Toyota to Voluntarily Fix 378,000 Prius Hybrids for Overheating Problems

Toyota's US division has issued what it describes as a "limited service campaign" (and not a recall…) on approximately 378,000 U.S-spec Prius hybrids from the 2004 and 2007 model years to resolve a potential problem with the water-pump that can cause the cars to overheat. “The water pump is part of a system designed to cool the hybrid powertrain components and is separate from the engine