Matching the Green Solar Tint and Door Division Bar
The rear door quarter glass on this flagship sedan sits inside a dedicated framed door structure, but getting the replacement right comes down to matching the factory solar control tint and aligning the vertical channel properly. Acura assigned OEM part number 73405-TY3-A00 to the right rear quarter window and 73455-TY3-A00 to the left side. Even though the roll-down window next to it takes the most abuse, the stationary glass shares the identical green-tinted solar profile. When I hold a replacement pane up against the front and rear door glass, that soft green cast must match across the board, or the entire side profile of the car looks mismatched in direct sunlight.
The quarter window does not glue to the vehicle body shell. Instead, it nests directly into the rear door frame assembly, bordered by the upright division bar sash—part 72731-TY2-A11 on the right side and 72771-TY2-A11 on the left. Because RLX production numbers were low throughout its run, tracking down replacement panels requires checking glass distributors that carry high-grade aftermarket options from manufacturers like Pilkington, FYG, PGW, or XYG, which is the only type of glass I source and install. Before putting any panel into the door cavity, I run a finger along the outer edge to verify that the perimeter profile is completely smooth and free of edge nibs that could pinch the molded rubber run channel.
Interior Sunshade Clearance and Sash Realignment Checks
Once the quarter window is seated inside the rubber run channel and the division bar is bolted back into position, the mechanical clearances inside the door frame require close attention. Higher trim packages, like the Technology and Advance Packages on both the base front-wheel-drive models and the Sport Hybrid SH-AWD, include retractable manual sunshades integrated into the rear door cards. The upper guide hooks for these shades sit along the inner window frame near the top joint of the division bar.
Before reattaching the interior door panel, I verify three specific mechanical checks on the stationary quarter glass and its surrounding hardware:
- Division sash vertical true: The upright channel must be perfectly parallel to the roll-down window's rear edge. If the lower mounting fastener is tightened while the division bar is tilted even a millimeter backward, the quarter glass binds in its rubber channel while the main window binds on its track as it travels upward.
- Channel seal seating: The rubber encapsulation that wraps around the stationary glass must be fully seated without puckers or rolled lips against the exterior bright chrome or gloss black frame trim. A pinched lip creates wind whistle at highway speeds that can be maddening in a cabin this quiet.
- Sunshade pull clearance: With the division bar secured, the gap between the glass face and the inner channel must leave enough clearance for the built-in side sunshade to pull smoothly to its upper retaining clip without rubbing the glass surface.
Does this quarter glass have an integrated antenna or defroster?
No. The rear door quarter glass on this car is completely passive. It is a solid pane of tempered solar glass with no heating elements, radio antenna wires, or electronic sensors attached to it. The audio antennas and rear defrost grids are located on the main back glass rather than the side door glass.
Can the quarter window be replaced without pulling the door panel?
No, it cannot. The glass is held securely in place by the upright division sash that separates it from the primary roll-down window. Accessing the lower mounting bolt for this sash bar requires removing the interior door panel completely so the division bar can be loosened and shifted forward to release the quarter window.
