The contact owns a 2006 Honda Ridgeline. The contact stated while driving at various speeds the accelerator pedal had become stuck causing the engine to stall. The vehicle was taken to the local dealer who diagnosed that the fuel relay was faulty and needed to be replaced. The vehicle was not repaired. Also, the key would not open the front driver side door and the anti-theft alarm continued to erroneously activate. The cause of the failure was not determined. Also, while operating the vehicle the front headlights were extremely dem. While inspecting the lights smoke and charring was present inside both the driver side and passenger side headlight assemblies. The cause of the failures was not determined. The failure mileage was 199,000.