What is Cruise Control in a Car and How It Works: Principle and Benefits
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17.10.25
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Modern cars are equipped with dozens of useful features that enhance driving safety and comfort. One of the most popular among them is cruise control — an electronic system that automatically maintains a set speed without the need to constantly press the gas pedal.
In Europe, this feature has long become standard even in budget-class vehicles. In this article, we’ll explain how cruise control works, how to use it, its advantages, and when it’s best (and not recommended) to use it.
Main Types of Cruise Control Systems
The first cruise control systems appeared back in the 1950s, but over time the technology has been greatly improved. The first production car to feature this function was the 1958 Chrysler Imperial (photo below) — at that time, the system was called “Auto-Pilot.” Later, the technology spread to other models and became standard for business-class cars.
Today, most modern cars feature not only the classic but also adaptive cruise control, which responds to traffic conditions. Let’s take a closer look at it.
Adaptive Cruise Control (ACC)
Adaptive cruise control is an advanced version that uses radars, cameras, and sensors to monitor traffic conditions. It not only maintains a set speed but also automatically adjusts the distance to the vehicle ahead. If the car in front slows down, ACC gently brakes, and when the lane clears, it accelerates again. This system is especially convenient for driving on highways and in heavy traffic, reducing driver fatigue and increasing safety.
Traditional (Classic) Cruise Control
This is a basic system that allows the driver to set the desired speed, which the car will maintain until the brake pedal is pressed or the system is turned off. This option is ideal for flat highways with light traffic.
Advantages of Cruise Control in Rental Cars
For many travelers, renting a car is a great way to enjoy freedom of movement, avoid dependence on public transport, and truly enjoy the road. But even the most pleasant trip can be tiring, especially when you have to keep your foot on the gas pedal for hours. That’s where cruise control comes in — a feature that makes driving calmer, safer, and more efficient.
Main Advantages of Using Cruise Control
1. Comfort on Long Distances
During long highway trips, cruise control relieves the driver’s leg from constant pressure, allowing relaxation and better focus on the road. This is especially valuable for those renting a car for intercity or international travel across Europe.
2. Fuel Efficiency
By maintaining a steady speed without sharp accelerations, the system helps reduce fuel consumption. As a result — lower fuel costs and fewer harmful emissions.
3. Safer Driving
When the car maintains the speed automatically, the driver can fully focus on the road situation. This reduces the risk of distraction caused by fatigue or constant pedal operation.
4. Lower Risk of Fines
By setting the speed according to the limit, you avoid accidentally exceeding it. This is especially relevant on European roads, where speeding fines can be quite substantial.
5. Reduced Fatigue and Stress
During long trips, cruise control helps conserve energy, especially if you’re driving an unfamiliar route or after a flight. The ride becomes smoother, and the driving experience — more enjoyable.
Thus, for those renting a car, having cruise control is a true tool for comfort and safety. It allows you to enjoy the road and avoid unnecessary fatigue.
When Should You Avoid Using Cruise Control?
Although cruise control is a great driving assistant, there are situations when it’s better to turn it off. In such conditions, the system may fail to react quickly enough to sudden traffic changes or poor weather conditions, creating a safety risk.
When It’s Better to Rely on Your Own Reactions:
1. Heavy Traffic or Congestion
In dense traffic, speed constantly changes, so using cruise control is not only inconvenient but can also be dangerous. In such situations, it’s better to drive manually to instantly react to stops or maneuvers of other drivers.
2. Curvy or Hilly Roads
On roads with turns, climbs, and descents, the system may not always correctly assess the optimal speed. Manual control allows for more precise handling and helps prevent loss of traction.
3. Poor Weather Conditions
Rain, snow, ice, or fog are not the best conditions for automatic systems. In such cases, the driver should have full control over the speed, as even slight skidding can lead to loss of control.
