A method and device for thermal mitigation. The communications device including a first radio communications subsystem configured to operate according to a first radio communications protocol and a second radio communications subsystem configured to operate according to a second radio communications protocol. The first radio communications subsystem includes a temperature sensor and an electronic processor configured to determine, via the temperature sensor, a first temperature indicative of a temperature of the second radio communications subsystem, compare the first temperature to at least one predetermined temperature threshold, and deactivate the second radio communications subsystem when the first temperature exceeds a predetermined temperature threshold of the at least one predetermined temperature threshold.