I have a 2002 LS430 with Mark Levenson system. The radio works but only with on screen touch. The volume and station controls knobs do not work. I can hear the radio but cannot control anything with the knobs. It worked before the battery was changed but now it does not work properly . Do you what could be causing this problem?
Mark Levenson system radio only works with touch screen. The knobs will not work on 2002 Lexus LS430
by Joanne12 in Watertown, MA on April 27, 2013