Lexus GX470 VSC lights on with error codes P0420 and P0430 not corrected on Lexus GX470

Some Lexus GX470 owners report experiencing issues related to the VSC (Vehicle Stability Control) lights being illuminated alongside error codes P0420 and P0430, indicating potential problems with the vehicle's stability and safety systems. These owners have found that a failed ABS module can trigger multiple warning lights, including VSC and ABS, which may require complete replacement. Additionally, some owners attempt to reset the VSC system by pressing the VSC button for three seconds, but if the light remains on, further diagnosis by a mechanic is recommended. Others have resolved VSC light issues by inspecting and replacing blown fuses, particularly a 10 amp fuse in the passenger side fuse box. Furthermore, some owners discover that a loose or faulty gas cap can also cause the Traction Control and VSC lights to activate. It is crucial for owners to address these issues promptly to ensure the proper functioning and safety of their Lexus GX470, and if problems persist, consulting a qualified mechanic or dealership is advised.