Software update

Tesla Software Update 2026.20.3

This release applies to

Vehicles

Model Y Model S (Refresh) Model X (Refresh) Model 3 Model X (Legacy) Model S (Legacy) Model 3 (HW2.5) Model S (Legacy) (MonoCam) Model S (Legacy) (HW2.5)

AI computer

AI4 AI3

Version

2026.20.3

Release notes · 2026.20.3

Blind Spot Warning While Parked

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

If you attempt to open a door while an approaching object is detected in your blind spot (for example, a bicyclist approaching from behind) the blind spot indicator light flashes, a chime sounds, and your door will not open upon initial button press. Wait a short time and press the button a second time to override the warning.

Security Improvements

Model 3 (AI3) Model Y (AI3) Model Y (AI4) Model X (Legacy) (AI3) Model S (Refresh) (AI3) Model X (Refresh) (AI3) Model S (Legacy) (AI3) Model S (Refresh) (AI4) Model 3 (AI4) Model Y Model X (Refresh) (AI4) Model 3 (HW2.5) Model S (Legacy) (MonoCam) Model S (Legacy) (HW2.5)

This update includes important security fixes and improvements.