I have it,,,,, works a treat,,,, but no idea what security sleep is, read manual through and dont remember a reference to it.
Tbh im not worried.... if anyone has a scanner thing theres much more desirable cars.
Some key fobs go dormant for security when they have been still for a while. Latest security method development, just wondered if ours had been updated. Mine will be keyless if it reappears from VW's black hole😁