Does a 2005 buick lacrosse with over 100,000 miles need a timing belt change

WELL BUICK LACROSSE HAVE TIMING CHAIN.THE SERVICE SCHEDULES MAINTENANCE DONT GIVE NO TIME CHANGE.I SEEN TIMING CHAINS LAST OVER 100000 MILES OR MORE.IF YOU NOT A HARD DRIVER.TIMING STILL GOOD.CHAIN OKAY IF YOU HEAR CHAIN NOISES OR YOU NEED TO REPAIR FRONT TIMING COVER SEAL THEN REPLACE TIMING CHAIN.YOU BE THE JUDGE.IM NOT GOING TO TELL YOU NO OR YES.IF YOU GOT THE MONEY.WOULDNT HURT NOTHING.JUST THE COST AND LABOR..