CUSTOMER CONCERN After collision damage and grille-shutter replacement, the system reports that initialization is incomplete; the original fault was P059F73 for a shutter stuck closed. CAUSE The replacement active grille shutter had not completed its required initialization. CORRECTION Place the grille-shutter system in normal run mode, cycle the ignition to complete active grille shutter initialization, clear the stored fault, and verify normal shutter operation.

CUSTOMER CONCERN The check-engine light returns with DTC P05A074 for active grille shutter actuator slipping after body repairs. CAUSE The active grille shutter assembly was missing the cover cap that retains the actuator, allowing the actuator and louver mechanism to slip. CORRECTION Remove and replace the damaged active grille shutter assembly, clear DTC P05A074, and verify the shutter completes its active test without slipping.

CUSTOMER CONCERN The active grille shutter remained inoperative after collision repairs and did not respond to commanded operation. CAUSE The collision had physically damaged the active grille-shutter actuator. DTC P05B131 was present. CORRECTION The damaged active grille-shutter actuator was replaced.