Identifying Front Acoustic Lamination and Rear Tint on the ZDX
Determining which side window pane needs replacement on your electric ZDX comes down to position and construction rather than trim package. Whether you drive the single-motor A-Spec, dual-motor A-Spec, or the high-output Type S, Acura equips every front door from the factory with dual-pane acoustic laminated glass. You can confirm this on your driver or front passenger door by lowering the window slightly and looking at the exposed top edge; you will see two thin sheets of glass bonded around a clear inner sound-deadening interlayer. This specialized sandwich dampens wind rush and electric motor hum, matching the vehicle's quiet cabin engineering.
The rear passenger drop windows differ fundamentally from the front. Instead of acoustic lamination, the rear doors utilize single-sheet tempered glass finished with deep factory privacy tint. Because the vehicle uses conventional framed doors rather than frameless glass, both front and rear panes seat into molded upper door window run channels (cataloged under GM part numbers 85671400 on the left and 85671401 on the right). Knowing whether you need the front left pane (OEM 86772624) or the rear left pane (OEM 86772626) defines not only the glass thickness and tint level, but also the structural behavior of the glass in an impact.
GM Ultium Hardware and Part Numbering Differences
If you look up glass or mechanical door hardware for this vehicle, you will quickly notice the part numbering departs entirely from traditional Acura 5-3-3 sequences. Built on General Motors' BEV3 platform, the ZDX utilizes GM's eight-digit hardware cataloging throughout the door shells. The front right movable glass is identified under OEM 86772623, while the rear right drop glass corresponds to OEM 86772625.
Inside the door cavities, the glass panels clamp directly to lift assemblies without adhesive. The rear glass panels rest into dedicated mechanical carriers attached to power regulators (part 87868825 for the left side, 87868826 for the right side), driven by standalone electric motors (OEM 87868821 left, 87868822 right). When I install aftermarket replacement glass on your ZDX, I back the glass panel itself against defects for a full year and guarantee my installation workmanship for as long as you own the vehicle. The movable door glass carries no integral electronics, defroster lines, or driver-assist hardware, keeping the physical panel strictly mechanical.
Post-Installation Inspection for ZDX Owners
Once new side glass is mounted in your door, take a few minutes to inspect the mechanical clearance and the surrounding weatherstripping before heading out on the road.
- Inspect the exterior beltline weatherstrip moulding and the inner sealing scraper moulding at the base of the sill to confirm they lay flat against the glass surface without bunching.
- Check that the glass edge slides cleanly inside the full upper window run channel without binding or pulling the rubber out of the door frame track.
- Run the window down and inspect the exposed upper edge on front replacements to verify the laminated acoustic edge profile matches the opposite front door.
- Test the one-touch auto-up function to verify the anti-pinch system does not trigger a false bounce-back reversal at the top of the travel stroke.
- Verify the tint level on a replacement rear door pane matches the darkness of the stationary rear quarter glass behind it.
