Is it illegal to drive with a broken car window in Illinois?
Reviewed by the Skyview Auto Glass technical team — NWRD-, ASE- and DINITROL-trained technicians · Updated November 2026
Quick answer
It can be. Illinois law, 625 ILCS 5/12-503(e), covers the windshield, side and rear windows — no person shall drive when any of them are in defective condition or repair that materially impairs the driver’s view to the front, side or rear. A broken side or rear window that impairs your view is the same violation as a cracked windshield.
The statute reaches side and rear glass too
Section 12-503(e) of the Illinois vehicle code is not a windshield-only rule. It names the windshield, the side windows, and the rear windows together, and it bars driving when any of them are in defective condition or repair that materially impairs the driver’s view to the front, side or rear.
A broken side window fails that standard when it leaves a gap you cannot see through, or when the plastic you have taped over it blocks your mirror view. The same is true of back glass: a shattered rear window that materially impairs your view to the rear is a violation, not just a nuisance.
The practical path after a break-in or a smash is to secure the opening and arrange replacement quickly. Our broken car window guide walks through covering the opening safely while you wait.
A temporary cover is just that — temporary. The statute treats a plastic sheet that blocks your mirror view the same way it treats the broken glass it replaced, so the cover has to keep your sightlines open while you arrange the replacement. Driving any distance with an uncovered gap, or with a cover that swings loose at speed, leaves the same impairment the law was written to address.
What to do right after a window breaks
Secure the opening first, then arrange the replacement.
- 1
Clear the broken glass
Vacuum the seats and the door panel, and pick fragments out of the weatherstripping so they do not fall into the door. See our guide on cleaning up broken car window glass.
- 2
Cover the opening
Tape heavy clear plastic over the gap from the inside so it holds against wind. Our covering guide details the materials and method.
- 3
Check your sightlines
Make sure the cover and any remaining glass still let you use your mirrors. A cover that blocks the rear view is itself an impairment under the statute.
- 4
Book the replacement
Door glass runs $180 to $400 and back glass $200 to $500+; arrange the repair before weather or debris makes the opening worse.
Plastic over a window is a temporary measure
Tape and plastic get you to the shop legally only if they do not block your view. A sheet that covers your mirror sightline trades one impairment for another. This is a plain-language explanation of Illinois law and is not legal advice.
More questions about broken windows in Illinois
Can you drive with a broken side window in Illinois?
When the break materially impairs your view to the side, section 12-503(e) applies. Securing the opening and replacing the glass promptly keeps you on the right side of the statute.
Is plastic over a car window legal in Illinois?
As a temporary cover, yes, provided it does not itself block your view. The statute reaches anything in defective condition that materially impairs the driver’s sightline, including a poorly placed cover.
What is the Illinois law on rear window visibility?
The same section covers the rear windows. A shattered or covered back window that materially impairs your view to the rear is a violation, just as a cracked windshield would be.
Related guides
More in Safety and the law
- Is it safe to drive with a cracked windshield?
- How does a windshield protect you in a crash?
- Does a cracked windshield affect the airbags?
- Can you sell or trade in a car with a cracked windshield?
- Should you replace the windshield after an accident?
- What should you do if your windshield cracks while driving?
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