California Windshield Laws: Cracks, Tint, and Fix-It Tickets

California windshield laws require your windshield and rear window to be free of vision-impairing damage, made of safety glazing, clear of most objects and stickers, and paired with working wipers, and they sharply limit how much tint you can apply. Most violations are correctable “fix-it” tickets that cost $25 per violation to clear once you prove the repair.¹

Cracks, Chips, and Windshield Condition

Vehicle Code Section 26710 makes it unlawful to drive on a California highway when the windshield or rear window is in a defective condition that impairs your vision to the front or rear.² The statute sets no specific crack length or chip diameter for personal vehicles. The test is functional: if the damage impairs the driver’s ability to see, it violates the law. In practice, any crack running through the driver’s direct line of sight is likely to draw a citation.

When an officer finds the glass out of compliance, Section 26710 directs the officer to give you 48 hours to bring it into conformance. The officer can also arrest the driver, issue a notice to appear, and require you or the vehicle’s owner to show the court satisfactory evidence that the repair has been made.² That 48-hour window is tight if the damage requires a full replacement rather than a chip repair, so it pays to deal with damage early.

Commercial vehicles described in Section 34500 are held to a stricter, federally defined standard rather than the general impaired-vision test. Their windshields must meet the condition described in 49 C.F.R. Section 393.60(c), which sets specific limits on crack size, location, and count.²

Safety Glazing

California requires safety glazing wherever glass is used in a motor vehicle’s windows, windshield, doors, interior partitions, and roof openings. The rule applies to every motor vehicle (except motorcycles) manufactured after January 1, 1936, motorcycles built after January 1, 1969 that have a windshield, campers built after January 1, 1968, and fifth-wheel trailer coaches built after January 1, 1977.³

The glazing must meet Federal Motor Vehicle Safety Standard No. 205. California’s Title 13, Section 984 requires each piece of glazing to carry permanent markings identifying its type and compliance, visible after installation.⁴ The front windshield must be laminated glass (designated AS-1); side and rear windows may use tempered glass.

Section 26701 also prohibits red, blue, or amber translucent aftermarket material anywhere on the vehicle’s windows, windshield, or wind deflectors.³ Tint films in those colors are illegal regardless of light transmission.

What You Can and Can’t Put on the Glass

Vehicle Code Section 26708 is the broadest obstruction rule. You cannot drive with any object or material placed on the windshield, side windows, or rear windows, and you cannot place anything anywhere in or on the vehicle that obstructs or reduces your clear view through the windshield or side windows.⁵ Snow or ice buildup on the glass counts.

The statute then carves out narrow exceptions with precise placement rules:

Stickers and signs are allowed in a seven-inch square in the lower corner of the windshield farthest from the driver, a five-inch square in the lower corner nearest the driver, or a seven-inch square in the lower corner of the rear window farthest from the driver.
GPS devices may be mounted in the same seven-inch or five-inch lower-corner zones, but must sit outside the airbag deployment zone and be used only for navigation while the vehicle is moving.
Electronic toll and CHP communication devices may be affixed to the center of the uppermost portion of the windshield interior, within a five-inch square area.
Medical sun-screening devices are allowed on front-seat side windows if the driver or passenger carries a letter from a licensed physician or optometrist certifying a medical need, and they cannot be used after dark.
Rearview mirrors and factory sunvisors are exempt, as long as the sunvisors are not attached to the glass.

The rear window can be blocked or covered entirely if the vehicle has outside mirrors on both sides that each give you a view of at least 200 feet behind the vehicle.⁵ That is why loaded vans and SUVs are not automatically in violation.

Window Tinting

Section 26708.5 prohibits placing any transparent material on the windshield, side windows, or rear windows that alters color or reduces light transmittance, except where Section 26708 specifically allows it.⁶

For the windshield itself, Section 26708(c) allows transparent material only on the topmost portion, and only if four conditions are met. The bottom edge of the material must sit at least 29 inches above the undepressed driver’s seat, measured from a point five inches in front of the bottom of the backrest with the seat in its rearmost and lowest position. The material cannot be red or amber. Any lettering must be clear rather than opaque and cannot distort vision or affect primary colors. And the material cannot reflect sunlight or headlight glare into other drivers’ eyes any more than the bare windshield would.⁷ The rule of thumb about a “top four inches” is not what the statute says; the allowed strip varies with each vehicle because the measurement is taken from the seat.

