2006 GMC Yukon Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 GMC Yukon and How to Fix Them

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Reviewed by
Aisha
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 2006 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 2006 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.

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.

What are the steps to diagnose the cruise control issue in a 2006 GMC Yukon?

To diagnose the cruise control issue in your 2006 GMC Yukon, start by inspecting the control components, such as the cruise control lever and buttons, as these are often the simplest culprits when the system fails to engage. If the cruise control light on the steering wheel activates but the system does not respond when you press the set button, this may indicate a malfunction in these components. Next, check if the check engine light is illuminated, as this could be a significant factor affecting the cruise control's functionality. Utilizing an OBD2 scan tool can help you identify any underlying issues that may be triggering the check engine light. Additionally, verify that the cruise control switch is receiving power from the body control module (BCM) and that the signals are being processed correctly. If you do not have access to a scan tool, you can still perform a basic check on the switch to see if it powers on but fails to set or resume, which can help pinpoint whether the switch itself is faulty. By following this structured approach, you can effectively troubleshoot and potentially resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2006 GMC Yukon?

When troubleshooting the cruise control system in a 2006 GMC Yukon, it's essential to consider several common problems that could be at play. One of the primary issues is a faulty brake light switch, which is crucial for the cruise control's operation; if this switch fails, it may prevent the system from engaging, as it is designed to deactivate when the brake pedal is pressed. Additionally, a blown fuse in the vehicle's fuse box can disrupt the electrical flow necessary for the cruise control to function, leading to a complete shutdown of the system. Another potential culprit is a defective speed sensor, which is responsible for relaying the vehicle's speed to the cruise control module; if this sensor is malfunctioning, it can hinder the system's ability to maintain a steady speed. Furthermore, vacuum leaks in the engine can also impact the cruise control's performance, causing it to disengage unexpectedly or fail to operate altogether. Lastly, a malfunctioning cruise control module itself can be a significant factor in the system's failure. By systematically checking these components, you can identify and resolve the issues affecting your cruise control, restoring it to proper working order.

How urgent is it to address the malfunctioning cruise control in my 2006 GMC Yukon?

When it comes to your 2006 GMC Yukon, addressing a malfunctioning cruise control system is not just a matter of convenience; it is a critical safety concern that requires immediate attention. A malfunctioning cruise control can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which can significantly increase the risk of accidents on the road. Additionally, neglecting this issue can result in decreased fuel efficiency, causing you to spend more on gas while also putting unnecessary strain on your vehicle's components. Over time, these problems can escalate, leading to more severe damage and costly repairs that could have been avoided with prompt action. Regular maintenance and quick resolution of any cruise control issues are essential for ensuring the reliability and longevity of your vehicle. Therefore, if you notice any signs of malfunction, it is crucial to address them as soon as possible to maintain both your safety and the overall health of your GMC Yukon.

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