Windshield chips and cracks are one of the most common vehicle damage events in Indiana, where highway debris and temperature extremes both contribute to glass damage. Understanding when repair is possible versus when replacement is necessary, and how your insurance handles it, allows you to make an informed decision without undue delay.
Chip Repair: When It Works
A chip that is smaller than a quarter, located outside the driver's direct line of sight, and does not extend to the windshield edge can typically be repaired with resin injection. A trained technician injects clear resin into the chip, then cures it with UV light. The result is not invisible but stops the chip from spreading and restores structural integrity. Repair costs $50 to $100 and takes 30 to 45 minutes. Most chip repairs are covered with no deductible under comprehensive insurance in Indiana.
When Replacement Is Required
Any crack longer than 6 inches cannot be repaired with resin injection and requires full replacement. Chips in the driver's direct line of sight compromise visibility even after repair and should be replaced. Damage at the edge of the windshield, within the last inch of the glass, spreads rapidly and typically cannot be repaired. Damage to vehicles with cameras or sensors mounted to the windshield glass often requires replacement to ensure proper sensor function.
ADAS Recalibration
Vehicles with forward-facing cameras for lane keeping assist, automatic emergency braking, and adaptive cruise control typically have the camera mounted to the windshield interior. After windshield replacement, the camera must be recalibrated to the new glass geometry. This recalibration costs $150 to $400 and is required for the safety systems to function correctly. Skipping recalibration after windshield replacement leaves critical safety systems operating on incorrect parameters.
Acting Quickly on Chips
A chip that is repaired promptly can last years without spreading. A chip that is ignored for weeks, particularly through Indiana's temperature swings between warm days and cold nights, will typically spread into a crack that requires full replacement. Repairing chips immediately after they occur is almost always the less expensive choice.
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