2013 Lexus RX450h – Intermittent No READY Mode and Flickering Navigation Display
CUSTOMER CONCERN
READY mode intermittently fails, the navigation display flickers, and DTCs P3000, C1545, B1585, B1551, and B15F9 are stored.
CAUSE
The key-fob battery was too weak for reliable smart-key recognition, producing intermittent startup and electrical symptoms.
CORRECTION
Remove and replace the key-fob battery, clear the stored DTCs, and verify consistent smart-key recognition, READY mode, and navigation-display operation.
