2011 Hyundai Sonata Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2011 Hyundai Sonata 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 2011 Hyundai Sonata 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 2011 Hyundai Sonata 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.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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 are the steps to diagnose the cruise control issue in a 2011 Hyundai Sonata?

When diagnosing a cruise control issue in a 2011 Hyundai Sonata, it's essential to adopt a systematic approach that begins with the most straightforward checks before delving into more complex diagnostics. Start by ensuring that the cruise control system is activated and that the vehicle is traveling at a speed conducive to engagement, typically above 40 mph. Next, verify the functionality of the dashboard indicators; the cruise control light should illuminate when the system is turned on. If the "Set" button fails to engage the cruise control, it may indicate a problem with the cruise control switch itself. Utilizing an OBD-II scan tool can help identify any fault codes that may provide insight into the issue. If no codes are present, inspect the cruise control switch connectors, ensuring they are clean and securely connected. Pay particular attention to the clock spring, as it can cause intermittent issues if faulty. Additionally, check the brake pedal switch, as a malfunction here can prevent the cruise control from functioning properly. Lastly, consider the throttle actuation and sensors, as these components can also impact the cruise control system. By following this diagnostic approach, you can effectively troubleshoot and potentially resolve the cruise control issue in your Sonata. If problems persist, seeking professional assistance may be necessary for a thorough evaluation.

What are the common problems that could cause the cruise control to stop working in a 2011 Hyundai Sonata?

When troubleshooting cruise control issues in a 2011 Hyundai Sonata, it's essential to understand the common problems that may arise. One of the first things to check is the fuse associated with the cruise control system, as a blown fuse can prevent it from functioning altogether. Additionally, the brake pedal switch plays a critical role; if it fails, the system may incorrectly interpret that the brakes are engaged, thus disabling cruise control. The speed sensor is another vital component, as it relays speed data necessary for the system's operation; a malfunction here can lead to both cruise control failure and speedometer inaccuracies. While less common in newer models, issues with the vacuum actuator, hoses, or cables can still occur, particularly if the vehicle has been modified or is older. Furthermore, the cruise control switch on the steering wheel can wear out over time, leading to intermittent issues. Lastly, ensure that all connections related to the cruise control system are secure and free from corrosion, as these can also disrupt functionality. By systematically checking these components, you can effectively diagnose and potentially resolve the cruise control problems in your Sonata.

How urgent is it to address the malfunctioning cruise control in a 2011 Hyundai Sonata?

While a malfunctioning cruise control in a 2011 Hyundai Sonata may not seem urgent, it is crucial to recognize the potential consequences of neglecting this issue. The convenience of cruise control significantly enhances driving comfort, especially during long trips, and its failure can lead to increased driver fatigue. More importantly, a malfunctioning system may signal underlying problems, such as a faulty brake pedal switch or issues with the speed sensor, which could compromise both safety and vehicle performance. Ignoring these symptoms can escalate into more severe mechanical or electrical failures, potentially affecting critical systems like braking and engine operation. Therefore, while the immediate risk may appear low, addressing the malfunction promptly is essential to maintain the overall health of your vehicle and ensure safe driving conditions. Consulting a mechanic for a thorough inspection can help identify and resolve any underlying issues before they lead to more significant problems.

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