Cruise Control Not Working? – [Here’s How to Fix It]
Cruise control is one of the most notable features of modern cars that allow drivers to relax by putting their vehicle in advanced driving mode, a.k.a cruise control. This special feature allows the driver to leave the car to an onboard computer capable of controlling the vehicle’s speed according to the needs and requirements.
However, sometimes due to various reasons, you may find your cruise control not working anymore. We understand this can be annoying, especially when planning to go out on a long commute.
But that‘s not a problem, as we will guide you on how to get rid of this issue. However, before that, we want you to learn about the most common reasons why cruise control is not working.
With that said, let’s get into it and start learning!
What are the Common Reasons Behind Cruise Control Not Working?
There are several main reasons why cruise control may not be working in a car. These include:
- Faulty Cruise Control Buttons or Switches: The cruise control buttons or switches on the steering wheel or dashboard can become worn out or damaged over time, preventing proper engagement or disengagement of the cruise control system.
- Malfunctioning Speed Control Servo (Throttle Actuator): The speed control servo, known as the throttle actuator, maintains the vehicle’s set speed. It can prevent the cruise control system from working correctly if it fails or malfunctions.
- Issues with Vehicle Speed Sensor (VSS): The vehicle speed sensor measures the vehicle’s speed and sends this information to the cruise control system. A malfunctioning or faulty VSS can disrupt the cruise control’s ability to maintain the set speed.
- Brake Pedal Switch Malfunction: The brake pedal switch is designed to deactivate the cruise control when the brake pedal is pressed. If the switch is faulty or misadjusted, it may not properly communicate with the cruise control system, preventing its activation or causing it to disengage unexpectedly.
- Clutch Pedal Switch (for manual transmission vehicles): In cars with manual transmissions, a clutch pedal switch is present to disengage the cruise control when the clutch is pressed. A malfunctioning or misadjusted clutch pedal switch can interfere with the proper functioning of the cruise control.
- Blown a fuse: The cruise control system is usually connected to a dedicated fuse. If this fuse blows due to a short circuit or overload, the cruise control system will fail to function.
- Electrical Wiring Issues: Damaged or corroded wiring connections, loose connectors, or wiring harness issues can disrupt the communication between the cruise control components, resulting in the cruise control not working properly.
- Software Issues (if applicable): In some cases, issues with the vehicle’s software or control module can affect the cruise control system. Updating the vehicle’s software may be necessary to resolve these problems.
These are some main reasons why cruise control may not work in a car. Troubleshooting and addressing these specific issues can help restore the functionality of the cruise control system.
How to Fix Cruise Control Not Working?
Now that you have learned about some of the most common causes behind the improper working or malfunctioning of the cruise control. You should have a bigger picture of the problem now, and you might be able to apply the following fixes in the best possible way.
Let’s take a closer look at the step-by-step process of how to fix cruise control:
Step 1: Checking Cruise Control Buttons and Settings
To troubleshoot issues with the cruise control buttons and settings, follow these steps:
- Verifying proper operation of cruise control buttons: Start by checking the cruise control buttons on the steering wheel or dashboard. Press each button to ensure they are responsive and click properly. Clean any button gently with a damp cloth or compressed air if it feels sticky or unresponsive. Check for any physical damage or debris that may be obstructing the buttons.
- Reviewing cruise control settings and adjustments: Access the cruise control settings through the vehicle’s infotainment system or control panel. Review the settings to ensure they are configured correctly. Check the maximum speed limit setting, distance settings (if applicable), and other adjustable parameters. Make any necessary adjustments based on your preferences and the vehicle’s specifications.
- Ensuring cruise control system is enabled: Some vehicles have an on/off switch or a dedicated button to enable or disable the cruise control system. Locate this switch or button and verify it is in the “on” position. If off, toggle it to the “on” position to activate the cruise control system.
