4was and stability control warning lights come on when driving over rough asphalt, or turning right or left and road is rough. the rear of the car feels unstable and steering wheel is off-center. the lights are on until the car is turned off. when the car is turned on again and before the warning symbols come back on, the steering wheel is centered and car drives fine. infiniti has recommended replacing the hicas actuator. this has not resolved the problem for infiniti owners and are then recommended to replace the 4was control box. replacing the control box also does not resolve the issue. i have read and joined a nissan/infiniti forum where owners that have this exact problem have followed the recommendation from the nissan and infiniti dealership and still have the warning lights on. i contacted infiniti corporate offices for further information, but was informed they do not track this type of information. the 4was and stability control warning lights issue is happening to both nissan and infiniti models and throughout various years. the concern is that infiniti's recommendation it to replace the hicas actuator and spend $6k (part cost $5,500 and labor $400, but that does not resolve the problem. according to the information i have found, infiniti is not accurately diagnosing the problem.