It certainly wouldn't hurt to 'check' that tuner but it's going to be fairly evident if it's not working. Check it once if you/she wants to, can't hurt, it's just not that useful once you find out.
On second thought, that "fairly evident" may not be so evident, depends on the radio and how familiar you are with it. So, check things and go from there.
On second thought, that "fairly evident" may not be so evident, depends on the radio and how familiar you are with it. So, check things and go from there.