A headlamp assembly may become loose and/or detach from the fender. This could result in reduced visibility, increasing the risk of a crash. Dealers will replace the headlamp locking assemblies to correct this concern. The Porsche recall number is AC01.
Resources for the Repair and Maintenance of your Porsche Cayenne S Hybrid
Porsche Cayenne S Hybrid Models:
Porsche Cayenne S Hybrid Recalls (Recent)
A Headlight Assembly May Come Loose
Electrical & Lights, February 15, 2012
Porsche Cayenne S Hybrid Model Years
Recent Porsche Repair Estimates