The affected models are those Elise sports cars built between June 2010 and February 2011, of which there are only 52 examples in the U.S. They were fitted with turn signal modules that weren't compatible with the revised front headlight configuration of the Elise.
Under certain conditions, the individual LEDs that make up the indicator may flash erratically. Additionally, should they fail, the corresponding signal on the opposite side of the vehicle, as well as the turn signal in the main instrument cluster, won’t flash at the typical increased rate.
As a result, the driver will not be visually alerted to the fact that one or more of the vehicle’s turn signals is not operating correctly and therefore the risk of a crash is increased. The issue also means that the lights fail to comply with the requirements of Federal Motor Vehicle Safety Standard 108, which concerns lamps, reflective devices and associated equipment.
If you happen to own one of the affected cars you should contact your closest Lotus dealership, which will repair the fault free of charge. For further information you can also contact the National Highway Traffic Safety Administration (NHTSA) at 1-888-327-4236 (reference recall campaign number 11V541000) or Lotus at 1-800-245-6887.