Direct Interchange and Features on the DW01574 Glass
General Motors engineered this minivan alongside its sister models under the Crossover Sport Van umbrella, meaning the Chevrolet Uplander uses NAGS part number DW01574 (or DW1574), which interchanges identically with the Buick Terraza, Pontiac Montana SV6, and Saturn Relay. Because GM transitioned away from the steeply sloped nose of the older Venture, the glass sits at a noticeably more upright angle over the dashboard across the Base, LS, and LT trims.
Unlike modern family haulers, the glass assembly here is refreshingly mechanical and straightforward:
- No embedded antenna wire: AM/FM reception runs through an external mast mounted to the passenger front fender, leaving the windshield core clear of aerial traces.
- Dot-matrix mirror shading: A heavy ceramic black frit surrounds the glass edge and expands into a dense dot matrix around the factory-glued metal mirror bracket, blocking midday sun glare above the rearview mirror.
- Shade band variations: Replacements catalog under variations like DW01574 GBN (blue upper tint) and DW01574 GTY (gray tint band), both paired to green-tinted solar glass.
- No ADAS or optical sensors: You will not find camera brackets or electro-optical rain sensors mounted against the glass face on this vehicle.
Surrounding Moldings, Cowl Fitment, and A-Pillar Clearance
A proper install relies heavily on correctly seating the hardware bordering the DW1574 opening. The perimeter of the glass requires a three-sided flexible reveal molding, cataloged under universal reference WFS D1574, to cleanly bridge the gap between the glass perimeter, the A-pillars, and the front roofline. When I replace this windshield on-site at your home or work across Toronto and the GTA, handling this upper trim with fresh material ensures wind does not catch the roof gap at highway speeds.
Along the bottom edge, the glass sits hidden behind a split two-piece plastic cowl vent panel. The wiper arms and transmission pivots emerge through cutouts in this plastic panel rather than piercing the glass itself. The plastic push-pin retainers holding the cowl often become brittle with heat age. If those retainers snap or work loose, the plastic panel lifts and flaps against the lower edge of the windshield, creating a persistent cabin rattle that owners often mistake for a loose glass seal. The interior cabin A-pillar trim panels must also be carefully unclipped from the inner frame to verify clearance along the interior edge.
Water Leaks and Washed-Out Cowl Drains
Front footwell water accumulation is a known complaint on these vans, but the leak path is frequently misdiagnosed. Rainwater naturally sheets down the DW01574 glass directly into the lower cowl tray. If leaves or road silt plug the hidden drain flaps at the base of the firewall, trapped water pools high enough to spill through the fresh-air intake duct directly onto the passenger carpet. Checking that the firewall drains dump freely beneath the vehicle whenever the cowl is apart prevents water from backing up against the bottom seam.
Does this glass require special wiring for the wiper defrost?
No. The DW01574 does not contain an embedded electric heating element or grid beneath the wiper park area. While some higher-spec LT trims originally featured an underhood HotShot heated washer fluid module (subject to GM safety recall 10153, which permanently disconnected the auxiliary heater unit), the windshield glass itself has zero electrical connectors.
Can I swap a windshield from an older Chevy Venture onto an Uplander?
No. Even though both are GM minivans, the front clip was completely redesigned with a longer, taller hood and a revised windshield rake. The older Venture uses NAGS DW01227, which has different dimensions, different curvature, and completely different molding attachments that will not seat in the frame opening.
