2014 GMC Sierra 1500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2014 GMC Sierra 1500 and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2014 GMC Sierra 1500 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 2014 GMC Sierra 1500 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 initial diagnostic steps to troubleshoot the non-functional cruise control in a 2014 GMC Sierra 1500?

When troubleshooting the non-functional cruise control in a 2014 GMC Sierra 1500, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the cruise control system, as a blown fuse can often be the simplest explanation for the malfunction. Next, inspect the wiring for any visible damage or loose connections, which can disrupt the electrical flow necessary for the system to operate. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately apparent. Additionally, testing the cruise control switch for proper functionality is crucial, as a faulty switch can prevent the system from engaging. Don’t forget to verify that the brake lights are functioning correctly, since a malfunctioning brake light switch can inadvertently disable the cruise control. Finally, assess the throttle position sensor to ensure it is sending accurate signals to the cruise control module. By following these steps in order, you can effectively diagnose and address the issues affecting your cruise control system, empowering you to make informed repairs.

What are the common problems that could cause the cruise control to stop working in a 2014 GMC Sierra 1500?

When troubleshooting the cruise control system in a 2014 GMC Sierra 1500, it's essential to consider several common problems that may be at play. One of the first areas to check is the brake light switch, as a faulty switch can prevent the cruise control from engaging, since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the vehicle's speed sensor can disrupt the system's ability to maintain a set speed, leading to cruise control failure. It's also wise to inspect the fuses related to the cruise control system, as a blown fuse can completely disable its functionality. Another potential culprit is a defective cruise control module, which can hinder the system's operation. Lastly, be aware of any vacuum leaks in the engine, as these can significantly impact the cruise control's performance. By systematically examining these areas, DIYers can often identify and resolve the issues affecting their cruise control system.

How urgent is it to address the malfunctioning cruise control in my 2014 GMC Sierra 1500?

When it comes to your 2014 GMC Sierra 1500, addressing a malfunctioning cruise control system should be treated with urgency. Ignoring this issue can lead to significant safety risks, especially during long drives where maintaining a steady speed is crucial. A malfunctioning cruise control can not only diminish your driving experience but also increase the likelihood of accidents due to unexpected speed fluctuations. Common culprits behind these malfunctions include failed control modules, faulty sensors, and issues with throttle actuation, which can all impact the vehicle's performance. If the throttle position sensor is compromised, it can disrupt the engine's computer, exacerbating the problem. Therefore, it is essential to diagnose and repair cruise control issues promptly to ensure your vehicle operates safely and efficiently. By taking action sooner rather than later, you can avoid potential inconveniences and ensure a more comfortable driving experience.

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2014 GMC Sierra 1500 Cruise Control Issues & Repair Costs