2018 GMC Yukon Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 GMC Yukon 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2018 GMC Yukon 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 2018 GMC Yukon 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 are the steps to diagnose the cruise control issue in a 2018 GMC Yukon?

To effectively diagnose a cruise control issue in your 2018 GMC Yukon, begin with the simplest solutions. Start by checking the cruise control fuse to ensure it is intact, as a blown fuse can easily disrupt the system. Next, inspect the cruise control buttons on the steering wheel for any signs of damage or malfunction, as these controls are essential for operation. If these initial checks do not reveal the problem, utilize a diagnostic scanner to identify any error codes that may provide insight into the issue. Following this, test the cruise control module to confirm it is functioning correctly, as it is responsible for sending and receiving signals. Additionally, examine the vehicle speed sensor, which is crucial for the cruise control system's performance. Finally, inspect all related wiring and connections for any damage or corrosion that could affect functionality. If you still encounter issues after these steps, it may be wise to consult a professional mechanic for further assistance. This methodical approach not only helps in identifying the problem but also empowers you to tackle the issue with confidence.

What are the common problems that could cause the cruise control to stop working in a 2018 GMC Yukon?

When troubleshooting cruise control issues in a 2018 GMC Yukon, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, issues with the speed sensor can disrupt the vehicle's ability to maintain a constant speed, leading to cruise control failure. Another potential problem is a blown fuse within the cruise control system, which can easily be checked and replaced if necessary. If these components are functioning correctly, the cruise control module itself may be faulty and require repair or replacement. Furthermore, throttle control malfunctions can hinder the system's performance, as can electrical problems stemming from damaged or loose wiring connections. By systematically addressing these common issues, you can effectively troubleshoot and potentially restore the cruise control functionality in your GMC Yukon.

How urgent is it to address the non-functioning cruise control in a 2018 GMC Yukon?

When it comes to the non-functioning cruise control in your 2018 GMC Yukon, understanding the urgency of the situation is crucial for both safety and vehicle performance. While a malfunctioning cruise control system may not present an immediate danger like failing brakes or steering, it is still important to address the issue promptly. Ignoring this problem can lead to increased driver fatigue during long trips, as the convenience of maintaining a steady speed is lost. Additionally, a delay in repairs could potentially escalate into more significant electrical issues within the vehicle, affecting other systems and leading to costly repairs down the line. Therefore, while the urgency may not be as high as with critical safety components, taking timely action to fix the cruise control will help ensure a smoother, safer driving experience and maintain the overall functionality of your vehicle.

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Troubleshooting 2018 GMC Yukon Cruise Control Problems