
Generally, cruise control can be activated after reaching a speed of 40 km/h. The function of cruise control is to automatically maintain the vehicle speed as set by the driver without the need to press the accelerator pedal, allowing the vehicle to travel at a constant speed. Using this device, drivers no longer need to control the accelerator pedal during long-distance driving on highways, reducing fatigue and unnecessary speed changes, which can save fuel. Extended content: 1. Activating cruise control: Press the marked button to activate cruise control, and the dashboard information window will display the status. Pressing the button again will deactivate cruise control, and the display on the dashboard will disappear. 2. Setting cruise speed: Press the cruise control lever in the direction indicated by "—SET" to set the speed. 3. How to deactivate cruise control: For manual transmission vehicles, pressing the brake pedal or clutch pedal, or pressing the "OFF" button on the lever switch will temporarily deactivate the system. For automatic transmission vehicles, pressing the brake pedal or shifting the gear lever to "P", "R", "N", or "1" will temporarily deactivate the system.

I've always enjoyed using cruise control on highways. The vehicle speed must reach at least 40 km/h to activate it. For example, my old Nissan requires 42 km/h before the button can be pressed to engage. Lower speeds won't work because in urban areas with frequent traffic lights or slow-moving traffic, the system prevents sudden acceleration to avoid accidents. Manuals often specify this threshold - when driving below 40 km/h, the indicator light won't illuminate and it beeps to signal an error. Different vehicles vary; some imported cars activate at 30 mph (equivalent to 48 km/h), so it's best to check your owner's manual. I've tried engaging at 35 km/h before - it didn't work, so I waited until reaching 45 km/h which made for much smoother operation and better fuel efficiency. However, I recommend avoiding cruise control in congested areas for safety. Using cruise control during long highway drives to reduce fatigue is good practice, but remember to maintain your vehicle's control system regularly to prevent malfunctions.

As a car enthusiast, I've observed cruise control systems for years, and most models activate within the 40-50 km/h range. For instance, common brands like Toyota and Honda typically start at 40 km/h, while BMW might require 50 km/h to engage, as the electronic stability system needs sufficient speed to maintain throttle stability. At lower speeds, the ECU may reject commands to prevent loss of control, especially on slippery surfaces where risks are higher. The owner's manual is your best guide—it specifies the exact thresholds, so avoid tampering with settings. Nowadays, adaptive cruise control is smarter, allowing lower-speed activation, but still requires at least 30 km/h with radar monitoring of front and rear vehicle distances for safety. During long drives, I set cruise at 50 km/h to ease leg strain and relax, just remembering to stay focused and avoid phone distractions.

I often use cruise control for my daily commute, but it only works when the speed is above 40 km/h. Below that, pressing the button won't activate it—that's just how the system is designed. I recommend activating it on highways when you reach around 45 km/h for safety and convenience. Avoid using it in city traffic jams, as it can cause issues. The manual states that settings vary by car model, so just check yours. It's simple to operate—just press a button.


