Cruise control (sometimes known as speed control or autocruise, or tempomat in some countries) is a system that automatically controls the speed of a motor vehicle. The system is a servomechanism that takes over the throttle of the car to maintain a steady speed as set by the driver. Basically, it takes over the throttle to keep the speed consistent as it was set by the driver. For example, if you set the cruise control to 80 mph, the vehicle will go 80 mph straight, up, or down hills and stays on until you hit the brake.
The set button is to set activated cruise control. Once active, each press and release will drop your cruise speed by one mph. ‘Resume’ will return to your previous set speed. Each press and release will increase your speed by one mph.
Basically, here are few things you should know about the cruise control;
The cruise control feature is most commonly used for long trips as it improves comfort for the driver. After an hour or two on the road, your foot may get tired or your leg may have a cramp and needs to be moved. The cruise control allows you to safely move your leg without pushing down or letting up on the gas.
Another nice feature of cruise control is you can set it to the speed limit so you do not have to worry about speeding tickets. Many drivers inadvertently go over the speed limit, especially on long trips. By having the cruise control in place, you will not have to worry about accidentally speeding on the highway or backroads.
Engaging Cruise Control
Locate the cruise control button on your vehicle; most cars have it on the steering wheel. Once you are at the desired speed, hold your foot on the gas pedal. Set the cruise control by pushing the cruise on/off button, then take your foot off of the gas. If you maintain the same speed, your cruise control has been activated.
Deactivating Cruise Control
To turn the cruise control off, press the brake pedal down. This will give you back control of the gas and brake pedal. Another option is to push the cruise on/off button again, as long as your foot is on the gas pedal.
Reengaging Cruise Control
If you have hit the brake and want to turn the cruise control back on, press the cruise on/off button and you will feel the vehicle resume the speed you were at before.