2023 TOYOTA HIGHLANDER Complaints

On hot days the evap system does not function properly. You can visibly see gas fumes spewing from the filler neck area. The smell of gas inside and outside of the vehicle is horrible. It has caused headaches, nausea and dizziness to the passengers inside of the vehicle. It is extremely unsafe and Toyota doesn't know how to fix it. They are aware of the problem but refuse to remedy it. I personally know of 3 other highlanders doing the same thing. Not only is it a personal safety concern, it's also an environmental issue. This problem is with 2023 and newer highlanders and grand highlanders.

Vehicle is sluggish and will not accelerate from a dead stop for several seconds. The gas pedal often has to be pushed much farther down than usual so then when the vehicle actually starts moving it lurches. It often seem like it can't find the proper gear so it will buck and stutter while driving. The shifting is not smooth at all and you never know how the vehicle will respond making for a very unpredictable driving experience. This all started shortly after reaching the 2000 mile mark. The cruise control has issues reaching and maintaining the speed that is set. I found the Toyota service bulletin, T-SB-0087-23 and have made an appointment with my local dealer to hopefully fix the issue.

The vehicle has erratic acceleration. It will either be extremely slow and jerky or it will jump forward with great speed and force. This is dangerous and may cause an accident. You have no control when it comes to acceleration whether you are leaving a stop light or trying to avoid an accident.

Toyota gave me one FOB Key when I purchased the vehicle. I should be receiving 2 FOB keys. The dealer told me TOYOTA will send me a letter when the second key will be available. I called the TOYOTA Hot Line last Feb. 2024. I was told it will be available June 2024. I called last June 2024. I was told it will be available July 202. I called last July 2024. I was told it will be available August 2024. On Sept 9, 2024, I ordered a FOB key from Burien, Washington Toyota dealer. I paid a total of $400.20. This expense would have been avoided if Toyota sent me the FOB key as promised.

While driving at 60 mph the lower front bumper assembly came off and detached from the vehicle and lodged under the car causing an emergency stop in the middle of the highway. When Lithia toyota was asked to repair the damage they have refused stating that it must go thru my insurance since it was an accident

the car surges forward when braking, as if the brakes are momentarily released. it almost caused be to hit the car in front of me. the brakes released in the middle of braking

The contact owns a 2023 Toyota Highlander Hybrid. The contact stated that while depressing the brake pedal, the vehicle surged forward and accelerated before coming to a stop. The failure occurred intermittently; however, the failure seemed most pronounced while decelerating from highway speeds. There were no warning lights illuminated. The dealer was informed of the failure; however, the vehicle was not taken to the dealer. The vehicle was not diagnosed. The vehicle had not been repaired. The manufacturer had not been made aware of the failure. The failure mileage was 20,000.

The contact owns a 2023 Toyota Highlander Hybrid. The contact stated that while depressing the brake pedal, there was a hesitation, and the vehicle surged forward before coming to a stop. There were no warning lights illuminated. The contact became aware of TSB 0059/23, NHTSA ID Number: 10244133 (Electrical System, Air Bags, Service Brakes) for the 2021 - 2022 Toyota Highlander. The vehicle was taken to the dealer where it was diagnosed with brake failure. The contact was informed that the brake actuator needed to be replaced; however, the dealer confirmed that the year, make, and model were not included in the TSB. The dealer attempted to update the brake actuator module according to the TSB; however, the update failed due to the year the vehicle was manufactured. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The approximate failure mileage was 6,000.

From a stop or slow roll (0-10 mph), significant hesitation is experienced after pushing the gas. The engine will not respond for a few moments and then all of a sudden it will take off in a jerking manner. Note that this is experienced when the engine auto start/stop is deactivated, so it is not from the delay of the engine starting when activated. This hesitation causes a near miss safety situation in many normal driving activities, but the highest risk is when turning left in front of oncoming traffic. I brought the vehicle to a Toyota dealership for the condition, noting Toyota's Service Bulletin T-SB-0087-23 for this exact issue, but after 3 days and 40 miles of the dealership driving it, they stated that they cannot reproduce the issue. There are no warning signs or lamps, and this issue has been occurring since the vehicle had about 1,000 miles, and the vehicle now has 20,000 miles on it.

The car absolutely reeks of gas after driving for a while on warm days. You can visibly see the fumes around the filler neck. It has been the the dealer multiple times and they say they can't find anything. It seeps into the car causing headaches and dizziness. I personally know of 2 2023 Highlanders and 1 2024 highlander that have this issue. I am extremely worried this will cause a fire and/or explosion at some point.