Home › Land Rover › 2013 › Range Rover Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: BLINDSPOT Monitoring Control Module - Left/Right (BMCM) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: BLINDSPOT Monitoring Control Module - Left / Right (BMCM) › Description And Operation › DTC U0300-57: Internal Control Module Software Incompatibility - Invalid / incomplete software component › Possible Causes