These tales sound very similar to my experience of the past 2 weeks. Not being able to engage the overhead or backup camera; digital clock freezing, while analog is displaying correct time; touch screen not responding to touch – these were remedied by shutting engine off and restarting. However, 2 days ago after about 20 minutes of driving and changing the FM radio station, I could not get back to the map screen or to any other display function, and could not turn off the radio even with the manual knob, although it would adjust volume. This time, stopping the engine and restarting did not correct the malfunctions. The next day all worked as expected during a short trip.
A big difference between my G80 (2018, 3.3TT/HTrac) and almost all others described here is related to Sirius and mapping software. It was bought used about 20 months ago and I never activated the Sirius service, nor have I updated the mapping software (if needed I use Waze). As seen below in the software versions, they are quite a few iterations behind others shown here.
One more thing, during the startup sequence, the DIS shows a screen with a Sirius logo on the top left and the phrase “Featured favorites updated”. Now it’s possible I have seen this every day, but because of these problems I am just now noticing it. But without having a Sirius subscription, it’s curious to wonder what is being updated?
Information from vehicle DIS/head unit/Navigation system:
Model: DH PE
S/W VER.: DH PE.USA.SOP.01.004
i-BOX VER.: PR_DH_NA E400 20170124.
MAP VER: NAM.10.47.43.713.204.2
NAVI Application: PR2.NAM.HMC.170810.1001
Gracenote SDK VER.: 5.6.2.44
Gracenote DB VER.: NA[ 5804 ]