FIXED!!! I have a 2018 HR-V LX with the same issue and after some research I found a fix that has been working for over a month now, even in temps down to the low 30's.
The problem is that solder joints on the back of the circuit board have cracked for some reason, which explains why some people see the issue when the temps get colder and the pins contract, breaking away from the runs on the circuit board. There's even a YouTube video of the display cutting in and out to the beat of a song on the radio
1. Adjust the steering wheel down and telescope it straight out all the way.
2. Pry off the trim around the instrument cluster.
3. Remove the Phillips screws that secure the cluster to the dash.
4. Remove the one electrical connector at the top of the back of the cluster assembly.
5. Remove the back from the cluster and disconnect the 2 wire beeper connector. Once apart, you'll find 8 pins in a vertical arrangement on the lower left.
6. With a low wattage soldering iron with a clean
tip and some small gauge solder, reflow the joints in the picture.
- Use rosin core solder and clean the solder with rubbing alcohol prior to soldering to remove any dirt.
- Don't overheat the connections when soldering. Alternate your soldering by starting at pin 1 then 5, then 2, then 6, etc.
7. Re-assemble the cluster and re-install.
I hope that this helps!