
It depends on whether the window film material meets the standards. Below are the relevant regulations for window films: Relevant regulations stipulate: According to national regulations, all vehicle windows must not use opaque or mirror-reflective film. The front windshield and the windows used for observing rearview mirrors must have a light transmittance of over 70%, while the side and rear windows must achieve at least 50% light transmittance. Window film must comply with standards: The regulations do not completely prohibit window tinting, but the film must meet the standards, particularly regarding light transmittance. Non-compliant window films can cause mirror-like reflections on the vehicle's exterior, leading to glare that creates visual obstacles. Additionally, in low-light conditions such as nighttime or during rain or snow, they can impair the driver's visibility.

I heard that if the car window tint is too dark, it will likely fail the annual inspection because it affects driving safety. Last time, a friend's car was directly rejected during the inspection because the front windshield tint didn’t meet the required light transmittance. The staff used a device to test it, and the transmittance was only a little over 50%, far below the required 70% or higher. This is no small issue—driving at night with poor visibility makes it easy to hit pedestrians or other vehicles, endangering both yourself and others. I suggest everyone prioritize safety over privacy or aesthetics when choosing tint. Opt for lighter tints that meet the standards, or use professional tools to test the transmittance at home before heading to the inspection. If you’ve already installed overly dark tint, find a reliable shop to replace it as soon as possible—it won’t cost much. Remember, safety comes first—don’t risk failing the inspection just for a bit of privacy. Also, regularly check your car windows during maintenance to catch and address issues early.

I've reviewed many automotive regulations, and overly dark window tints often fail annual inspections. For instance, the front windshield must have a light transmittance of at least 70%, with similar standards for side windows. These are mandatory requirements – inspection stations use optical testers, and any excess leads to automatic failure. I advise car owners to verify local regulations before tinting and avoid blindly following trendy dark tints. If your film is too dark, don't panic. First, get free measurements at an auto shop. Replace non-compliant films early to avoid last-minute hassles during inspection. Always choose certified brands for quality assurance – never compromise with substandard products. Maintain clean windows and prioritize safety, as reduced visibility impacts emergency response. Annual inspections exist for public safety, and compliance saves time/money. Address issues well before inspection deadlines for smoother processing.

I experienced this myself. My new car looked cool with dark tint, but it failed the annual inspection, costing me time and effort. The film was indeed too dark - the inspection station said the poor light transmission affects nighttime visibility and increases accident risks. It took me two days to replace it with a lighter tint. My advice: don't repeat my mistake. Choose lighter tints and consult professionals. Before inspection, use simple tools like flashlights to test light transmission. If it's too dark, make adjustments early - don't wait until inspection day to panic.


