Toyota, under the Lexus banner, introduced the world to self-parking cars a few years ago when it debuted the Lexus LS 460. It’s an interesting technology, combining cameras, parking sensors, electric-assist power steering and the driver’s sense of patience to let the car mostly park itself. It almost kind of works, too.

Toyota says it has improved the Intelligent Park Assist system for the 2010 Prius with a “Pre-Support” function that provides step-by-step guidance. Still, if it’s anything like the one on the LS, it still has some gestation before self-parking cars are really ready for prime time.

Read the 2010 Toyota Prius First Drive or read more 2010 Prius Tech!