On June 19, 2024, AutoNation was notified by third-party provider CDK Global of a cyber incident affecting CDK's systems, including the dealer management system (DMS) supporting AutoNation dealership sales, service, inventory, CRM, and accounting functions. AutoNation took containment steps and activated business continuity plans. DMS access has been restored; some ancillary integrations remain limited. Q2 2024 EPS impact estimated at ~$1.50/share. No indication of compromised personal data disclosed.