Why is the Cruise Control Light On?
2 Answers
Cruise control indicator light on means the cruise control function is in standby mode. The advantages and disadvantages of cruise control are as follows: Advantages: After setting the speed as required by the driver, the vehicle automatically maintains the speed without the need to press the accelerator pedal, allowing the car to travel at a fixed speed. With this device, drivers no longer need to control the accelerator pedal during long-distance highway driving, reducing fatigue and unnecessary speed fluctuations, which can save fuel. Disadvantages: Do not use the speed control system when driving on roads with heavy traffic or poor road conditions (such as slippery surfaces, loose gravel roads, or roads after heavy rain). After the system is activated and the speed exceeds 40 km/h, do not shift the gear lever into neutral without pressing the clutch pedal, as this may cause the engine to over-rev and result in damage. If the set cruising speed is too high compared to the current traffic conditions, do not resume the set speed.
I encountered the same situation on the highway a couple of days ago! The cruise control warning light suddenly turned yellow, and my heart skipped a beat. I immediately pulled over and restarted the car, only to find that the contact switch in the steering wheel control module was stuck—this part tends to accumulate dust over time. After taking it apart and spraying some electronic cleaner, it worked fine again. Of course, it could also be due to the wheel speed sensor being clogged with mud or the brake light switch return spring breaking. I’d like to remind everyone not to force the use of cruise control, especially when the system reports an error, as it might not disengage properly. If the throttle gets locked during deceleration, it could be dangerous. Nowadays, repair shops have diagnostic tools that can pinpoint the faulty component in just five minutes by reading the error code. Spending a few hundred bucks to replace a small part can easily solve the problem.
