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Software update

Tesla Software Update 2026.8.3

This release applies to

Vehicles

S (Refresh) Y 3 S (Legacy) X (Legacy) Model X (Legacy) Model Y Model 3 Model S (Legacy)

AI computer

AI3 AI4

Version

2026.8.3FSD 12.6.4

Release notes · 2026.8.3

Security Improvements release note

Security Improvements

S (Refresh) Y 3 S (Legacy) X (Legacy) Model X (Legacy) (AI3) Model Y (AI4) Model 3 (AI4) Model S (Legacy) (AI3) Model Y (AI3) Model 3 (AI3)

This update includes important security fixes and improvements.