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Do Semi-Trucks have Cruise Control?

Semi-Truck Cruise Control

If you’re a new truck driver, you may have wondered whether semi-trucks come equipped with cruise control. Cruise control is a handy feature found in many vehicles, including semi-trucks, designed to make long-haul journeys more comfortable and efficient. In this article, we’ll explore what cruise control is, its benefits for truck drivers, the types of cruise control systems available, and how to use them safely.

What is Cruise Control?

Cruise control is an automated driving feature that allows the driver to set and maintain a specific speed without using the accelerator pedal. It essentially takes over the task of maintaining a constant speed, making it easier for drivers on highways and long stretches of road.

Adaptive Cruise Control (ACC)

In modern semi-trucks, you might also encounter Adaptive Cruise Control (ACC). ACC takes cruise control to the next level by not only maintaining a set speed but also adjusting it to maintain a safe following distance from the vehicle ahead. This is especially useful in traffic or when encountering slower-moving vehicles.

Benefits of Using Cruise Control in a Semi-Truck

Using cruise control in a semi-truck offers several key benefits, with fuel savings and reduced driver fatigue being significant advantages.

Fuel Savings Benefits

One of the primary advantages of using cruise control is improved fuel efficiency. It helps maintain a consistent speed, preventing unnecessary acceleration and deceleration, which can lead to fuel wastage. This can result in significant cost savings for trucking companies and drivers.

Reducing Driver Fatigue

Cruise control plays a crucial role in reducing truck driver fatigue by taking over the task of maintaining a constant speed. This allows drivers to relax their foot on the accelerator pedal during long journeys, minimizing the physical strain on their legs and feet. With reduced workload, drivers can better focus on the road, maintain concentration, and experience less physical discomfort. Ultimately, this leads to a more comfortable and less fatigued driving experience, enhancing safety on the highways.

Types of Cruise Control Systems Available in Semi-Trucks

Semi-trucks typically offer two types of cruise control systems:

  • Traditional Cruise Control: This system allows you to set a constant speed, which the truck will maintain until you manually disengage it or apply the brakes.
  • Adaptive Cruise Control (ACC): ACC not only maintains a set speed but also adjusts it to maintain a safe following distance from the vehicle ahead, adding an extra layer of safety.

How to Use Cruise Control in a Semi-Truck

Using cruise control in a semi-truck is straightforward. Here’s a step-by-step guide:

Engaging Cruise Control:

  1. Ensure you’re driving at your desired speed.
  2. Locate the cruise control button on your dashboard or steering wheel.
  3. Press the “Cruise” or “On” button to engage cruise control.

Setting a Desired Speed:

  1. Once cruise control is engaged, accelerate to your desired speed using the accelerator pedal.
  2. Once you reach the desired speed, press the “Set” or “Coast” button to lock it in.

Disengaging Cruise Control:

  1. To disengage cruise control, simply tap the brake pedal or press the “Off” button.
  2. You can also disengage it by turning off the ignition or manually canceling it on the dashboard.

Tips for Using Cruise Control Safely

Here are some safety considerations when using cruise control in a semi-truck::

When to Use Cruise Control:

  • Ideal Conditions: Cruise control is best used on long, open highways with light traffic and clear weather.
  • Avoid Using in Heavy Traffic: Do not use cruise control in heavy traffic or city driving where you may need to frequently adjust your speed.

How to Use Cruise Control in Hilly Terrain:

In hilly terrain, use cruise control cautiously. It may cause your truck to speed up on downhill slopes and lose speed on uphill grades.


In summary, semi-trucks do come equipped with cruise control, and it can be a valuable tool for new truck drivers. It offers benefits such as fuel savings and improved driving comfort on long journeys. However, it’s essential to use cruise control safely, understanding when and where to engage it for the best results. With practice and caution, cruise control can become a trusted ally for truck drivers on the open road.

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