Up to
98%
Heat Reduction

San Diego, California
Window tint sits at the meeting point of comfort and compliance, so it pays to know the California rules before you choose a shade. This guide walks San Diego drivers through the legal limits for cars, trucks and SUVs, what happens when film falls outside them, and how modern nano-ceramic film manages solar heat and glare without relying on a dark look alone.

Film that falls outside the California limits can bring consequences beyond the film itself. A correction notice, sometimes called a fix-it ticket, asks you to put the vehicle right and show proof that the problem has been resolved, which usually means removing or replacing the film with a legal shade.
Removing car window film is slow work, because the adhesive is designed to stay put and often leaves traces behind. Rear glass with defroster lines needs particular care, since damage there can be costly to repair. Fitting a legal shade in the first place avoids the whole exercise.
California sets out what is permitted on each window, and the rules read differently for passenger cars than for trucks, vans and SUVs. The diagrams below summarize the limits that apply to each vehicle type, which is the sensible starting point before you compare films or shades.
Passenger Vehicles
Passenger vehicles, including sedans and coupes, have set limits for the windshield, front side windows and rear glass.
A non-reflective tint / sun strip, is allowed 4 inches from the top as long as it does not go past the AS-1 line on your windshield.
The California law allows 70% of light visibility for front side windows.
The California law allows any shade of light visibility for rear side windows.
The California law allows any shade of light in visibility for the rear window.
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Passenger Vehicles
Hatchback, Sedan, Coupe, Station Wagon
Multi-Purpose Vehicles
Trucks, vans and SUVs are treated as multi-purpose vehicles, with their own limits for the windshield, front sides and the glass behind the driver.
A non-reflective tint / sun strip, is allowed 4 inches from the top as long as it does not go past the AS-1 line on your windshield.
The California law allows 70% of light visibility for front side windows.
The California law allows any shade of light visibility for rear side windows.
The California law allows any shade of light visibility for rear window tint.
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Multi-Purpose Vehicles
SUV, Van, Truck
Check current requirements with the relevant authority before booking work.
Kepler IR and IR+ nano-ceramic films are engineered around solar heat performance, not darkness, so a lighter shade can still do serious work. Compare the exact film and shade before you decide.
Up to
98%
Heat Reduction
Up to
99%
UV Protection
Up to
96%
Glare Reduction
Review
Warranty terms
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Upgrade your vehicle's privacy and appearance with our exclusive Nebula film. Nebula's deep tint blends luxurious aesthetics with top-notch protection.
What's the next step?
Explore our films with a full 360-degree view to help our San Diego window tinting patrons in choosing the perfect tint shade. View our varietyhere.
Tell us your vehicle and the film you have in mind, and ask a local tinter whether they carry Kepler film or can get it.


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Kepler films are made for daily use in strong sun, and the IR and IR+ nano-ceramic ranges are designed to hold their appearance rather than fade or turn purple over time. Ask your Kepler dealer to explain the coverage that applies to the film and shade you choose before you book.
How Kepler works
Kepler makes the film, not the tint job. Independent tinting businesses install window film. For a project in San Diego, California, ask a local tinter whether they carry Kepler film or can get it, then arrange the work directly with that shop.
Start your quote requestFilm availability and installation services vary by independent shop.
Kepler makes automotive and architectural window film, from everyday tint to nano-ceramic.
Independent tinting businesses install window film. Ask a local shop whether they carry Kepler film or can get it.
Share your project details, then ask an independent local tinter whether they carry Kepler film or can get it.
Check the current official tint rules and enforcement guidance for your vehicle. If you receive a citation, follow the instructions on that notice and confirm any required action with the issuing authority. Do not rely on this page for a penalty amount or a prediction about the outcome.

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