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What does the cancel button on a car mean?

2 Answers

AniyahFitz

07/25/25 1:34am

The cancel button on a car is used to deactivate the cruise control. Cruise control, also known as speed control system or automatic driving system, functions to maintain the vehicle's speed as set by the driver without the need to press the accelerator pedal, allowing the car to travel at a constant speed. The conditions for setting cruise control are: 1. Cruise control should be used on highways or fully enclosed roads; using it on non-enclosed roads or in complex road conditions is not conducive to traffic safety. 2. It is prohibited in rainy weather and snowy or icy conditions. 3. If there are too many vehicles on the road, the cruise control system should not be used. 4. It is prohibited on winding mountain roads or roads with too many curves. Under normal circumstances when navigating curves, appropriate acceleration is needed to provide greater steering force. In cruise control mode, the vehicle automatically maintains a constant speed, with the throttle controlled by the onboard computer, which can pose dangers when driving on curved roads.

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AnaFitz

08/10/25 4:11pm

I've been driving long-haul trucks for over a decade and am very familiar with the cancel button in vehicles. In the cruise control system, the cancel button is used to deactivate the set speed. For example, when I set my speed to 80 km/h on the highway, if there's sudden traffic congestion or a curve ahead, I press this button to let the vehicle automatically decelerate to normal throttle control, avoiding the risk of sudden braking. Similar buttons exist in air conditioning and navigation systems – for instance, the AC's cancel button can quickly exit auto mode and switch to manual temperature adjustment. The purpose of this button is to allow drivers to instantly interrupt current operations with one press, reducing distractions and improving safety. I recommend all new drivers locate this button in their vehicles and develop the habit of using it during critical moments, as driving safety should always come first. During routine maintenance, also pay attention to the button's responsiveness and prevent dust buildup from affecting its functionality.

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