I subscribe to the NHTSA weekly recalls emails, and the majority of the recalls for EVs are "and might cause a fire" warnings. Many are accompanied by "cease use immediately, and contact the manufacturer for further information and remedial actions".
Usually the recalls are a result of some sort of a wiring defect, a water ingress problem to the battery compartment, incorrect breakers/fuses, or vibrational wear on insulation on wiring components. Some are simply heat related (overheating motors/batteries) from everyday use.
By comparison, when there's a fire related recall for an ICE powered vehicle, it's usually a fuel line problem. Pretty rare, but they do appear occasionally.