This vehcile has adjustable suspension, low , normal,high, Onstart up suspension finds its normal height,but when its done this the indicator lamp on dash drops to low!,if car is swtiched off & re-started instantly with no suspension movement or adjustment the lamp reverts to normal & drives perfectly,if however any attempt to adjust the ride ht is made the lamp reverts once again to low,the only slight concern is just before the lamp says low the rear suspension drops approx 10mm!are there any common areas to look at,imformation is hard to find on this set up any help would be appreciated .