Factory tinted safety glass is treated differently. It is legal if it meets U.S. Department of Transportation safety standards and is installed in a location those standards permit for that type of glass.⁶ That is why new cars often come with darker glass behind the front seats.

Wipers

Every motor vehicle with a windshield, except motorcycles, must have a self-operating windshield wiper. Vehicles first registered after December 31, 1949 need two wipers, one on each half of the windshield, unless a single wiper covers the federally required wiped area.⁸ Autonomous vehicles that cannot be operated by a human driver may be exempt if the exemption is consistent with federal law.

Section 26707 requires that wipers provide a clear view and be capable of clearing the windshield under all ordinary storm conditions while the vehicle is moving. You must use them in fog, snow, or rain.⁹ Blades worn enough to streak or skip can technically ground the vehicle.

The Fix-It Ticket and What Happens if You Ignore It

Most windshield violations are correctable. When an officer writes you up for a cracked windshield, illegal tint, or an improperly mounted device, the citation is typically a fix-it ticket. You make the repair, have a law enforcement officer or authorized agent sign off on the correction on the back of the citation, and mail it to the court with a $25 fee per violation.¹⁰ That $25 amount is set by Vehicle Code Section 40611 and applies to each correctable violation on the ticket.¹

Costs escalate if you ignore the ticket. If you fail to correct the violation or miss the court deadline, the correctable ticket converts to a standard infraction. The base fine rises, and California’s penalty assessments and surcharges can multiply the total several times over, turning a small base fine into a few hundred dollars. An unresolved ticket can also trigger a failure to appear charge and a hold on your driver’s license.

For the Section 26710 windshield-condition violation, the officer’s authority to direct a 48-hour repair and require court proof runs independently of whatever due date appears on the citation itself.²

Replacement, Insurance, and ADAS Recalibration

California does not require insurers to offer zero-deductible windshield replacement, unlike some other states. Whether your policy covers glass repair or replacement depends on whether you carry comprehensive coverage and the terms of your deductible. Professional windshield replacement on a standard passenger vehicle typically costs between $250 and $800, depending on the vehicle, the glass, and features like rain sensors or heads-up display coatings. Filing a comprehensive glass claim generally does not raise premiums, since insurers treat glass damage as an unavoidable event rather than an at-fault loss, but confirm with your insurer before filing if the repair is near your deductible.

If your vehicle has a forward-facing camera mounted at or near the windshield, replacing the glass shifts the camera’s alignment. Systems that rely on that camera, including automatic emergency braking, lane departure warning, adaptive cruise control, and pedestrian detection, can misfire if the new glass sits even slightly differently. Nearly all major automakers require recalibration after a replacement. The process may be static (using targets in a shop), dynamic (a test drive under specific conditions), or both, and it adds real time and cost to what looks like a straightforward glass swap.

California has no statute specifically mandating ADAS recalibration after windshield work. The general obligation under Section 26710 to keep the windshield from impairing driving function, combined with the manufacturer’s service requirements, means skipping recalibration is both a safety risk and a potential liability issue if a malfunctioning system contributes to a crash.

Older Vehicles

The safety glazing rule under Section 26701 applies to motor vehicles manufactured after January 1, 1936, so a pre-1936 antique with original non-safety glass is not in violation. The same age cutoffs apply to pre-1969 motorcycles and pre-1968 campers.³ Any replacement glass installed on one of these vehicles, however, must meet current standards.

1
California Legislative Information. California Vehicle Code VEH 40611
2
California Legislative Information. California Vehicle Code VEH 26710
3
California Legislative Information. California Code Vehicle Code 26701 – Safety Glazing Material
4
Legal Information Institute. California Code of Regulations Title 13 Section 984 – Safety Glazing Material
5
California Legislative Information. California Vehicle Code VEH 26708
6
California Legislative Information. California Vehicle Code VEH 26708.5
7
California Legislative Information. California Code VEH 26708 – Windshields and Mirrors
8
California Legislative Information. California Code VEH 26706 – Windshield Wipers
9
California Legislative Information. California Code Vehicle Code 26707
10
California Courts. Fix-It Ticket