No, a Prius has a timing chain, not a belt.
Source: http://Toyota.custhelp.com/app/answers/detail/a_id/7690/~/does-my-vehicle-have-a-timing-belt-or-timing-chain%3F
timing chain
According to the Gates website the 1.5 liter four cylinder engine in a 2007 Toyota Prius has a timing CHAIN
The 3.3 liter V6 in a 2005 Toyota Sienna has a timing BELT
timing belt
it has a timing belt
2008 1.6 petrol toyota avensis timing belt or chain ?
No, older Prius used Toyota's 1.5 VVT-i and the current model uses the 1.8 VVT-i both use chains that are good for the life of the engine.
The 3.5 liter V6 engine in a 2005 Toyota Avalon has a timing CHAIN
No , the 3.3 liter V6 engine in a 2005 Toyota Sienna has a timing BELT
The 3.3 litre V6 engine in a 2005 Toyota Highlander has a timing BELT
V6 has a belt and I4 has a chain.
timing chain