A guide to quarter glass

This glass is easily forgotten, but is used almost as much as the retractable side windows. Used to help see the surrounding area, quarter glass is made with the same tempered or laminated glass as the side windows and rear windshield, designed to shatter into tiny glass balls to prevent harm. Just like any pane of auto glass, it is important to recognize when you need to repair or replace your quarter glass.

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What is quarter glass?

This side window, also known as a valence window, is located before the front side window or to the rear of the back passengers side windows of the vehicle. Quarter glass windows are either stationary or retractable, depending on the window next to which they are mounted.

Does my vehicle have quarter glass?

Most vehicles with windows in the doors have a quarter glass pane. If your quarter glass is on a hinge, then it can also be called a vent window, which were used in older vehicles before air conditioning became a standard feature. On minivans, which have an extra roof pillar, venting quarter glass is fairly popular, to allow more ventilation in the additional row of seats. Older minivans are fitted with manual tilt mechanisms, where the passenger had to unfasten the latches to tilt out the window. However, modern minivans have added power controls to operate the tilting mechanism electronically, for convenience. Quarter glass should not be mistaken for opera glass, which could be found in the rear pillar of older cars.

Do I need to replace my quarter glass?

Since quarter glass is made from the same tempered safety glass as side windows and the rear windshield, it is extremely important to your safety that you replace the quarter glass if there is any damage to the auto glass pane. Avoid exploding glass and get it replaced with Safelite!


To learn more about glass parts that we 
can repair or replace, please select from below. Visit glass technologies to discover more about the technology in your glass.

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