These steps might sound too obvious and basic but trust me; these are the key to finding a quick and reliable solution without getting into the hassle of deep dissection of the vehicle. However, if everything is fine and nothing smells fishy, you must advance to the next step.
Step 2: Verifying Vehicle Speed Sensor
To verify the Vehicle Speed Sensor (VSS) and address any issues that may affect the cruise control system, follow these steps:
- Understanding the role of the vehicle speed sensor (VSS): The VSS plays a crucial role in the operation of the cruise control system. It measures the vehicle’s speed and sends this information to the cruise control module. The module then uses this data to maintain the set speed. If the VSS is malfunctioning or providing inaccurate readings, it can affect the performance of the cruise control.
- Troubleshooting VSS issues affecting cruise control: Inspect the VSS wiring and connectors. Look for any signs of damage, corrosion, or loose connections. Ensure that the wiring harness is properly connected and secured. If you notice any issues, repair or replace the damaged wiring or connectors.
- Testing the VSS: You may need a diagnostic tool or multimeter to test the VSS. Consult your vehicle’s service manual or manufacturer’s instructions for the specific procedure. It typically involves connecting the diagnostic tool or multimeter to the VSS terminals and checking for consistent voltage or frequency readings while the vehicle is in motion. Compare the readings to the manufacturer’s specifications to determine if the VSS functions correctly.
- Replacing the VSS if necessary: If the VSS fails the diagnostic test or if you suspect it is faulty, replacing the sensor may be necessary. Refer to your vehicle’s service manual for the exact location and replacement procedure. Ensure you use a compatible replacement VSS recommended by the manufacturer.
However, the vehicle’s speed sensor may work fine, and you may still have issues. Trust me, I have been there, and I know this is one of the most frustrating feelings ever. However, as an old saying, no lock is made without a key; therefore, you shouldn’t lose hope and try the next step.
Step 3: Inspecting Brake Pedal Switch
To inspect the brake pedal switch and address any cruise control issues related to it, follow these steps:
- Examining the brake pedal switch function: The brake pedal switch is a critical component that interacts with the cruise control system. Its primary function is deactivating the cruise control when the brake pedal is pressed. Start by locating the brake pedal switch, usually positioned near the top of the brake pedal arm.
- Identifying cruise control issues related to the brake pedal switch: Inspect the brake pedal switch for any signs of damage, misalignment, or wear. Check if the switch engages and disengages properly when the brake pedal is pressed and released. If the switch is stuck or not functioning correctly, it can prevent the cruise control from engaging or cause it to disengage unexpectedly while driving.
- Adjusting or replacing the brake pedal switch if needed: Depending on the specific issue identified, you may need to adjust or replace the brake pedal switch. If the switch is misaligned or not engaging properly, you can try adjusting its position to ensure proper contact with the brake pedal. Refer to your vehicle’s service manual for the correct adjustment procedure.
- Replacing the brake pedal switch: If the brake pedal switch is damaged or beyond repair, replacement may be necessary. Consult your vehicle’s service manual for the exact location and replacement procedure. Ensure you use a compatible replacement brake pedal switch recommended by the manufacturer.
By examining the function of the brake pedal switch, identifying any associated cruise control issues, and adjusting or replacing the switch if needed, you can address potential problems related to the brake pedal switch and restore the proper functioning of the cruise control system.
Step 4: Troubleshooting Clutch Pedal Switch
The clutch pedal switch is crucial in the cruise control system if your vehicle has a manual transmission. Here’s how you can troubleshoot and address cruise control problems related to the clutch pedal switch:
- Understanding the clutch pedal switch’s role: The clutch pedal switch works with the cruise control system in manual transmission vehicles. It detects when the clutch pedal is pressed, disengaging the cruise control to allow for shifting gears. It ensures the safe and smooth operation of the cruise control in manual vehicles.
