"Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake-transmission shift interlock feature, preventing the shifter from being moved out of the park position and cause the Electronic Stability Control (ESC) malfunction light to illuminate, " stated NHTSA documents.
The L-Fn (Lens Function) button suspends the autofocusing operation temporarily to avoid unintended focusing on obstacles that appear suddenly between the camera and the subject.