NHTSA Complaint #11718753 — 2022 TOYOTA HIGHLANDER

Component or system that malfunctioned: The braking system on my 2022 Toyota Highlander Hybrid, specifically the transition between regenerative braking and hydraulic friction braking, appears to malfunction intermittently. During braking, the vehicle sometimes lurches or surges forward instead of slowing smoothly, especially at low speeds or when braking downhill. The vehicle is available for inspection upon request. How safety was put at risk: The unexpected forward surge while braking increases stopping distance and creates uncertainty about braking performance, particularly in traffic or parking situations. This creates a risk of rear-end or low-speed collisions and reduces my confidence in the braking system. Problem reproduced or confirmed by dealer or service center: The vehicle was inspected by a Toyota dealership, and a Technical Service Bulletin (TSB) software update intended to address braking behavior was performed at approximately 50,000 miles. However, the braking problem continues unchanged after the repair. I had to pay the dealer to perform this TSB update. The dealer was initially reluctant to apply the TSB and did not associate my braking complaint with the known issue. I had to research the TSB myself and request that it be applied. The invoice notes that the dealer reproduced the issue. Vehicle or component inspected by manufacturer or others: The vehicle has been inspected by a Toyota dealership service department. It has not been inspected by police or insurance representatives, as no accident has occurred. Warning lamps or prior symptoms: No warning lights or messages appear when the problem occurs. The issue happens intermittently without warning and has occurred since the vehicle was new. The condition appears to be getting progressively worse. The issue seems more likely to occur when braking while the hybrid battery is near or at full charge, suggesting a possible problem in the transition between regenerative and friction braking.