Support assist hard drive issues

Hi!

I have had my Dell Inspiron 13 7378 laptop for less than 3 years.  Suddenly a week ago Support Assist decided it should run a scan (for the first time ever).  It came up with these errors and when I try to click to fix it, it says I need to buy a new hard drive.  I prefer to know more before just assuming it is something that can't be fixed.  But I can't find any information about what these codes mean.  Can anyone help?  Should I just take SupportAssist's recommendation at face value? 

- Targeted Read Test (SSD) - WSD06-4MX

- Linear Read Test - WSD02-EWN

- SMART Short Self Test - WHD16-LMJ

(The laptop needs a new battery as well, so I'm trying to figure out, if this is really a crisis, if I should buy one or if this is all going to add up to enough that I should just replace the laptop instead.  But I didn't expect this one to die so soon, and I really like it.)

Thanks!