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Frequently Asked Questions
What is the difference between OEM and aftermarket windshields?
OEM (Original Equipment Manufacturer) windshields match the exact specifications of your factory glass — thickness, curvature, UV/IR coating, and sensor positions. Aftermarket windshields are made by third parties to fit your vehicle. Quality varies widely; reputable brands like Pilkington, Guardian, and AGC meet ANSI safety standards.
Do I need OEM glass for my windshield replacement?
Most vehicles made before 2018 without ADAS cameras can use quality aftermarket glass without issue. Vehicles with ADAS cameras (automatic emergency braking, lane departure warning) benefit significantly from OEM or ADAS-verified aftermarket glass to ensure recalibration completes successfully.
Can aftermarket windshields affect ADAS systems?
Yes. Aftermarket glass with different refractive index or coating properties can cause ADAS cameras to recalibrate incorrectly, resulting in dashboard warning lights, false alerts, or safety system failures. OEM or ADAS-verified aftermarket glass minimizes this risk. Budget aftermarket glass poses the highest risk.
How much more does OEM windshield glass cost?
OEM glass typically costs $100–$300 more than quality aftermarket for most common vehicles, and significantly more for luxury brands. For ADAS-equipped vehicles, the recalibration success rate with OEM glass often justifies the premium. We’ll tell you honestly whether your vehicle needs OEM.
Does my car insurance require OEM windshield replacement?
California law allows you to request OEM glass, but your insurer isn’t always required to cover the full cost difference over aftermarket. Some policies specifically cover OEM replacement — check your policy details. We can help you understand your coverage and request OEM if appropriate.
Which vehicles always need OEM windshields?
Tesla, late-model BMW, Mercedes-Benz, and vehicles with complex sensor integration generally require OEM or manufacturer-approved glass for reliable ADAS recalibration. We’ll assess your specific vehicle and give you an honest recommendation before quoting.
