Why Is My Cruise Control Not Working

At River City Tire & Automotive, we know that cruise control is a popular feature in many modern vehicles. Many motorists rely on it on road trips, while others may use it every day on their commute to work. This feature can make long drives more comfortable, and it can also help reduce fatigue for drivers. However, when the cruise control stops working, it can be quite frustrating because you don't get to utilize the full extent of your car. Here are some common reasons why your cruise control may not be working and what you can do about it.

Bad Fuse

The first thing to check if your cruise control is not working is the fuse. The cruise control system has its own fuse, which can blow out if there is a power surge or other electrical issue. If the fuse is bad, the cruise control will not be able to function. You can check the fuse box in your car's owner's manual to find the cruise control fuse and replace it if necessary. Feel free to stop by our shop if you need assistance with this.

Faulty Brake Light Switch

Another common reason why cruise control may not be working is a faulty brake light switch. The switch is designed to disengage the cruise control system when you press the brake pedal. If the switch is not working correctly, it can prevent the cruise control from turning on at all. You may need to have the brake light switch replaced by a professional mechanic.

Speed Sensor Issues

The cruise control system in your automobile relies on a speed sensor to determine how fast the vehicle is traveling. If the sensor is not working correctly, it can cause the cruise control to malfunction. 

Vacuum Leaks

Older vehicles with a vacuum-powered cruise control system can experience problems if there are leaks in the vacuum lines or connections. Vacuum leaks can cause the cruise control to stop working altogether or prevent it from maintaining a steady speed. We can inspect the vacuum lines and connections to identify any leaks and repair them.

Wiring Problems

Lastly, if there is a problem with the wiring in your vehicle, it can prevent the cruise control from working properly. The wiring may have become damaged or disconnected, or there may be a problem with the control module. 

If you are experiencing issues with your cruise control, we recommend bringing your vehicle into our auto repair shop to have one of our techs diagnose the issue and make the necessary repairs. By taking care of the issue early, you can have peace of mind that your cruise control system is there to do its job when you need it.

312 E 35th St Davenport, IA 52806 (563) 386-2700
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