The solution is to generate a new self-signed SSL certificate (recommended expiration = 3650 days) and upload to the Service Director. In addition, a new FLA must be generated in order to relicense any Traffic Manger instances to the Services Director. Please contact Pulse Support for assistance with generating a new FLA license.
Using a supported version of Service Director of 2.6 or higher, which supports using the Universal FLA, would negate the need to regenerate a legacy FLA as long as the Traffic Managers licensed are running version 10.1 or higher.
There is an open RFE that would implement a 90/30/15 day prior warning on the vTM instance that the SSL Server Certificate of the licensing Service Controller will be expiring.