Replacing the windshield on a 2013 Mazda 3 is a task that should be done by a professional auto glass technician or a certified auto glass shop. Here is a general overview of the process:

1. Assessment: The first step is to assess the condition of the windshield. Depending on the extent of the damage, the technician will determine if a repair or replacement is necessary. If there are significant cracks or damage, a complete windshield replacement is typically recommended.

2. Gather Supplies: The technician gathers the necessary supplies, which include the new windshield, automotive-grade sealant, and any relevant parts or materials.

3. Safety Precautions: Safety measures are taken, including wearing safety glasses, gloves, and other personal protective equipment.

4. Removal of Old Windshield:

   • The old windshield is carefully removed using specialized tools designed to cut through the sealant that holds the windshield in place.
   • Care is taken to prevent any damage to the vehicle’s frame during the removal process.

5. Cleaning and Preparation:

   • The area where the new windshield will be installed is thoroughly cleaned to ensure a proper seal.
   • Any rust, corrosion, or contaminants are addressed to ensure a smooth and secure fit.

6. Installation of New Windshield:

   • The new windshield is carefully positioned and adhered in place using suitable automotive-grade sealant. This sealant creates a waterproof and airtight bond.
   • Excess sealant is typically removed, and the installation is inspected to ensure it’s flush and secure.

7. Curing Time:

   • The sealant requires time to cure and set properly. The duration can vary depending on the type of sealant used.

8. Clean-Up and Inspection:

   • The technician should inspect the work to confirm there are no issues with the seal, alignment, or damage to the vehicle’s paint or frame.

9. Testing:

   • The windshield is tested to ensure it is properly sealed and that there are no leaks or issues with visibility.

10. Interior Cleaning: Any debris or dirt that entered the vehicle during the replacement is cleaned from the interior.

It’s crucial to select a reputable auto glass service or technician who is experienced in working with your specific make and model of vehicle, in this case, a 2013 Mazda 3. These professionals can also provide guidance on any specific features or technologies integrated into the windshield, such as sensors for advanced driver assistance systems (ADAS). These sensors may need calibration or reprogramming after the windshield replacement to ensure they function correctly. Proper installation is essential for both your safety and the structural integrity of your vehicle.