
Whether you can make a left U-turn when the left turn signal is red depends on whether there is a no U-turn sign at the intersection. If there is no prohibition sign, you can make a U-turn. If there is a no U-turn sign or no U-turn marking, you cannot make a U-turn. Additionally, you must not drive over the crosswalk, especially when the light is red. Even if U-turns are allowed, you must not affect other vehicles. Below are the precautions for making a U-turn: U-turns are allowed when there is no prohibition sign: Generally, if there is no no U-turn sign, you can make a U-turn as long as it does not interfere with normal traffic flow and is safe. Typically, the central median barrier will change from a solid line to a dashed line near the intersection. U-turns are allowed on yellow grid lines: You can make a U-turn on yellow grid lines where there is no central barrier. Yellow grid line areas indicate no stopping and are usually set up at intersections prone to congestion due to temporary parking or at entrances to important facilities.

I remember clearly when I encountered a similar situation while driving that day. When the left-turn red light is on, never attempt to make a U-turn. That time I thought I could sneak through, but ended up being caught by the camera, fined 200 yuan and got points deducted. A friend told me that traffic light rules are very clear: a red left-turn light means all turning movements are prohibited, including U-turns. Unless there's a dedicated U-turn permitted sign or a green light at the intersection, you must wait in place. This relates to special intersections in some cities, but overall, safety comes first. Develop the habit of paying more attention to traffic signals and road signs to avoid unnecessary risks.

As an ordinary driver, I have to say this issue is quite common. If you want to make a U-turn, you generally can't proceed when the left-turn signal is red. When driving, I always stop first and confirm the traffic light: if the red light is specifically for turning movements, including U-turns, you must wait. For example, in Shanghai, some intersections allow U-turns but only when the light is green - otherwise it's considered a violation. My advice is to stay relaxed while waiting at the light; it's just a matter of seconds anyway, don't take risks to save time. Also check your rearview mirror to ensure no one's tailgating, because getting home safely is what matters most.

Safe driving should always be the top priority. Making a U-turn under a left-turn red light is dangerous and may lead to accidents or penalties. I've heard many friends end up at the traffic police station for such violations, resulting in fines and demerit points. Simple rule: when the red light is on, the car stays put. Don't touch the steering wheel unless it's green—this protects both yourself and pedestrians. Also consider weather impacts; for example, wet roads in rainy conditions increase the risk of losing control. It's best to plan your route in advance and identify legal U-turn spots to avoid trouble.