- Addressing cruise control problems caused by the clutch pedal switch: If you’re experiencing issues with the cruise control not working in a manual transmission vehicle, the clutch pedal switch could be a potential culprit. Inspect the switch for any signs of damage, misalignment, or wear. Check if the switch engages and disengages correctly when the clutch pedal is pressed and released.
- Adjusting or replacing the clutch pedal switch if required: If the clutch pedal switch is misaligned or not functioning properly, it may need adjustment or replacement. Refer to your vehicle’s service manual for the correct adjustment procedure. Typically, it involves loosening the mounting bolts, repositioning the switch to align it with the clutch pedal, and tightening the bolts. If the adjustment doesn’t resolve the issue, consider replacing the clutch pedal switch with a compatible replacement recommended by the manufacturer.
Not all vehicles with manual transmissions have a clutch pedal switch for cruise control. If your vehicle doesn’t have one, the cruise control issues you’re experiencing may have a different cause.
Step 5: Checking Cruise Control Fuse
The final step to fixing your vehicle’s cruise control is to check the system’s fuse. Sometimes this small and very minute issue causes a lot of problems, and people fail to identify it in the first place.
To check the cruise control fuse and address any potential issues, follow these steps:
- Understanding the role of the cruise control fuse: The cruise control fuse provides electrical power to the cruise control system. If the fuse is blown or faulty, it can disrupt the power supply and cause the cruise control to malfunction or not work at all.
- Inspecting and testing the cruise control fuse: Locate the fuse box in your vehicle. Consult your vehicle’s manual or fuse box cover for the specific location of the cruise control fuse. Use a fuse puller or a pair of pliers to remove the cruise control fuse from its slot. Inspect the fuse for any signs of damage, such as a broken filament or discoloration.
- Testing the cruise control fuse: If it appears in good condition, you can test it using a multimeter or a fuse tester. Set the multimeter to the continuity or resistance mode and touch the fuse’s metal terminals with the multimeter probes. If the multimeter shows continuity or a low resistance reading, the fuse functions properly. If there is no continuity or a high resistance reading, the fuse is blown and needs to be replaced.
- Replacing a blown fuse: If the cruise control fuse is blown or faulty, replace it with a new one with the same rating. Refer to your vehicle’s manual or fuse box cover for the correct rating. Insert the new fuse into the appropriate slot and ensure it is securely seated.
How to Prevent Cruise Control Malfunctions in Vehicles?
To prevent cruise control from not working, consider the following tips:
- Regular maintenance: Maintain your vehicle’s overall health following the recommended maintenance schedule. Regularly inspect and service components related to the cruise control system, such as sensors, switches, and fuses.
- Check for software updates: If your vehicle’s cruise control system is software-controlled, periodically check for software updates from the manufacturer. Updated software can improve the performance and reliability of the cruise control system.
- Avoid excessive strain: Avoid putting excessive strain on the cruise control system. Be mindful of the vehicle’s weight capacity and avoid towing loads beyond the recommended limit, as it can strain the engine and impact the cruise control’s functionality.
- Proper use of cruise control: Use the cruise control system as intended and avoid engaging it in hazardous driving conditions. Using cruise control on straight and open roads with minimal traffic is recommended, allowing you to maintain a steady speed without constant adjustments.
- Avoid water damage: Prevent water damage to the cruise control system by avoiding driving through deep water or exposing it to excessive moisture. Water damage can cause electrical issues and disrupt the proper functioning of the cruise control.
- Timely repairs: Address any issues with the cruise control system promptly. If you notice any abnormalities or malfunctions, such as the cruise control not engaging or disengaging unexpectedly, have it inspected and repaired by a qualified technician.
- Follow manufacturer instructions: Always refer to your vehicle’s owner’s manual for specific guidelines and instructions related to the cruise control system’s use, maintenance, and troubleshooting. Adhere to the manufacturer’s recommendations to ensure optimal performance.
Following these tips can help prevent cruise control from not working and maintain a properly functioning system for a comfortable and convenient driving experience.
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