My 2006 Sienna just turned 60,000 miles. Should I get the timing belt changed soon because of the age of vehicle?

It would be a good idea.

Typically this timing belt is due at 90K miles under normal or severe condition. It is probably still early. The timing belt cover may be open to check the condition of the belt. Give us a call at Pacific Auto Service at 858-457-1977, we will be happy to help. Happy Holidays!