Window regulators in most vehicles fail in time. The cables in the regulator assembly rust and break and cause the window to not roll up, fall into the door, or be permanently closed. Restore the function to all of your windows with just a little bit of time and simple hand tools. Because it is a very common issue, tutorials and DIY walkthroughs are available in many vehicle forums and sites. Get all of your windows working again and keep rain, snow, and intruders out of your car. Side and door specific. Please assure proper application while ordering.