The recall affects some 192,000 Prius hybrids, and concerns an engine wire harness that is connected to the Power Control Unit of the vehicle.

Toyota has announced a recall of 2016 to 2018–model Prius hybrids for an elevated risk of engine fires. The defect involves the engine wire harness, which can rub against the Power Control Unit ...

The engine wiring will have to be adapted to your 4Runner's existing harness, and some gauges may not work or may need to be adapted. There's plenty to do.

Being the biggest hybrid vehicles supplier, Toyota is aware of this and has developed a world-first technology for recycling the copper contained in wiring harnesses.