What You Need to Know and How to Replace Quarter Glass

Quarter glass, often overlooked, plays an essential role in vehicle visibility and aesthetics. Made from the same tempered or laminated glass as side windows and rear windshields, quarter glass is designed to shatter into tiny glass balls for safety. It’s important to recognize when to repair or replace your quarter glass to maintain vehicle integrity.

What is Quarter Glass?

Quarter glass, also known as a valence window, is the small side window located behind the doors and above the rear wheel. It is never part of the rear door. Quarter glass windows can be either stationary or retractable, depending on their positioning.

Does My Vehicle Have Quarter Glass?

Most vehicles with door windows have quarter glass panes. Minivans, which often feature an extra roof pillar, frequently include venting quarter glass to enhance ventilation for additional seating rows. Older minivans may have manual tilt mechanisms, while modern models typically offer electronic controls for convenience. Quarter glass should not be confused with opera glass, which is found in the rear pillar of older cars.

What are the Features of Quarter Glass?

Quarter glass comes in various shapes and sizes, tailored to the design of the vehicle. It can be fixed or vented, depending on the specific model and manufacturer. Modern quarter glass often includes features for improved aerodynamics and aesthetics.

Do I Need to Replace My Quarter Glass?

Given that quarter glass is made from tempered safety glass, it is crucial to replace it if it becomes damaged. This ensures continued protection and structural integrity for your vehicle.

How Do I Replace My Quarter Glass?

1. Clean the Area: Clean the glass and body panels to remove old adhesive and debris.
   2. Remove Old Glass: Use a trim panel removal tool to detach the adhesive and weatherstrip.
   3. Install New Glass: Carefully place the new glass panel into the opening, ensuring there is enough room for the trim pieces.
   4. Apply Adhesive: Press the glass panel to spread the adhesive, allowing it to set.
   5. Reinstall Trim: Reinstall the removed trim pieces.

Step-by-Step Quarter Glass Replacement

1. Remove Quarter Panel Trim: Use appropriate tools to carefully remove the trim around the quarter glass.
   2. Remove Retaining Nuts: Unscrew the retaining nuts holding the quarter glass in place.
   3. Clean Mounting Area: Clean the glass mounting area and apply new adhesive.
   4. Install New Glass Panel: Carefully place the new glass panel and tighten the retaining nuts.
   5. Reinstall Trim: Reinstall the rear quarter glass panel trim.

Quarter glass can be removed by one person without breaking when held in place by weather-stripping. Work from the inside of your car and gently work out the lip of the weather-strip in the corner of the quarter glass.

A Guide to Auto Glass Parts

Use this resource to identify the names, functions, and safety features of different auto glass panes.

For all your quarter glass needs, USA AUTO GLASS is here to help with expert services and quality products.