What to do if…
your windscreen cracks and you have pulled over safely to check whether you can continue
Short answer
If the crack interferes with your forward view, is spreading, or conditions will make visibility worse (rain/night/glare), don’t continue—use roadside assistance or a tow to get to a safer place.
Do not do these things
- Don’t keep driving “until it gets bad” (cracks can spread suddenly).
- Don’t attempt a DIY repair while stopped on a shoulder or near moving traffic.
- Don’t blast very hot defrost onto a cold windshield (rapid temperature changes can extend cracks).
- Don’t place tape/film anywhere that reduces the driver’s visibility or creates glare.
- Don’t rely on vague “it’s probably legal” assumptions—state rules vary and safety/visibility is the urgent issue.
What to do now
- Stabilize the stop. Hazard lights on. Stay aware of traffic. Only inspect the glass if you can do it without putting yourself in danger.
- Decide based on visibility from the driver’s seat (the key test).
- If the crack/chip is in your line of sight or makes you shift your head to see clearly, treat it as do not continue.
- If you see distortion, whitening, branching lines, or strong glare, assume it will be worse when moving.
- Use “likely to worsen soon” triggers to choose tow/recovery. Don’t continue if any apply:
- The crack is growing/spidering or running toward an edge.
- You expect rain, freezing temperatures, bright low sun, or night driving before you can stop again.
- There are multiple impacts or long cracks that are distracting now (they’re more likely to spread and make visibility worse).
- If you choose not to continue, contact help immediately.
- Call roadside assistance, your insurer, or a towing service.
- If you’re in an unsafe location or feel at immediate risk, call emergency services.
- If you choose to continue, make it a short relocation only.
- Drive only to the nearest safer place off fast traffic (a well-lit parking lot, service plaza, or repair shop).
- Drive smoothly, keep extra following distance, avoid potholes/curbs, and avoid strong heat aimed at the glass.
- Take a quick photo and note what happened. Helps when you’re arranging service/insurance while stressed.
- If your vehicle has cameras/sensors near the windshield, plan for the right follow-up. Some vehicles require recalibration after windshield replacement—ask the repair facility whether this applies to your model.
If you drive a commercial motor vehicle (extra USA-specific note)
- If you operate under FMCSA rules, windshield/glazing condition is part of compliance and inspections. Treat significant windshield damage as a stop-and-report issue to your carrier/safety contact and follow their instructions.
What can wait
- You do not need to decide right now whether it’s repairable or needs full replacement—get to safety first.
- You do not need to research every state’s exact wording on the roadside; make your next step based on visibility and risk of worsening.
- You do not need to negotiate costs immediately—many insurers handle glass claims after you’re safe.
Important reassurance
A cracked windshield is unsettling because it makes visibility feel uncertain. Pulling over to reassess was a sensible, safety-first choice. Choosing a tow is common and reasonable when your forward view is even slightly compromised.
Scope note
This is first-step guidance for the immediate decision after you notice a windshield crack. It does not cover long-term repair selection, pricing, or disputes.
Important note
This is general safety information, not legal advice. Laws vary by state and situation. If you’re unsure whether your view is affected, don’t continue driving—get professional help.
Additional Resources
- https://www.aaa.com/autorepair/articles/windshield-repair-and-replacement
- https://exchange.aaa.com/wp-content/uploads/2012/09/AAA-Car-Care-Windshields.pdf
- https://www.fmcsa.dot.gov/taxonomy/term/4871
- https://csa.fmcsa.dot.gov/safetyplanner/MyFiles/SubSections.aspx?ch=22&sec=64&sub=145
- https://www.law.cornell.edu/cfr/text/49/393.60