"My check engine light is on... OH MY GOD!"
"It's running bad, like no power"
"It doesn't wannnnnnna Gooooooo (Sniff)"
Just because the vehicle has a whiz bang Bluetooth audio system and bejangles that bebeep at you when you back up, doesn't mean it never needs maintenance. It still runs on gasoline.... not Hydrogen dreams. It still has oil in it's engine... with luck.
It still has sparkerators that make the boom boom whoosh happen. They wear out. Like the one on the right in this picture. 110,000 miles later, and it needs replacement.