The only SSD I've had fail on me died with no warning whatsoever - died in the night about six months after I bought it. It's funny because I bought three of that particular drive and its two siblings are still going strong four years later.
I've got a range of SSDs, ranging from getting on 10 years old (Crucial C300) to a ones bought just a few months ago. All except that one dead Sandisk are still in (almost) daily use, although older ones are no longer in mission critical boxes.
So no, SSDs die with no warning. Although keeping an eye on their estimated lifespan can't hurt.