My 2006 rr td6 has been going well, but today I got in it and on the dash it said suspension lowered, I drove the car for a while then pulled over switched it off and back on again, still the same, I drove on the motorway for about 20 miles, with no issues and no faults on the dash but when I stop and switch the engine off and then back on again it still says suspension lowered and it will not allow me to rise it. Any ideas guys.