2023 GMC Sierra 2500 HD Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2023 GMC Sierra 2500 HD

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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 2023 GMC Sierra 2500 HD 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 2023 GMC Sierra 2500 HD 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 steps to diagnose the non-functioning cruise control in a 2023 GMC Sierra 2500 HD?

When diagnosing the non-functioning cruise control in your 2023 GMC Sierra 2500 HD, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, inspect the cruise control buttons on the steering wheel to ensure they are responsive and not stuck, as malfunctioning buttons can prevent engagement. Following this, verify the speed sensors, which are critical for the cruise control system to function correctly; faulty sensors can disrupt the system's ability to maintain speed. Additionally, examine the brake pedal switch, as this component is vital for disengaging cruise control when the brakes are applied; a malfunction here can lead to operational issues. Finally, consider using a diagnostic scanner to check for any error codes that may provide insights into more complex problems within the cruise control system. By following these steps, you can effectively narrow down the potential causes of the issue and take appropriate action to restore functionality.

What are the common problems that could cause the cruise control to stop working in a 2023 GMC Sierra 2500 HD?

When the cruise control in your 2023 GMC Sierra 2500 HD stops functioning, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is a faulty cruise control switch, which may prevent the system from engaging or disengaging as intended. Additionally, a blown fuse in the vehicle's electrical system can disrupt the cruise control operation, so checking the fuses is a good first step. Another potential issue is a malfunctioning speed sensor, which is crucial for maintaining a constant speed; if this sensor fails, the cruise control may not work properly. Furthermore, a problematic brake light switch can cause the cruise control to disengage unexpectedly when the brakes are applied, leading to safety concerns. It's also important to consider the throttle actuator control system, as any issues here can hinder the cruise control's ability to maintain speed. Lastly, vacuum leaks in the system that controls the cruise control can result in malfunctions. By systematically checking these components, you can identify and resolve the issue, restoring your vehicle's cruise control functionality.

How urgent is it to address the non-functioning cruise control in a 2023 GMC Sierra 2500 HD?

When it comes to a non-functioning cruise control in your 2023 GMC Sierra 2500 HD, the urgency of addressing the issue cannot be overstated. A malfunctioning cruise control system poses significant safety risks, as it can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, particularly hazardous during highway driving. Moreover, the absence of this feature can detract from your driving comfort, making long trips more exhausting and less enjoyable. It's also crucial to recognize that a faulty cruise control may indicate deeper electrical or mechanical problems within your vehicle. By postponing repairs, you risk exacerbating these issues, potentially leading to more extensive and costly repairs in the future. Therefore, while it may not seem like an immediate emergency, prioritizing the diagnosis and repair of your cruise control system is essential for ensuring a safe and pleasant driving experience.

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2023 GMC Sierra 2500 HD Cruise Control Issues & Repairs