2024 Toyota Grand Highlander vehicle speed control problems

What owners report

• “If my car has been sitting for a while, especially in the heat, and occasionally at random times, when you get in the car and press the gas, the car will not move. This happened twice where I was almost put in a very bad accident. There is a very hard intersection near my son’s school. I have to take a left hand turn- and you have to be quick because there is no light. I turned left and my car would not go- I was stuck in oncoming traffic and the car would not move whatsoever. It was very danger…”

  NHTSA complaint · filed 09/04/2026

• “Sometimes, when trying to accelerate in certain situations, the vehicle accelerator pedal will not respond or the engine stutters and won't immediately respond to input and the vehicle seems to stall. This has been scary several times in traffic. The vehicle originally would throw an engine code on the dash about system failure and was taken into the dealer after several of these incidents and a software updates was performed, but it still happens randomly although now with no code.”

  NHTSA complaint · filed 08/25/2026

• “The contact owns a 2024 Toyota Grand Highlander. The contact stated that while making a right turn from a complete stop to merge into traffic, the vehicle hesitated and failed to exceed 7–10 MPH. The contact released and then depressed the accelerator pedal again, and the vehicle responded as intended. No warning light was illuminated. The vehicle was taken to the dealer, where software updates were performed on several occasions; however, the failures persisted. The vehicle was not repaired. Th…”

  NHTSA complaint · filed 08/24/2026

• “The contact owns a 2024 Toyota Grand Highlander. The contact stated that while at a stoplight and attempting to drive forward, while making a left turn, the vehicle experienced a momentary unintended acceleration and lurched forward. The contact immediately depressed the brake pedal to stop the vehicle. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure. The failure mileage was 40,544.”

  NHTSA complaint · filed 07/30/2026

• “The contact owns a 2024 Toyota Grand Highlander. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate immediately while the accelerator pedal was depressed. The vehicle then accelerated and lurched forward while entering traffic. There was no warning light illuminated. The vehicle was taken to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 18,0…”

  NHTSA complaint · filed 07/23/2026

• “On a recent road trip I experience loss of acceleration twice. I was at a stop sign making a left hand turn. I step on the accelerator it start forward but then stop suddenly leaving me in the 1st lane of on coming traffic. I smashed on the accelerator several time before the vehicle finally responded. I took the vehicle to the dealer on 6/30 told the dealer what had happen along with my google findings acceleration hesitation and sudden lurching in the Toyota Grand Highlander Hybrid MAX Technic…”

  NHTSA complaint · filed 07/01/2026

• “The vehicle hesitates and does not accelerate immediately from a complete stop. This occurs more frequently when the car is on a slight incline. The delay in acceleration creates a safety concern, especially when attempting to merge into traffic or pull out onto a roadway. I have reported this issue to the dealership multiple times, but they have not taken action because they have been unable to reproduce the problem.”

  NHTSA complaint · filed 04/28/2026

• “I was driving toward the perimeter of my neighborhood, approaching an arterial cross street. When I braked the pedal went straight to the floor. The breaks didn’t work despite pumping them multiple times. I also heard the engine revving. To avoid the intersection and busy street I steered into a yard, hit a retaining wall and a tree, rolled and hit a metal city street sign. All airbags deployed. I was taken to the hospital by ambulance. The car was totaled and is on a temporary hold at a s…”

  NHTSA complaint · filed 03/25/2026 · crash

Unverified owner reports from NHTSA's public complaint database.

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