TOYOTA issued a recall on the LX 470 model

On certain vehicles, water could enter the housing of the trailer towing wire harness converter due to inadequate waterproofing performance and improper installation location of the unit. A short circuit could occur which can cause failure of the converter, and, if a trailer is being towed at the time, can also cause failure of the trailer lights. In some cases the converter housing could melt or electrical feedback could blow the fuse, disabling the vehicle's rear lights. Driving without the vehicle tail and/or trailer lights will increase the possibility of a vehicle crash. Correction: A redesigned towing wire harness converter will be installed in a revised location.