By right the hybrid component in all hybrid car including those from honda and toyota are completely maintenance free. What we service is the non hybrid parts like the engine, brake, suspension and fuel system, just like regular non hybrid car. Even the components and material used are not muh different from regular non hybrid.

So why the service charge is high, that question must ask jonda or toyota, but I speculate that it is due to hybrid is rare and the companies had invested a lot in setting to and training to service these type of car, so they have to recover their investment.