2015 Volkswagen Jetta Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Volkswagen Jetta and How to Fix Them

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Reviewed by
Bo Fader
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 2015 Volkswagen Jetta 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 2015 Volkswagen Jetta 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.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2015 Volkswagen Jetta?

When troubleshooting the non-functioning cruise control in a 2015 Volkswagen Jetta, it's crucial to follow a structured diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse can easily disrupt the system's operation. Next, check the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, which could hinder their functionality. It's also important to examine the vehicle's speed sensors, as they are vital for the cruise control system to operate correctly; any malfunction here could be a significant contributor to the problem. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately apparent. Additionally, verify that the brake lights are functioning properly, since a malfunctioning brake light switch can inadvertently cause the cruise control to disengage. Finally, inspect the vacuum lines connected to the cruise control system for any leaks or damage, as these can severely affect performance. By systematically addressing these areas, you can effectively diagnose and potentially resolve the cruise control issue in your Jetta, ensuring a smoother driving experience.

What are the common problems that could cause the cruise control to stop working in a 2015 Volkswagen Jetta?

When troubleshooting cruise control issues in a 2015 Volkswagen Jetta, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to failure. It's also worth checking for blown fuses related to the cruise control system, as this can completely disable its functionality. Another potential issue is a malfunctioning throttle actuator, which is crucial for maintaining speed. Lastly, vacuum leaks in the system can hinder the cruise control's operation. If you encounter problems with your cruise control, consider these common issues as a starting point for your DIY diagnosis, but remember that consulting a qualified mechanic may be necessary for a thorough inspection and repair.

How urgent is it to address the malfunctioning cruise control in a 2015 Volkswagen Jetta?

When it comes to a malfunctioning cruise control system in a 2015 Volkswagen Jetta, the urgency to address the issue cannot be overstated. A malfunctioning cruise control can lead to unexpected acceleration or deceleration, creating a significant safety hazard on the road. This unpredictability not only increases the risk of accidents but can also endanger the lives of both the driver and other road users. Moreover, neglecting to fix the cruise control system can result in further complications, potentially leading to more extensive and costly repairs down the line. Therefore, it is crucial for DIY enthusiasts to recognize the importance of promptly inspecting and repairing the cruise control system. Taking immediate action not only ensures the safety of the vehicle but also helps maintain the overall integrity of the car's systems, preventing future issues and expenses.

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