Rear bumper snow and ice shield

1. A corrosion prevention device mounted on a vehicle, the corrosion prevention device comprising:

a shield comprising: a left protrusion on a left end; a right protrusion on a right end; a front end on a side facing the vehicle; and a rear end opposite the front end;

a support comprising: an upper end supporting the shield; and a lower end;

a mechanism configured to secure the support in a raised position and further configured to secure the support in a lowered position, the lower end of the support in contact with the mechanism;

a left rail, the left protrusion movably housed to slide within a first channel in the left rail; and

a right rail, the right protrusion movably housed to slide within a second channel in the right rail

wherein the front end of the shield is substantially equidistant from a surface of the vehicle in the raised position and the lowered position, and wherein the rear end of the shield is closer to the surface in the raised position than in the lowered position, and the surface is a portion of one of: a tailgate, a liftgate, or a trunk lid.

2. The corrosion prevention device of claim 1 , wherein the left rail and the right rail are installed on a rear bumper of the vehicle.

3. The corrosion prevention device of claim 1 , wherein the mechanism comprises an electric motor configured to:

lower the support from the raised position to the lowered position; and

raise the support from the lowered position to the raised position.

4. The corrosion prevention device of claim 3 , further comprising a system controller in communication with the mechanism.

5. The corrosion prevention device of claim 4 , wherein the system controller is configured to:

receive an input, the input indicating that a current position of the support should be changed; and

transmit a control signal to the mechanism indicating that the current position of the support should be changed.

6. The corrosion prevention device of claim 4 , wherein the system controller is configured to:

receive an opening signal indicating that an attempt to move the surface has occurred;

determine that the support is in the raised position; and

transmit a control signal to the mechanism comprising a command to lower the support.

7. The corrosion prevention device of claim 4 , wherein the system controller is configured to:

determine at least one of: a current weather condition and a forecast weather condition; and

transmit, based at least in part on at least one of: the current weather condition and the forecast weather condition, a control signal to the mechanism comprising a command to raise the support.

8. The corrosion prevention device of claim 7 , wherein the system controller is further configured to:

determine the current weather condition based, at least in part, on data from sensors of the vehicle.

9. The corrosion prevention device of claim 4 , wherein the system controller is configured to:

determine a person is approaching the vehicle;

determine that the support is in the raised position; and

transmit a control signal to the mechanism, the control signal comprising a command to lower the support.

10. The corrosion prevention device of claim 3 , further comprising a button, wherein the electric motor is activated based, at least in part, depression of the button.

11. The corrosion prevention device of claim 1 , further comprising a latch coupled to the upper end of the support.

12. The corrosion prevention device of claim 11 , wherein the mechanism comprises a catch configured to recess when the latch is raised.

13. The corrosion prevention device of claim 1 , wherein the corrosion prevention device is installed as a cover for a storage bin displaced within a bumper of the vehicle.