
After the ABS warning light comes on, the vehicle can still be driven, but the ABS system will not function, and the wheels may lock up during emergency braking. Therefore, you should drive cautiously after the light comes on and try to avoid sudden braking. Once the wheels lock up, the driver loses control of the steering, and the car can only slide forward or to one side, which is very dangerous. The functions of ABS are as follows: 1. Shorten braking time: Maximize the effectiveness of the brakes, reducing braking time and distance. 2. Driving stability: Effectively prevent skidding and fishtailing during emergency braking, ensuring good driving stability. 3. Steering control: Allows steering during emergency braking, providing good steering control. 4. Reduce wear: Avoids severe friction between the tires and the ground, reducing tire wear.

A yellow warning light indicates the vehicle has detected some abnormalities but hasn't reached complete failure. Driving slowly for short distances to a safe area is acceptable, but never attempt long-distance driving under such conditions. Last week I encountered an engine yellow light - though the car was still operational, acceleration was noticeably weaker. This usually indicates emission system or sensor errors, with potential risks of catalytic converter damage. I recommend pulling over immediately to check the manual and identify which specific system is triggering the alert. The severity represented by yellow lights varies significantly between brands - German cars' yellow warnings often require more urgent attention than Japanese vehicles.

Last time when the engine yellow light came on in my car, the mechanic at the 4S shop said it could be handled depending on the situation. If accompanied by shaking, unusual noises, or power loss, immediate inspection is required; if the light is on alone without other symptoms, you can drive to a service point for diagnosis. However, driving continuously for over 50 kilometers with the yellow light on may cause chain failures. I have a friend who forced it for three days and ended up spending an extra two thousand yuan to replace the oxygen sensor. Now when I encounter the yellow light, I usually pull over and try restarting first—sometimes it's just the onboard computer giving a false alarm.

It depends on which yellow light is on. The tire pressure monitoring yellow light might indicate a slow leak, and you can drive at a reduced speed not exceeding 80km/h. The ABS yellow light is more dangerous as it increases braking distance. The engine yellow light is the most complex—sometimes it alerts due to a dirty throttle. For a new car, it's advisable to immediately connect a diagnostic tool to read the fault codes. For an older car, if it's running normally, you can delay the check. I have a ten-year-old car with the yellow light on for half a year, and it still runs, but every start-up is nerve-wracking.


