Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Rear Window Transmission Last?

How Long Does a Rear Window Transmission Last?

Rear Window Transmission

If your car has a power rear window, it has a motor and a regulator, sometimes called a “transmission”. This configuration is used in all power windows, although your power rear glass setup is a little bit different from what you’ll find behind the door panel on the driver or passenger doors. However, the way they work is pretty similar.

When you press the button to open the rear glass, the motor produces rotational motion. This must be translated into either vertical or horizontal movement depending on the style of window in question. That’s what the transmission does. It’s usually made of metal and looks something like a big pair of scissors. As the motor turns, the transmission opens and closes. This moves the window in the desired direction.

The same factors that affect your other windows will affect the rear window transmission. Primarily, the issue is one of use rather than time or mileage. If you use the back glass heavily, it puts wear and tear on the rear window transmission (which must move every time you open or close the window). Over time, this will damage the transmission and it will need to be replaced.

If the regulator/transmission fails completely, the back glass will not open or close. It may be stuck open, which will allow exhaust fumes, heat or cold from outside, rain and other elements into your vehicle.

The symptoms of a failing rear window transmission are relatively easy to spot. They include:

  • The window moves with a jerking motion
  • The window does not move at all
  • There is an unusual noise when the window moves, such as a scraping, grinding of squealing
  • The window only opens or closes partially
  • The window closes crooked

If your rear window is experiencing any of these symptoms, chances are good that the rear window transmission is about to fail. A certified mechanics can inspect the system and replace the rear window transmission if necessary.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...

Related questions

Q: How do I use the one-touch up or down front windows?

The one-touch up or down power windows allow you to entirely roll up or roll down the front windows, with just one quick press of a button. Press either front Power Window switch down all the way and immediately release...

Q: How Does a Heads-Up Display Operate?

In simplest terms the HUD or heads up display works by reflecting light off the windshield to display gauges and other vital driver information in order to reduce or eliminate the need to look away from the road ahead. This...

Q: Window trim might be melting from sunlight

Greetings and thank you for writing in with this question! If this concern is related to the rear quarter glass, Toyota released a Technical Service Bulletin in May 2012 (TSB 0075-12) that addresses this issue. The TSB outlines the diagnostic...