GMC Acadia Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your GMC Acadia 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a GMC Acadia 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 GMC Acadia 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.

Troubleshooting Cruise Control Issues in a GMC Acadia

When troubleshooting cruise control issues in your GMC Acadia, begin by inspecting the throttle system, as throttle problems can significantly impact cruise control functionality. Next, check the sensors responsible for detecting speed and distance; ensure they are clean and unobstructed, as dirt or ice can lead to malfunctions. If these initial checks do not resolve the issue, examine the transmission control module for faults, as a malfunctioning module can disrupt the cruise control system. Additionally, inspect the electrical components related to cruise control for any signs of damage or disconnection. If the problem persists, consider reviewing the vehicle personalization settings, particularly the forward collision alert settings, as incorrect configurations can hinder adaptive cruise control performance. Lastly, if you encounter the "GMC Adaptive Cruise Control Temporarily Unavailable" message, it may indicate deeper software or mechanical issues that require professional diagnosis. By following this structured approach, you can systematically identify and address the common problems affecting your GMC Acadia's cruise control system.

What Could Cause the Cruise Control to Malfunction in a GMC Acadia?

When troubleshooting cruise control malfunctions in a GMC Acadia, it's essential to consider several common problems that could be affecting the system. A failed control module, sensor, or switch is often at the heart of the issue, as these components are crucial for the proper functioning of cruise control. Additionally, throttle actuation problems can disrupt the system, preventing it from maintaining speed. It's also important to check for a blown fuse or a defective brake pedal switch, as these can easily cause the cruise control to stop working altogether. In some cases, issues with the throttle control system or the anti-lock braking system (ABS) may be contributing factors. For older models, a broken vacuum line could be the culprit, while newer vehicles may experience problems due to improper installation of components near the radar sensor or a malfunctioning brake pedal switch affecting adaptive cruise control. By accurately diagnosing these potential issues, you can effectively address and resolve cruise control problems in your GMC Acadia.

Why is the Cruise Control Not Working in a GMC Acadia?

When the cruise control in your GMC Acadia malfunctions, it is crucial to address the issue without delay. Ignoring symptoms such as the sudden unavailability of adaptive cruise control or warning messages can lead to unsafe driving conditions, particularly if the system fails while on the road. Common causes, including faulty control modules, sensor issues, or throttle actuation problems, can escalate if not promptly diagnosed and repaired. Additionally, issues like a blown fuse or defective brake pedal switch may seem minor but can significantly impact your vehicle's performance and safety. By taking immediate action to investigate and resolve these problems, you not only enhance your driving experience but also prevent potential damage to your vehicle, ensuring that your GMC Acadia remains reliable and safe on the road.

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