4. City Traffic
In cities with frequent traffic lights, pedestrian crossings, and stops, cruise control is ineffective. It’s better to stay in full control to react quickly to changing road situations.
How to Activate and Use Cruise Control: Old and Modern Systems
The cruise control buttons may be located differently depending on the car model. In older cars, they are usually placed on the left lever under the steering wheel (which also controls turn signals and high beams), while in modern cars, they are integrated into the multifunction steering wheel. Both options serve the same purpose — to provide convenience and safety during long-distance driving.
How Cruise Control Works in Older Cars
The top of the left lever usually has a switch to turn the system on and off, and on the end — a speed control button that operates in two directions: up and down.
When the car reaches the desired speed, press the lower part of the button (SET -). The processor will record this speed and automatically maintain it by controlling the accelerator. To slightly accelerate, press the upper part of the button (RES +) — a short press increases the speed by one unit on the speedometer. You can also hold this button — the car will continue to accelerate. Release it at the desired moment and the speed will be fixed.
This type of system is considered classic — it is simple, reliable, and doesn’t require complex sensors or electronic modules like adaptive cruise control in newer vehicles.
What Modern Cruise Control Looks Like
In most modern cars, the cruise control buttons are located on the multifunction steering wheel. This allows the driver to adjust the system settings without taking their eyes off the road. They are usually grouped on the left spoke of the steering wheel — as shown in the photo below.
1. RES — resume previously set speed;
2. SET — set or decrease the current speed;
3. MODE — switch between classic and adaptive cruise control (ACC);
4. Button with car icon — adjust the distance to the vehicle ahead (active in adaptive cruise control mode);
5. + / − — fine-tune speed increase or decrease manually.
Such systems not only maintain speed but also help keep a safe distance on the highway, automatically reacting to changes in the movement of other vehicles. This makes driving more comfortable and safer — especially during long highway journeys.
Remember: even the most advanced cruise control systems, including adaptive (ACC), are designed to assist — not to replace the driver. Use this feature wisely, and your trips will remain comfortable, safe, and predictable.
How to Turn Off Cruise Control
You can turn off cruise control in several ways — depending on the system type and transmission. Below are the most common methods that work in most vehicles.
Quick Deactivation Methods (All Vehicle Types)
- Press the brake pedal — the most reliable and fastest way to instantly deactivate cruise control.
- Press the OFF or CANCEL button on the cruise control controls — for complete or temporary deactivation.
- Press the clutch pedal (in manual transmission cars) — usually also disables the system.
Deactivation in Manual Transmission Cars
- Shifting to a lower gear or moving the lever to neutral — turns off cruise control to avoid jerks.
- Pressing the brake or clutch pedal — instant deactivation.
- If the system was temporarily canceled (for example, by braking), you can restore the previous speed using the Resume button.
Deactivation in Automatic Transmission Cars
- Press the brake pedal — cruise control will deactivate immediately.
- Press the OFF or CANCEL button on the steering wheel/lever.
- Switch the gear selector to N or P mode — in most cars, this automatically deactivates the system.
- A short press on the accelerator pedal in some models temporarily cancels the set speed (to accelerate instantly).
Features for Adaptive Cruise Control (ACC)
- ACC responds to radar/cameras — temporary braking or pressing Cancel pauses it, but the sensor module remains active.
- In case of a serious malfunction (for example, incorrect sensor operation during snowfall) — it’s better to completely turn off the system with the OFF button and switch to manual control.
Rent a Car with Cruise Control at ALIN
Planning a trip across Ukraine or abroad? At ALIN, you’ll find a wide selection of modern cars equipped with all the conveniences for comfortable and safe driving. Every car undergoes a thorough technical inspection before handover and is equipped with cruise control, climate control, cameras, a quality multimedia system, and everything you need for long journeys.
ALIN is a reliable car rental service in Lviv , Kyiv , Ivano-Frankivsk and Bukovel . Choose a convenient car for your trips, book online, and hit the road with comfort and confidence!