Having been the latest victom of this bug..err FEATURE!... The following is what I ended up with in my config.ini at the bottom... (And being a newb to config.ini, I was, hmm, scared at first):
[output]
notify=1
[hijack]
suppress_notify=1
[serial]
car_rate=115200
So to answer your question Tony, yes, car_rate is required as I started with the output [notify], then added [hijack] surpress_notify, and restore visuals did not work until I added [serial] car_rate to the equation.
If it's not already, this should definitely be in the FAQ under the heading, "HOW TO ENABLE RESTORE DC/CAR VISUALS FOR DUMMIES"!
Thanks everyone for the help! I can't live without visual restoration!