The Windows Behind the Rear Doors: Third-Row and Port Glass Explained

Most people have a word for the front windows and a word for the back windows, and then run out of words. The pane behind the rear door — the fixed one, often triangular, often tucked into the C or D pillar — usually gets called "that little one at the back".

It has names. Quarter glass, quarter light, or on our listings, the port window. On a seven-seater, the glass beside the third row is a separate piece again. Between them they are the reason two cars that look identical from the kerb need two different patterns, and they are the panes a one-size-fits-all shade has no way to cover.

This is not about the boot or the tailgate glass — that is a different pane with its own guide. This is the side glass between the rear door and the back of the car.

Why the seat count changes the pattern

The clearest proof sits in our own list. Some models are split not by year or by engine, but by how many rows of seats they have, because the body behind the rear door is a different shape:

The same split exists on two listings for vehicles never sold new here — Acura 5 seat against 7 seat, and Zotye Z8 against Z8L 7 seats — but the two above are the ones an Australian owner will recognise.

Same badge, same year, two listings. If a set is genuinely cut to the aperture, this is what has to happen — the five-seat car typically carries one fixed pane behind the rear door, while the seven-seat car has a longer body, a further pillar and a run of glass beside the third row.

The same logic scales up. The Hyundai Solati is listed by its sixteen-seat configuration, because on a bus-shaped vehicle the side glass is the vehicle.

How to tell what your car has, standing next to it

Stand at the back corner of the car and count panes of glass on one side, from the front door to the tailgate.

• Two panes — front door, rear door. A sedan, most hatches, most dual-cab utes. No port window.
• Three panes — front door, rear door, and one fixed pane before the tailgate. Most mid-size SUVs and wagons. That third one is the port window.
• Four panes — front door, rear door, a fixed pane, then a longer pane beside the third row. Seven-seat SUVs and people movers.

Then check whether the fixed pane opens. On some wagons and people movers the quarter glass pops out on a latch; on most SUVs it is bonded shut. A shade designed for a fixed pane and a shade designed for an opening pane are not the same job.

Two things that change the count without changing the badge: a dual cab with a canopy fitted (the canopy glass is not vehicle glass and no vehicle pattern covers it), and a van converted with extra windows.

Three-row vehicles in our list

These are sold in Australia with a third row (some in seven-seat form, some eight). If you are in one of them, the glass behind the second row is worth checking on the product page before you order, because the pieces offered differ vehicle by vehicle:

• Kia Carnival 2020–2026 and Kia Sorento 2021–2025
• Hyundai Palisade
• Toyota Kluger 2014–2020 and Toyota Fortuner 2017–2025
• Mazda CX-8 and Mazda CX-9 2016–2023
• Ford Everest 2023–2025
• Isuzu MU-X 2021–2025
• Mitsubishi Pajero Sport 2018–2025
• Volkswagen Tiguan Allspace 2018–2024
• Skoda Kodiaq 2025–2026
• Peugeot 5008
• Honda Odyssey 2014–2022
• Mercedes V250 2022–2026

Auto Sunshades sets start from $49.99 and are sold as separate pieces — side doors, boot or tailgate, third-row and port windows — so the honest answer to "does it cover the third row" is: it depends on the vehicle, and the variant list on the product page is where it is stated. Check there rather than assuming.

If you are shading for people in the back

Two cautions, and we will not pretend to be the authority on either.

Anything fitted inside a vehicle has to not obstruct the driver's view, and the detail of what that means is set by road rules that differ between states and territories and change over time. Our state-by-state summary of the sun shade rules is a starting point, not a ruling — check your own state road authority.

If the passenger in question is in a child restraint, the restraint manufacturer's instructions and your state road authority govern what may be placed near it. Nothing should interfere with the restraint, its harness or its anchor points. Kidsafe and your state authority are the right sources there; we sell shades, not restraints.

The short version

• The fixed pane behind the rear door is the quarter or port window. A one-size shade cannot fit it, because its shape is specific to the body.
• Seat count changes the shape of the glass behind the rear doors, which is why some of our listings split five-seat from seven-seat rather than by year.
• Count the panes on one side of your car before you order, and check whether the fixed one opens.
• Which pieces exist for your vehicle is stated on the product page — start at all products.