2021 Honda Civic Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2021 Honda Civic and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2021 Honda Civic cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2021 Honda Civic cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What steps should I take to diagnose the cruise control issue in my 2021 Honda Civic?

To effectively diagnose the cruise control issue in your 2021 Honda Civic, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on your steering wheel to ensure they are operational, since faulty buttons can lead to engagement problems. Following this, verify the speed sensor's performance, as it is essential for the cruise control system to function correctly. Utilizing an OBD-II scanner can help you identify any error codes that may indicate specific issues within the system. Additionally, ensure that your brake lights are functioning properly, as a malfunctioning brake light switch can prevent the cruise control from engaging. Don’t forget to inspect the vacuum lines for any leaks or damage, as these can significantly impact the system's performance. If these steps do not resolve the issue, it may be time to consult a mechanic or dealership for professional assistance, as they possess the expertise and tools necessary for a thorough diagnosis and repair. By following this structured approach, you can systematically identify and address the cruise control problem in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2021 Honda Civic?

When troubleshooting cruise control issues in a 2021 Honda Civic, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied; if this switch malfunctions, the system may not engage at all. Additionally, speed sensor issues can disrupt the cruise control's functionality, as the system relies on accurate speed readings to maintain the desired speed. A blown fuse can also be a simple yet effective reason for cruise control failure, necessitating a quick fuse replacement to restore operation. Furthermore, if the throttle actuator is malfunctioning, it may prevent the cruise control from maintaining the set speed, leading to erratic performance. Lastly, problems with the Electronic Control Module (ECM) can significantly impact the cruise control system, as this module oversees various vehicle functions. By identifying these potential issues, DIY enthusiasts can effectively diagnose and address cruise control problems in their Honda Civic.

How urgent is it to address the malfunctioning cruise control in a 2021 Honda Civic?

When it comes to a malfunctioning cruise control system in a 2021 Honda Civic, the urgency to address the issue cannot be overstated. A faulty cruise control can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. This unpredictability not only compromises your safety but also that of other drivers and pedestrians. Moreover, neglecting this issue can exacerbate the problem, potentially leading to more extensive and costly repairs down the line. By addressing the malfunction promptly, you not only ensure the vehicle's systems operate correctly but also enhance your overall driving experience. A well-functioning cruise control contributes to driving comfort, allowing for a smoother ride, especially on long journeys. Therefore, it is crucial to seek professional assistance as soon as you notice any irregularities in your cruise control system to maintain optimal vehicle performance and safety.

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2021 Honda Civic Cruise Control Issues & Repair Guide