Somehow a small amber light (in the shape of a fuel pump) and a chime has worked for decades and there haven't been hordes of drivers stranded as a result. Something your grandmother could easily understand.
10-15 year old cars maybe give an additional small information message in the cluster easily dismissible with a steering wheel button.
No, the problem has been the mass importation of tech industry rejects into the car companies, as if the car companies haven't been quietly and successfully writing embedded software for 50 years, who brought their terrible habits with them. Like a need to "reinvent" UIs every six months.
Cars are safety-critical machines. They are not a place for "creatives" to experiment with UI design.
Sadly marketing drones think everybody wants a Tesla-style "everything is a screen" design whereas a 1999 Toyota pretty much had it right.
This isn't difficult. It requires no "innovation". Analog tach and speedo with idiot lights for critical alerts (there is literally an ISO standard for this) should be mandated by law. Substitute tach for a battery monitor in an EV.
EVs are the worst of both extremes. Either the entire interior is a touchscreen or you have something like the Slate, where there isn't even a radio. A room full of geniuses and what they come up with is a bluetooth speaker holder. Unbelievable, you can't throw in a DIN radio like a 1987 Datsun? Why can't EV manufacturers build a "normal" car?