China has abruptly ended one of the most recognizable visual trends in its rapidly growing automotive industry. Authorities have ordered manufacturers to remove the turquoise exterior lights used to indicate that a vehicle is operating in autonomous driving mode, a decision that could reshape the future of self-driving vehicle signaling not only in China but globally.

The move marks another significant regulatory intervention by Beijing as it tightens oversight of advanced vehicle technologies. For Chinese automakers that have aggressively promoted autonomous driving features, the ban represents a notable setback at a time when they are already facing mounting scrutiny in international markets.

China Tightens Rules on Autonomous Driving Lights

According to Chinese industry reports, the Ministry of Industry and Information Technology has begun strict enforcement of the national vehicle lighting standard. The regulation permits only four colors for exterior vehicle lighting: white, red, yellow and orange. Blue, green and turquoise are not approved under the standard.

As a result, any new vehicle equipped with turquoise autonomous driving lights after August 1 will no longer receive sales approval in China, which means it cannot be registered for road use.

The decision effectively ends a short but highly visible chapter in Chinese automotive design.

From Li Auto L9 to Industry-Wide Trend

Turquoise autonomous driving lights first appeared in 2022 on the Li Auto L9, a flagship SUV that helped popularize the concept. The lighting served a simple purpose: informing surrounding road users that the vehicle was driving itself rather than being actively controlled by the driver.

Within a few years, the feature spread across multiple Chinese brands and became increasingly common on urban roads. The distinctive turquoise glow evolved into an unofficial symbol of China’s push toward intelligent mobility and advanced driver assistance systems.

Although the lights were never formally included in a national standard, regulators had previously tolerated their use in production vehicles.

Why Chinese Authorities Are Cracking Down

Officials have not publicly presented accident data linking turquoise lights to safety incidents, but critics argue that additional exterior signals could confuse other road users and create uncertainty in traffic.

A particularly sensitive issue is color recognition. In China, blue lighting is reserved for emergency vehicles such as police cars and ambulances. Regulators appear concerned that turquoise could be mistaken for blue under certain lighting conditions or at a distance.

The crackdown on autonomous driving lights is part of a broader campaign targeting vehicle features that authorities consider potentially risky or controversial. Recent regulatory actions have also addressed battery safety standards, fully retractable door handles and the use of full regenerative braking as the default setting in electrified vehicles.

Automakers Move Quickly to Comply

Chinese manufacturers have responded swiftly. Geely has already confirmed that it will fully comply with the new requirements, and other automakers are expected to follow.

The more complicated question concerns vehicles already on the road. Several manufacturers have demonstrated that the turquoise lighting function can be disabled through software. The Zeekr 9X, for example, can deactivate the autonomous mode lighting feature, making over-the-air updates a likely solution for existing owners.

Industry analysts expect many brands to remove the function entirely rather than maintain a dormant feature that could attract regulatory attention.

China Reverses Course on Earlier Autonomous Driving Proposal

Ironically, China once considered moving in the opposite direction. In 2021, regulators evaluated a proposal to make turquoise lighting a standardized indicator for vehicles with Level 3 autonomy and above. That proposal was ultimately excluded from the national standard, and the latest enforcement action confirms that authorities have decisively rejected the idea.

The reversal highlights how quickly regulatory priorities can change in the autonomous vehicle sector.

What the Ban Means for Global Self-Driving Standards

The implications extend well beyond China. In Europe and North America, turquoise has increasingly been viewed as a leading candidate for a future international standard identifying autonomous vehicles.

Western automakers have spent years studying how autonomous vehicles should communicate their operating status to pedestrians, cyclists and other drivers. Turquoise consistently emerged as a strong candidate because it is visually distinct from existing automotive lighting colors.

China’s decision therefore complicates efforts to establish a harmonized global signaling system for self-driving vehicles. If the world’s largest automotive market rejects turquoise while Western regulators continue to support it, manufacturers may eventually need region-specific lighting solutions.

Why Turquoise Was Chosen in the First Place

The original choice of turquoise was not merely a styling exercise. Researchers selected the color after extensive psychological studies and visibility testing.

Modern traffic already assigns specific meanings to most lighting colors: white and amber are associated with front lighting and signaling, red identifies the rear of a vehicle, and blue is reserved for emergency services in many countries. Turquoise offered strong contrast against common road environments, high visibility to the human eye and clear differentiation from established automotive signals.

Those advantages explain why many engineers continue to regard turquoise as one of the most practical colors for autonomous vehicle communication.

A Turning Point for China’s Intelligent Car Industry

China’s ban on turquoise autonomous driving lights may appear minor compared with battery regulations or autonomous driving software rules, but symbolically it is significant. The country has effectively removed a visual cue that had become synonymous with its intelligent vehicle ambitions.

For automotive enthusiasts, the change means future Chinese cars will lose one of their most distinctive design elements. For the industry, it is a reminder that regulatory approval can be as important as technological innovation in the race toward autonomous mobility.

Most importantly, the decision exposes a growing divide between China and Western markets over how self-driving vehicles should identify themselves in traffic. Whether that divide eventually leads to competing global standards could become one of the next major battlegrounds in the autonomous vehicle industry.

Source: Yicai