Many drivers assume a windshield warranty covers anything that happens to the glass, but most Buick Cascada replacement warranties are limited to workmanship and part defects. That means new outside damage is usually excluded: road debris chips, cracks after a stone strike, vandalism, and hail impacts are not installation problems and are typically handled through insurance. Collision damage is also outside workmanship coverage. Another common limitation is the condition of the windshield opening. If there is rust, prior body repair, or pinchweld corrosion, the bonding surface may be compromised; warranties often exclude leaks or noise tied to that underlying metal unless it is repaired first. Warranties also commonly exclude pre-existing sources of water or noise that can be mistaken for a seal issue, such as clogged sunroof drains, roof seam leaks, roof rack mounts, or worn door weatherstripping. Customer actions matter too: using a high-pressure car wash right away, removing retention tape early, prying on trim, or slamming doors during curing can limit coverage. Remember that a factory or extended vehicle warranty is separate from an installer's workmanship warranty. If something seems off, take photos, note the conditions (rain, speed, temperature), and call Bang AutoGlass so we can quickly determine whether it is a warranty adjustment or an insurance claim.