The Volt's Reliability, by the NumbersWith 100 million miles driven in the Chevrolet Volt, what has been the reliability? By all accounts, it has been fantastic. I am unable to find more than the most random and rare issue having been reported. If you can find some examples -- any, even the tiniest glitch -- let me know. I really would like to know.
Why has the Volt had such superior reliability? The reason is similar to why a computer with a solid-state drive has a better reliability than one with a hard disk drive. There are simply fewer moving parts. The electric motor has almost none of these items: belts, hoses, oils, spark plugs, fans, valves, distributor, transmission, and so forth. But the Volt also has a gasoline generator, you say? Yes, and as a result, it has all or most of those moving parts listed above. The counter argument is that a Volt-style gasoline engine, when it operates as a generator, as opposed to being tied to the drive shaft as the main means of propulsion, can be run in a more gentle and controlled manner, putting less strain on the system end-to-end. You can see this in the lack of a traditional transmission in the Volt, for example -- it's much simplified!