a few days ago i parked on a hill and when i started the LR the hill descent light in green came on in the top left corner (not sure on name). It stayed on for 45 min (dam long drive) It has stopped then started again. Also the TC, ABS and yellow hill decent have been on and off since we got it 6 month ago. But the TC and ABS work fine.

 

Do a search for "The 3 Amigo's"