C-Pillar Vent Glass Architecture on the TLX
Unlike many modern sports sedans where the rear vent pane sits inside the moving rear door frame next to a vertical division bar, this Acura positions its stationary vent glass entirely within the C-pillar sheet metal. The rear passenger doors house only the primary roll-down glass (73400-TGV-A01 on the right, 73450-TGV-A01 on the left). Because the vent window is fixed directly to the vehicle body pinchweld behind the door frame, it serves as a structural quarter unit that bridges the roofline drip rail molding, the exterior rear quarter panel, and the interior C-pillar garnish trim alongside the rear package shelf.
Every replacement unit is an encapsulated modular piece made of tempered safety glass manufactured with a green solar-control tint. You will not find embedded defroster lines, radio antennas, wiper systems, or camera brackets attached to this pane. However, the assembly requires exact trim matching because the exterior border molding comes pre-bonded from the factory and cannot be transferred from your damaged glass.
Chrome Versus Gloss Black Trim Configurations
The cosmetic trim integrated into the encapsulated glass assembly is split strictly by the vehicle package. If you drive a base TLX, Technology, or Advance package, the outer frame features bright chrome molding. If your car is an A-Spec, Type S, or Type S PMC Edition, Acura deleted the chrome in favor of factory gloss black molding to match the dark window surrounds on the doors.
| Trim Level / Package | Molding Finish | Right / Passenger Part | Left / Driver Part |
|---|---|---|---|
| Base, Technology, Advance | Bright Chrome | 73500-TGV-A01 | 73550-TGV-A01 |
| A-Spec, Type S, Type S PMC | Gloss Black | 73500-TGV-A11 | 73550-TGV-A11 |
Whenever a broken vent pane leaves your interior exposed, I typically arrive at your location within about an hour of scheduling to secure the vehicle and install the replacement unit. When replacing this quarter glass, the perimeter seals—Acura reference 73810-TGV-A01 for the right side and 73860-TGV-A01 for the left—are single-use items that sit against the quarter windshield dam rubber (73525-SYY-000). They cannot be re-adhered or reshaped once pulled from the body opening.
Post-Installation Inspection Checklist
Once the aftermarket replacement glass is set in place, take a few minutes to check these specific integration points around the rear quarter of your car:
- Molding alignment: Confirm the encapsulated trim sits completely flush with the roofline drip rail molding above and continues the uninterrupted beltline sweep from the rear door glass.
- Finish consistency: Verify the molding finish directly matches your trim package, showing consistent bright chrome on standard/Tech/Advance cars or deep gloss black on A-Spec and Type S models.
- Interior garnish positioning: Inspect the interior C-pillar trim panel and rear shelf side bolster to confirm they snap cleanly back into place without bulging against the interior glass perimeter.
- Exterior seal compression: Check the rubber seal surrounding the outer frame to ensure it sits flat against the rear quarter sheet metal with no pinching, wavy sections, or gaps.
- Door seal clearance: Open and close the rear passenger door to confirm the trailing edge of the door frame does not clip or rub against the leading edge of the newly mounted quarter molding.
