2015 GMC Yukon XL Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 GMC Yukon XL 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 2015 GMC Yukon XL 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 GMC Yukon XL 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 2015 GMC Yukon XL?

When diagnosing a cruise control issue in a 2015 GMC Yukon XL, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, assess the functionality of the cruise control buttons on the steering wheel, ensuring they are not stuck or damaged, which could hinder engagement. Utilizing a diagnostic scanner to retrieve any error codes from the vehicle's onboard computer can provide insights into potential issues. It's also important to examine the speed sensors, as they play a vital role in the cruise control system's functionality. Testing the brake pedal switch is essential, as a faulty switch can inadvertently disable the cruise control feature. Lastly, inspect the wiring connections for any signs of damage or loose connections that may affect the system's performance. By systematically following these steps, you can effectively diagnose and potentially resolve cruise control issues in your GMC Yukon XL, ensuring a smoother driving experience.

What are the common problems that could cause the cruise control to stop working in a 2015 GMC Yukon XL?

When troubleshooting the cruise control system in a 2015 GMC Yukon XL, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the vehicle's ability to maintain a constant speed, leading to cruise control problems. Another potential issue is a blown fuse within the cruise control system, which can completely disable its functionality. Furthermore, a defective cruise control module may hinder communication between the system and the vehicle, resulting in operational failures. Lastly, vacuum leaks in the engine can also impact the cruise control's performance. By identifying and addressing these common issues, you can effectively diagnose and resolve the cruise control problems in your GMC Yukon XL, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in my 2015 GMC Yukon XL?

When it comes to the malfunctioning cruise control in your 2015 GMC Yukon XL, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses a significant safety risk not only to you but also to other road users. Ignoring these symptoms may result in dangerous driving conditions and could potentially lead to accidents. Furthermore, delaying repairs can exacerbate the problem, leading to additional wear and tear on your vehicle's components, which may result in more extensive and costly repairs down the line. Therefore, it is crucial to have your cruise control system inspected and repaired by a qualified mechanic as soon as possible to ensure your vehicle operates safely and efficiently. Taking prompt action not only safeguards your safety but also helps maintain the overall health of your vehicle.

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