See also:

Brake fluid
The fluid level will drop slowly as the brakes wear, and will rise when the brake components are replaced. Fluid levels between the MIN and MAX lines are within the normal operating range; ...

How does the safety belt pretensioner and airbag supplemental restraint system work?
The safety belt pretensioner and airbag SRS are designed to activate when the vehicle sustains longitudinal deceleration sufficient to cause the sensors to close an electrical circuit that ...

Universal garage door opener
The universal garage door opener can be used to replace the common hand-held transmitter. ...