2022 TOYOTA HIGHLANDER Electrical System Problems

Throttle plate iced up in cold weather, causing computer to put the car in limp mode, creating a dangerous situation. Toyota had a TSB solution for this in 2023, but did not make the software update available until my vehicle failed.

The entire head unit in the center of the front console went crazy and started going blank, glitching out, and basically made it impossible to use any of the features associated with that screen unit. The 2022 Toyota Highlander's head unit controls infotainment (radio, streaming, navigation, phone) and integrates with vehicle settings for climate (auto AC, seat heaters/ventilators), lighting, door locks, and driver-assist features like Road Sign Assist and Parking Support Brake, with over-the-air updates available for connected models. It manages multimedia, Bluetooth, Apple CarPlay, Android Auto, Wi-Fi, and vehicle alerts, offering deep customization for audio, display, and connectivity. We promptly took the car into the Toyota Dealer and they determined it was a bad head unit and I had to pick up the car and they made us drive the car for about 1 1/2 weeks broken, while the part was in transit. After the part arrived, we scheduled...

Vehicle Issue Description (Rear Liftgate): The rear power liftgate intermittently fails to operate and presents a safety concern. The liftgate often will not open at all. At other times, it opens only partially (approximately one-quarter of the way) and then stops. When this occurs, the liftgate frequently will not close properly and sometimes fails to latch securely. This issue has been ongoing for approximately two years and has progressively worsened. It has now reached the point where the rear liftgate is no longer usable. If the liftgate does not open in an emergency, occupants may be unable to exit the vehicle through the rear, which could be dangerous in the event of an accident. Additionally, when the liftgate fails to latch securely, there is a risk it could open while driving, potentially causing cargo loss, reduced visibility, or allowing exhaust fumes to enter the cabin. Numerous Toyota Highlander owners report...

When turning on the heated steering wheel and about 5-10 minutes, it seems there is smoke coming from the steering wheel leather and it’s very hot that almost burnt my hand and forced me to take my left hand off. I immediately turned the heated steering wheel and stopped. There is a burning spot left on the steering wheel also. The heating option still can be enabled and the same situation repeats (like no fuse was broken)

The screen is going out. The back tailgate hangs up and doesn’t go down.

While driving my 2022 Toyota Highlander (VIN: [XXX] , 29,427 miles), I have experienced multiple recurring safety defects that Toyota has been unable or unwilling to repair under warranty. •Front collision sensors frequently trigger without any object present, creating a risk of unexpected emergency braking at freeway speeds. •Transmission hesitates and surges unpredictably, sometimes propelling the vehicle into traffic. •In heavy rain, my windshield wipers activated on their own and multiple system failure warnings appeared (including ABS failure), nearly causing a crash. •Persistent startability issue when fuel is below half a tank. •Seatbelt malfunction caused a passenger to strike their head. •Seat heater failure, seat separation, persistent coolant odor, and nonfunctional factory wireless charger since purchase. These defects are intermittent but recurring, and their unpredictability increases the danger. Toyota and the dealer have failed to duplicate the issues during short test drives, but they continue to occur during normal operation....

Car fire (total loss of vehicle) after hybrid malfunction. My family and I were traveling west bound on [XXX] near Crawfordsville Indiana on [XXX]. Trooper Chelsey Smith from the Indiana State Police (CAD # [XXX] ) came to the scene. Our car was traveling westbound at about 70 mph when I got a notification of "a malfunction in the electronic control of the engine, throttle, or automatic transmission has been detected. Contact your Toyota dealer to have your vehicle inspected" - I acknowledged the alert and kept driving, then it showed again 30 seconds later and acknowledged again. About 30 seconds later I received a "Hybrid System Alert" stating "A malfunction in the Hybrid System has been detected. Stop in a save location and contact your Toyota dealer to have your vehicle inspected". The vehicle then notified me that it was reducing power output and we went from 70 to...

The contact owns a 2022 Toyota Highlander. The contact stated that while driving 70 MPH in the fast lane, the steering wheel failed to respond as needed while attempting to turn to the left or the right. Additionally, the brakes became inoperable and the vehicle decelerated. The contact stated that several unknown warning lights were illuminated. The contact was able to veer to the shoulder, and the vehicle shut off. The contact called Roadside Assistance and was informed that the battery needed to be replaced. The vehicle was taken to an independent mechanic, who informed the contact that the failure was due to the engine. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 17,781.

The breaking system doesn’t take effect in speed and turn and when you leave the acceleration and the speed increase and loose control . Also the electrical system is damage not with seven month of brand new highlander hybrid . The rear cross traffic control and blind spot warning are coming . These is a serious electrical problem under 11,000 miles brand new vechile

While driving on the highway the entire dashboard warning system came on all the ADAS and messages saying braking failure to loss of control. This vehicle is not even three months old and is a platinum AWD vehicle fully loaded version. Toyota Dealership never mentions or stated this vehicle had any issues, even today they seem not to know what caused the vehicle to underperform. This is dangerous and this vehicle going at 65 MPH and unable to stop is a real danger to the occupants and others. They say its safe to drive, I disagree for the safety of all indivduals on the roadways.

While having the eco system on, with the active system present by firmly pressing the brake hard at a stoplight, the light turned green. while taking my foot off the brake and the engine turning back on, attempting to accelerate the transmission would not allow me to get through the intersection turning left. I pulled to the far left/slow lane to stay out of other traffic. The vehicle would not allow me to go past 40mph, and the rpm’s would rev between 2000-3000 at low speeds between 10-25 mph. I had my 1 1/2 year old with me in his car seat, and it would have been tragic should this happen on the freeway and this kind of situation happened. Attempting to take it to the dealership, the truck even had trouble going over some railroad tracks with a small mound present. The dealership checked out the vehicle and called...

The contact owns a 2022 Toyota Highlander. The contact stated while driving 35-40 MPH and attempting to accelerate to enter the highway, the accelerator pedal was depressed; however, the vehicle responded sluggishly. The vehicle emitted abnormal sounds as though the transmission was in neutral. The contact depressed the accelerator pedal all the way to the floorboard and the vehicle responded as intended. There were no warning lights illuminated. The contact was able to continue driving. Additionally, the contact stated that while driving 40 MPH, the brake pedal was depressed but hesitated to respond, causing 20 feet stopping distance delay. The contact stated that the failure mainly occurred in wet conditions, snowy conditions while driving approximately 60 MPH. The vehicle was taken to the dealer and test driven. The dealer informed the contact that though the vehicle was sluggish, it was not concerning. However, the failure reoccurred increasingly. The vehicle was...