Rdx awd under icy conditions can kill torque to all 4 wheels. in my case as soon as all torque was lost the vehicle immediately started sliding down the incline. i was able to steer the vehicle in a 180 deg turn and slide forward down the hill until torque to the wheels was finally restored. there is no mention of loss of torque in any acura literature available to me and acura refused to provide information after the incident was reported. i consider this a serious design flaw. *tr