does this vechilce have a timing belt or chain ? on 2005 Lexus RX330

How do I know if I have a timing belt that needs to be changed. And if so, at what interval does this change have to occur ?

Asked by for the 2005 Lexus RX330
Most V6 and V8 vehicles have timing chains. Timing belts are more often seen in 4cyl engines.
2 more answers
As shadetreeauto said, it has a timing belt.

has a belt.