After many EVs caught fire, a defect was identified inside the individual battery cells. The company will not replace the entire battery packs in their EVs made between Nov 2017 and March 2020.
From an environmental standpoint, this large recall likely negates environmental gains from all EV sales. Yuck.
The immediate need for 82,000 new battery packs in an industry currently constrained by battery supply will hinder sales of many EVs for some time. Literally, this is 2 1/2 years production from a single large EV manufacturer (Hyundai).
Meanwhile, GM indicates they will have a fix for the Chevy Bolt EV fires in earlier models. They indicate a software update will be able to detect future battery problems, alert the driver, and then repair or replace the battery bank before it catches fire. The underlying problem on the Chevy Bolt is not the same as that on the Hyundai cars although both resulted in fires.