happening after the dealer-provided SOS Safety subscription expired. The noise is extremely loud and very disturbing especially for individuals like our daughter who has special needs. I would not be surprised if it is damaging our hearing. It would likely be especially harmful to children! It has been confirmed by the dealer and is currently back at the shop whule they are further investigating the cause.

Complaint Regarding DCM Module Failure in 2019 Toyota Highlander Platinum Our 2019 Toyota Highlander Platinum is experiencing severe audio system malfunctions, beyond simple Bluetooth and connectivity failures. The vehicle sporadically emits an extremely loud screeching feedback sound upon startup and at unpredictable times while driving. This deafening noise is highly distracting to the driver, posing a significant safety risk. Toyota has been aware of this issue for years and documented it in Technical Service Bulletin T-SB-0112-20, which identifies the faulty vehicle assembly locations. However, despite widespread reports from owners and the high cost of repairs, Toyota has failed to issue a recall. Given the clear safety hazards associated with this defect, I firmly believe Toyota should recall affected Highlanders and provide immediate replacements for the defective DCM module. Owners should not be forced to cover costly repairs for a known issue that compromises driver safety.

Dear Staff, after SEVERAL payments made for DIAGNOSTICS i feel like I should commit suicide maybe because of this TOYOTA I can not afford to pay DIAGNOSTICS every single day to HEAR the SAME STORY over and over I understand there is a ENGINE CHECK LIGHT, I need it repaired PLEASE instead of having to pay DIAGNOSTIC FEES which ADVANCE AUTOPARTS doesnt even charge and TOYOTA takes $172 DIAGNOSTIC FEES when they can not even themselves RULE OUT the PROBLEM in their ENGINEERING or MANUFACTURING PLEASE look out for similar issues, ENGINE problems in 2GR-FKS engines as more people experiencing issues will CONFIRM its TOYOTA's fault They should either shut down their manufacturing in Japan or BRING BACK the STANDARDS of JAPANESE AUTOMOTIVES

When starting the 2019 Highlander, the car would intermittently emit a screeching noise. This noise is startling and can potentially cause a crash if it is emit while driving. This is a known issue since it made to the Toyota Forum: [XXX] However, when I brought the car to the dealership, they’re stating that they don’t know about the issue, and want to charge $300 just to diagnose the problem without guarantee the fix or acknowledge the known issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)