The recall is for all Cayenne variants, from the base model right up to the high-performance Cayenne Turbo, though only those built from March 8, 2010, through to January 31, 2012.
In all, some 20,278 Cayennes are affected by the recall.
According to a bulletin from the National Highway Traffic Safety Administration (NHTSA), a detached headlight could lead to the loss of visibility and thus increases the risk of a crash.
Owners of the affected vehicles should take their cars to their nearest Porsche dealer, which will replace the headlight locking assembly free of charge. For further information you can contact the NHTSA on 1-888-327-4236 (reference recall campaign number 12V065000) or Porsche on 1-800-767-7243.