So I was on the beach,the 4wd was enabled to go up a steep sand hill,no throttle needed,just clutch,however at 15mph from 4h to 2h I shifted it to 2wd and the indicator stayed on not just that it felt heavier like if it was on 4wd,indicator on,it only went off on Transfer case neutral position,on 2wd it stayed on as 4wd even if it was on 2wd position,I restarted the engine to see if it would go off but no so I just drove 45mph and the light went off alone finally but I drove a lot on 2wd position and it wouldn't stop the light neither get lighter so it basically got stuck on 4wd even on 2wd postion, I didn't move it while going 45 I always had it in 2wd position since I got up the sand but the light stood there and it was heavy till that 45,fs5r30a,JDM vg33de with n-vtc,LSD I don't know what happened there but it was odd,any advice?