I would also like to inform everyone that my Lenovo G505 that I purchased in 2012 also included an LS-15 power lead. http://puu.sh/ba5OA/8aea160cbc.jpg
Let's see: 6 million cords, 29 complaints of overheating, 13 of those with property damage. I don't see the reason to "immediately" stop using the cord until a replacement can be obtained unless I actually see the cord melting and exposing wires. If the insulation is still intact, order the replacement and proceed as normal until the replacement arrives.
Good to see that Hp really cares about it's customers and is not ignorant about safety precautions as some of the other companies, well I hope the consumers also take this thing serious and get their cables replaced from Hp.