DTC B129F-13: Function LED - Semi-Automatic Advanced Parallel Park - Circuit open: Action

Refer to appropriate system wiring diagrams and check the parallel park LED circuit for open circuit, high resistance. Repair or install a new wiring harness as necessary
Using JLR approved diagnostic equipment, clear the DTCs and perform routine - On Demand Self Test (0x0202). If the problem persists, suspect the switch/LED