Active Hood

How Active Hood Works

(If equipped) Model S (depending on market region and date of manufacture) features a pedestrian protection system with an Active Hood that is designed to reduce head injuries to pedestrians and cyclists in a frontal collision. Multiple sensors at the front of the vehicle are designed to detect an impact with a pedestrian when Model S is moving between approximately 19 and 52 km/h, and raise the rear portion of the hood automatically approximately 80 mm. This increases the space between the hood and the components beneath it, reducing the likelihood of injuries.

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Note
The pedestrian protection system relies on a series of sensors and algorithms designed and calibrated to determine when Active Hood should deploy. Therefore, not all pedestrian collisions result in deployment. Similarly, the Active Hood may deploy if Model S collides with an animal, vehicle, or other object.
Vehicle colliding with a pedestrian dummy with arrows showing the hood raising.

If Active Hood has been deployed, the instrument panel displays an alert and a chime sounds. Immediately take Model S to the nearest Tesla Service Center or Tesla-approved body shop. Active Hood's associated sensors and actuators must be serviced whenever Active Hood has been deployed.

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Warning
Deployment of Active Hood may cause the raised hood to partially obstruct driver vision, increasing the risk of a collision. If safe to do so, Model S can be driven to the nearest Tesla Service Center or Tesla-approved body shop. If unsafe to drive (you cannot clearly see over the raised hood, the hood latch has been damaged, etc.), you must have your vehicle transported.
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
If the instrument panel displays an alert indicating that Active Hood has been deployed in situations where it has not, immediately drive Model S to the nearest Tesla Service Center.
Informational PurposesAn informational icon, calling your attention
Note
If damage occurs to the front bumper, contact a local Tesla-approved body shop to inspect the sensors for damage.