Is it illegal to change car fog lights to blue?

[DelIsabela]

Changing car fog lights to blue is not illegal. Car modification refers to altering the external appearance, internal styling, and mechanical performance of the original vehicle manufactured by the automaker, based on the owner's needs. It mainly includes two types: body modification and performance modification. The following are the relevant regulations for car modifications: 1. Modification requirements: Modifications can be made to the body color (including interior), engine, fuel type, frame number, etc. However, changes to the body, frame, or engine are only permitted if they are damaged beyond repair or have quality issues. When applying for modifications, proof from a repair shop and documentation of the origin of the replaced engine, body, or frame must be provided. 2. Raising the chassis is not allowed: Replacing the front bumper is permissible after approval, but modifications that enhance off-road performance, such as raising the chassis, are prohibited. If any illegal modifications are found during the annual inspection, they must be restored to their original state.

[DelArabella]

I've been driving for over 20 years and have seen many friends change their fog light colors, especially blue ones that sound cool, but in reality, it's illegal. Traffic regulations strictly stipulate that fog lights must use specific colors, such as yellow or white, to comply with national standards, and blue is simply not within the permitted range. The reason? Blue light is too similar to police car lights, which can easily cause confusion on the road, especially in foggy conditions or at night, potentially leading other drivers to misjudge and cause accidents. I've personally experienced this—a fellow car enthusiast changed his lights to blue, got pulled over by traffic police, fined 200 yuan, and had points deducted; during the vehicle inspection, it was directly rejected, all that effort wasted. From a safety perspective, yellow fog lights have better penetration, making blue lights impractical. I advise fellow drivers not to try it—driving within the law is worry-free and hassle-free, saving you from fines and the need for re-inspection.

[LilyMarie]

As a young car enthusiast who loves tinkering with mods like bigger rims or adding a spoiler for style, I gotta be honest—changing fog lights to blue is 100% illegal. The regulations clearly state that light colors must comply, and blue fog lights don’t meet standards, easily mistaken for police cars. If caught, fines start at 100-200 bucks, and in serious cases, you could face points deduction or forced removal. While mods are fun, safety comes first—wrong moves waste money and invite trouble. Best avoid sensitive parts like fog lights; stick to legal upgrades like tinted covers or interior accents for that cool factor. Bottom line: don’t risk it for a temporary thrill.

[MiaRose]

Having worked in auto repair for over a decade, I've encountered many customers who got into trouble by recklessly modifying their lights. Converting fog lights to blue is illegal because national standards strictly mandate that fog light colors must comply with specified types to avoid traffic interference. Blue light poses significant issues—it's often mistaken for police lights, leading to immediate fines ranging from tens to hundreds of yuan when spotted by traffic police, and may also affect vehicle inspection pass rates. In my experience, I've handled numerous similar cases where owners modified lights for novelty, only to face penalties and have to revert them, wasting several hundred yuan. Safety-wise, blue light has poor fog penetration and can actually increase hazards. My advice: avoid these modifications. Maintaining the original system is most reliable, saving you from unnecessary trouble and expenses.