It uses a front-facing camera to capture and analyze road signs in real time, effectively identifying key information such as speed limits, prohibitory signs, and warning signs, and continuously prompts the driver on the instrument panel or head-up display. This function can significantly reduce the risk of violations caused by negligence. Especially in complex road conditions or when driving at high speeds on multi-lane roads, it helps drivers adjust their speed or route in advance, thereby improving driving safety. However, the accuracy of TSR is affected by weather conditions, sign clarity, and camera cleanliness. For example, rainy or foggy weather may reduce the recognition rate. Currently, most mainstream brands such as Proton and Perodua, as well as mid-to-high-end versions of Japanese models, are equipped with this technology. If the budget allows, choosing a model with TSR can enhance driving convenience and compliance.