Adaptive Cruise Control problems of the 2019 Honda FIT

Multiple engine lights turned on at the same time: brake system warning, acc problem, auto high beam problem, road mitigation system problem, lkas problem. Lights turned on this past week. Unknown cause. Went to official Honda dealership, oil was changed and given a multi-point inspection. Everything showed as satisfactory, except for front brakes that showed as may require future attention. Battery test was fine and the sensors were cleaned. However, the engine lights still show. I do not feel safe driving my car, given the red solid warning of the brake system and multiple other problems. I am unable to drive car late a night due to the high beam problem, this all poses a safety concern to me and the other drivers on the road.

Started the car this morning and received 5 warning messages: auto high-beam problem road departure mitigation system problem collision mitigation system problem lane keeping assist problem adaptive cruise control problem car has ~34,000 miles and is in pristine condition. I am guessing this is a failure with the camera system.

Component/system involved: the multi-purpose camera system on my 2019 Honda Fit has malfunctioned, affecting critical safety features, including the adaptive cruise control (acc), lane keep assist system (lkas), and collision braking warning system (cbws). The vehicle is available for inspection upon request. Safety risk: the malfunction of these systems significantly jeopardizes safety. For example, the acc failed to maintain appropriate distance from vehicles ahead, the lkas did not provide necessary steering assistance, and the cbws failed to detect and warn of potential collisions. These issues increase the risk of accidents, especially during highway or congested traffic driving. Problem reproduction and confirmation: the issue was reproduced and confirmed by swickard Honda of thousand oaks during an inspection conducted on August 20, 2024. Inspection details: the vehicle was inspected by the dealer, who diagnosed the problem and provided a repair quote. The manufacturer has not yet physically inspected the vehicle, nor have insurance representatives or law enforcement been involved. Warning indicators: prior to the failure, warning messages appeared on the vehicle’s dashboard, including notifications for acc, lkas, and cbws system failures. These warnings first appeared in early 2024, becoming more frequent and persistent over time. Additional information: I filed a case with Honda under case #14932073 requesting a complimentary repair due to the vehicle's age and the nature of the safety system malfunction. Despite explaining the critical safety implications, Honda did not offer a resolution. Given the significant safety risks posed by the malfunction and the lack of resolution from the manufacturer, I urge the NHTSA to investigate this matter, as it may represent a broader defect impacting other vehicles of the same make and model.

Upon starting the car, all warning lights came on as disabled for the acc/lkas system and could not be reset by the driver. Mechanic shop stated that the battery was dying, needed replaced then driven 50 miles for the acc/lkas system to reset. A few weeks later there was no change. Independent mechanic stated that the error code "u300049 multipurpose camera unit internal electronic failure" was permanent and would need dealership assistance. Dealership stated that the camera system needed replaced and recalibrated to the tune of $1600. I find it extremely hard to believe this system failed by itself, rather was caused by bad design as this was a battery that needed replaced. Safety is at risk as the acc/lkas and automatic emergency braking systems were permanently disabled on the vehicle and cannot be used.