Why is my honda crv 2018 touch screen not working?

There are a number of ways that the touch screen in Your 2018 Honda CR-V can fail, and the _way_ in which it fails is often indicative of the underlying issue. Is the screen displaying at all If not, is it black or is it blue Is it simply not accepting Your touch inputs Is it an intermittent issue, only when it's cold outside If Your screen displays nothing but black, then it's either a wiring or head unit issue. If it displays blue, then it's a software issue -- in this case, You'll need to have a dealer re-flash the system. If it won't accept Your touch inputs, it's likely there's harm to the underlying digitizer; these are often so expensive to replace that it's better to go with another head unit altogether. If it only occurs when it's cold, You may want to have a service technician diagnose.