I think reliability in its most widespread meaning means 'has not left you stranded or suffered a failure that rendered the vehicle unusable. Things like a glitch in the infotainment don't figure on most peoples understanding of reliability. My Bro-in-laws nearly new Volvo V40 has left him well and truly stranded on at least 6 occasions when the dash lit up like the flight deck of the Starship Enterprise and every single fault light came on, once he could not stop the engine and the other 5 times it stopped during different journeys several times at traffic lights - a great place to break down, when they went on holiday in it they ended up with a Nissan Joke as a courtesy car for most of the week while their Volvo was in local dealer garage in Bournemouth or Hastings. He is happy that he can change the colour of the interior LED lighting and that there is a handy place to put his mobile - after being let down like that I would have ditched it quick-smart, but 'style-over-substance' seems to fit. After my wife having experienced the reliability of a Fiat Punto a few years ago (comfortable and quite stylish, but I have seen cheap Chinese made kids bicycles with better build quality) she is more than happy that her subsequent Jazzes have never let her down, and neither have my Civics and Jazzes. My sister-in-law used to get French cars for their style, but rarely kept them long because of problems, she has been driving a Civic for about 10 years now, my brother complains that 'there is nothing to do on the car' except change the oil every so often, now that is reliability.
Like many Honda Owners I never give a moments thought that it may not start or fail to get me where I want to go, and noisy wheel bearings and gearbox are not a reliability issue as such, they are annoying but won't stop you getting to where you need to be.