OEM, OEE and Aftermarket Windshields: What Is the Difference?
What is the difference between OEM, OEE and aftermarket windshields?
OEM glass comes from a glass company that the car maker licenses to build its windshields to exact specifications. OEE (Original Equipment Equivalent) is another name for aftermarket glass, made without that licence. In the U.S., glass for aftermarket replacement must meet the federal glazing standard, FMVSS 205. Some vehicle makers prohibit non-original windshield glass or warn that it may affect the driver-assist camera.
Sources for this guide, as of 2026
The glass standards come from U.S. Federal Motor Vehicle Safety Standard No. 205 (49 CFR 571.205, version of October 2026), Canada's Motor Vehicle Safety Regulations and a 2026 Transport Canada background page. The vehicle maker positions and the camera risks come from I-CAR Repairability Technical Support articles (2017 to 2026), the glass terms from the trade magazine FenderBender (2021) and the cost point from AAA. The maker positions are repair guidance, not results of a glass test.
Why the windshield camera changes the glass choice
Glass is a special case of the OEM or aftermarket parts choice. Many windshields now carry driver-assistance (ADAS) equipment, such as cameras and rain and light sensors. Vehicle makers take different positions on non-original windshield glass.
What GM and Hyundai say about non-original windshield glass
| Vehicles | Maker position on non-original glass |
|---|---|
| GM vehicles, 2016 to 2025 model years | GM does not approve aftermarket glass for a windshield replacement and strictly prohibits its use. The ban also covers original-equipment (OE) glass that does not come from GM. |
| Hyundai vehicles, 2016 to 2026 model years | Hyundai says a non-original windshield may interfere with the camera, and the camera-based driver-assist systems can then operate abnormally. |
Safety standards for replacement windshield glass in the U.S. and Canada
In the U.S., Federal Motor Vehicle Safety Standard No. 205 (49 CFR 571.205) is the federal standard for vehicle glass (glazing materials), and glass made for aftermarket replacement has to meet it. Canada lists its own glazing standard, CMVSS 205 Glazing Materials, among the federal motor vehicle safety standards of the Motor Vehicle Safety Regulations. To confirm how CMVSS 205 applies to a replacement windshield on your car, ask Transport Canada.
Questions to ask the glass shop before it orders the windshield
- 1Which cameras and sensors are on my windshield?
Ask the shop to list the cameras and sensors on your windshield. On a car with a windshield camera, some vehicle makers warn that the glass type can affect the driver-assist systems.
- 2What does the procedure for my model say about glass?
Ask the shop to check the vehicle maker's repair procedure for your year, make and model, and to tell you what it says about the glass type.
- 3Does the camera need a calibration after the glass job?
Ask whether the procedure calls for a camera calibration after the new windshield goes in, and whether the quote includes it. For the cost side, see what a camera calibration can add to a repair bill.
- 4Which glass is on the quote?
Ask that the quote names the glass type (OEM, OEE or aftermarket) and the company that made the glass, so that you compare like with like.
Which windshield glass to choose
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Key Takeaways
- In the U.S., an OEE or aftermarket windshield must meet FMVSS 205, but the vehicle maker's procedure for your model can still prohibit that glass or warn against it.
- Maker positions differ by make, so check the position for your own car, not a rule that you read for another make.
- Next step: find a windshield and auto glass shop and ask for a written quote for your exact year, make and model before it orders the glass.
Frequently Asked Questions
What can go wrong with the camera if a Toyota gets an aftermarket windshield?
On Toyota vehicles with a windshield camera, repair guidance names two possible problems. The black ceramic border of some glass may keep the camera from seeing clearly through it, and aftermarket glass may lack the brackets that hold the camera. Before the shop orders the glass, ask it to confirm that the new windshield has the camera brackets for your model.
How can I tell who made my windshield glass?
Look at the code mark. In the U.S., the glazing standard requires a manufacturer's code mark that NHTSA (the National Highway Traffic Safety Administration) assigns, and the prime glazing material manufacturer must certify each piece. As of 2026, Canada does not assign or approve its own code mark, so glass makers use the code mark that the U.S. Department of Transportation assigns. Ask the shop which company the mark on your new glass belongs to.
Is an OEM windshield expensive?
In the U.S., a windshield ordered from the car's original equipment manufacturer can be expensive. To see the price difference for your own car, ask the shop for two written prices for the same job: one with OEM glass and one with OEE glass. Compare them only if the procedure for your model allows both types of glass.
Can I put an aftermarket windshield on a Ford?
Ford has not tested aftermarket glass on Ford and Lincoln vehicles, and it warns that such glass may not give an accurate camera position or distortion-free vision. That could lead to improper function of the driver-assist (ADAS) systems. On a Ford or Lincoln with a windshield camera, ask the shop for a quote with OEM glass.
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