Is a Cracked Windshield Illegal in Kansas?

Not legal advice. This guide summarizes publicly available Kansas and federal rules as of October 2026. Laws change, and how they apply depends on the facts. For a specific situation, talk to a lawyer.

The Kansas statute

The rule is in K.S.A. 8-1741, titled "Windshields and windows; damaged windshields prohibited; obstruction or impairment prohibited; wipers" (K.S.A. 8-1741). Subsection (b) says:

"No person shall drive any motor vehicle with a damaged front windshield or side or rear windows which substantially obstructs the driver's clear view of the highway or any intersecting highway."

The same statute also:

• prohibits signs, posters or other nontransparent material on the windshield or windows that substantially obstruct, obscure or impair the driver's clear view (subsection a);
• requires a windshield wiper that the driver can operate (subsection c); and
• requires every wiper to be maintained in good working order (subsection d).

Is there a size limit for cracks in Kansas?

No. Unlike some states, the Kansas statute does not say a crack longer than a certain number of inches is illegal. The test is whether the damage substantially obstructs the driver's clear view. In practice:

• A small chip low on the passenger side is unlikely to obstruct the driver's view.
• A crack running across the driver's line of sight, a spiderweb of cracks, or a large shattered area in front of the driver is much more likely to be treated as obstructing the view.
• Damaged side and rear windows are covered by the same rule.

The case annotations published with the statute show that federal courts have upheld traffic stops in Kansas where an officer saw a cracked windshield, including U.S. v. Callarman (2001) and U.S. v. Duque-Nava (2004). In other words, a cracked windshield can be the reason you are pulled over, even if what happens next depends on the facts.

Stickers, phone mounts and things on the glass

Subsection (a) is worth remembering when you put things on a new windshield. Toll tags, parking permits and dash cams are generally placed out of the driver's line of sight, near the top center behind the mirror or at the lower corners. Anything nontransparent that substantially blocks your view of the road is the kind of thing the statute prohibits. See our guide to K-TAGs, dash cams and stickers after a windshield replacement.

Commercial trucks: specific federal limits

Commercial motor vehicles follow the Federal Motor Carrier Safety Regulations, which are much more specific. Under 49 CFR 393.60 (49 CFR 393.60), in the area of the windshield above the top of the steering wheel, excluding a 2-inch border at the top and a 1-inch border at each side, the windshield must be free of damage except for:

• any crack that is not intersected by any other crack; and
• any damaged area that can be covered by a disc 3/4 inch in diameter, if it is not closer than 3 inches to any other similarly damaged area.

Truck drivers and fleet managers should treat chips as urgent for that reason. See truck and fleet auto glass.

Legal or not, when should you fix a crack?

Even if a crack is not in your line of sight, it is worth dealing with for three reasons:

1. Cracks grow. Kansas temperature swings, potholes and the defroster all make cracks longer, and a crack that starts on the passenger side can run across the driver's view.
2. Repair windows close. The industry repair standard allows some cracks up to 14 inches to be repaired, but not at the edge or in the driver's primary viewing area beyond its limits (ROLAGS repair standard (ANSI/AGSC/NWRD 002-2022)). A chip or short crack repaired now can save the windshield.
3. Strength. The windshield is part of the vehicle's safety structure. A crack weakens it.

See cracked windshield replacement for the repair-or-replace decision, or rock chip repair if it is still a chip.

If you are pulled over

Be polite, keep your documents handy, and do not argue the statute at the roadside. If you receive a citation, the way to address it is through the court process, ideally with advice from a lawyer. Getting the windshield repaired or replaced and keeping the invoice is sensible either way.

Kansas winter and wipers

Because the statute also requires working wipers, a winter check makes sense: replace torn or streaking blades, keep the washer reservoir full of winter-rated fluid, and clear snow and ice from the whole windshield before driving, not just a peephole.

Related services

• Cracked Windshield Replacement: When a crack is too long, at the edge or in your view, and what replacement involves.
• Rock Chip Repair: Fill rock chips from highways and gravel roads before they run into a crack.
• Truck & Fleet Auto Glass: Pickups, semis, work vans and company fleets, with on-site service at the yard.

Sources: K.S.A. 8-1741; 49 CFR 393.60; ROLAGS repair standard (ANSI/AGSC/NWRD 002-2022).

Good to know: Requesting a quote is free and there is no obligation. Ask for a written quote that lists the glass, any calibration and the warranty terms.