Vehicle owner
Chooses coverage, authorizes work and lives with the safety, downtime and ownership consequences.
Preserve before you replace
Modern windshield replacement is no longer just a glass decision.
A modern windshield can be a structural, optical and technology-bearing component of the vehicle. When original factory glass is damaged beyond repair, replacement may involve parts authorization, vehicle-specific procedures, camera or sensor transfer, calibration, validation, customer downtime and possible out-of-pocket costs. Impact Defense OEM Windshield Preservation™ is designed to help reduce exposure to ordinary road-debris damage before that replacement chain begins.
Original glass, OEM replacement glass and aftermarket glass are not the same term.
Original factory windshield
The windshield installed when the vehicle was assembled. Preserving it avoids removal of original bonded glass and, when damage is avoided, the replacement and recalibration process that may follow.
OEM replacement windshield
Replacement glass supplied or approved through the manufacturer’s parts channel. It is replacement glass, not the original factory-installed windshield.
Aftermarket replacement windshield
Replacement glass supplied outside the automaker’s branded parts channel. Products and applications vary.
The correct part and procedure depend on the vehicle, equipment, applicable law, policy terms and current manufacturer service information. Consumers should consult qualified professionals and their insurer before authorizing replacement work.
One break can create a chain of decisions.
- Windshield damage
- Repair-versus-replacement determination
- Claim and parts authorization
- Glass removal and replacement
- Camera or sensor transfer and required calibration
- Validation, documentation and return to service
If calibration or validation does not succeed, additional diagnosis, another glass authorization, repeat replacement, dealership or specialist involvement, more vehicle downtime or additional consumer or shop cost may follow.
No single party controls the entire outcome.
Insurance company or claims administrator
Applies policy language, requirements, network rules and authorization standards. Coverage varies.
Glass or collision repair facility
Evaluates damage, follows applicable procedures, installs glass and may perform or coordinate calibration.
Calibration facility or dealership
Uses vehicle-specific information and equipment to perform or validate procedures.
Automaker
Defines vehicle specifications, service procedures and position statements.
Originating dealership or dealer group
Educates the buyer and can offer preservation before road debris exposure begins.
The industry is confronting a real alignment problem.
- AAA, Cost of Advanced Driver Assistance Systems Repairs, December 2023 ↗
AAA estimated an average windshield-replacement event of $1,439.78. ADAS component transfer and necessary calibration averaged $360, or 25.4% of the estimate.
- I-CAR summary of GM Glass Replacement Requirements, updated July 31, 2026 ↗
I-CAR summarizes GM’s current position on non-GM OE windshield glass and calibration after applicable windshield work.
- Ford Collision Repair Position Statements ↗
Ford and Lincoln publish official positions addressing OEM glass, safety, fit, structural integrity and ADAS function.
- Repairer Driven News, February 27, 2025 ↗
The Independent Glass Association reported shop experience with non-OEM calibration documentation, repeat work, delay and downtime.
- glassBYTEs, August 10, 2026 ↗
Industry reporting describes tension between automaker positions and authorization practices.
- AutoBody News, August 4, 2026 ↗
AutoBody News reported GM’s strengthened windshield and ADAS parts position.
The best replacement event may be the one that never begins.
Impact Defense is installed before damage as a professionally applied exterior sacrificial layer engineered to help absorb and disperse energy from ordinary road debris while helping protect original glass from surface wear and environmental exposure.
Impact Defense does not make glass indestructible and does not guarantee prevention of chips, cracks, edge impacts, replacement, claims or calibration. Compatibility, installation coverage, results and performance vary.
Reactive replacement path
Damage → claim → authorization → replacement → calibration → validation and return to service
Proactive preservation path
Professional Impact Defense installation → sacrificial exterior exposure layer → original glass remains in place when damage is avoided → no replacement-related claim or recalibration event begins
Request an Evaluation Conversation →Frequently asked questions
Does every automaker require OEM glass?
No. Automaker positions and vehicle-specific procedures vary.
Does aftermarket glass always cause calibration failure?
No. Products, vehicles and installations vary.
Will insurance always cover OEM glass?
No. Coverage depends on policy language, law, vehicle requirements and authorization.
Does Impact Defense eliminate the need for insurance?
No. It is a preventive exterior protection system, not insurance.
Does Impact Defense guarantee the windshield will not break?
No. It cannot protect against every impact, exposed edge, accident or extreme event.
Does Impact Defense mean calibration will never be required?
No. Requirements are determined by the manufacturer and repair procedure.