2006 Pontiac G6 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Pontiac G6 and How to Fix Them

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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 2006 Pontiac G6 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 Pontiac G6 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.

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 2006 Pontiac G6?

When diagnosing a cruise control issue in a 2006 Pontiac G6, it's essential to adopt a systematic approach that begins with the simplest potential problems. Start by checking the brake lights, as faulty lights can disrupt the cruise control system's functionality. Next, utilize an OBD-II scanner to retrieve any Diagnostic Trouble Codes (DTCs) that may indicate specific electronic malfunctions. It's also important to ensure that other vehicle systems, such as auto door locks and transmission shifting, are operating correctly, as these can sometimes be interconnected with the cruise control. Inspect the connectors located in the fuse panel on the front passenger side, and consider applying electrical grade dielectric grease to enhance connectivity. If these steps do not resolve the issue, you may need to replace the cruise control switch and verify that the brake lights are functioning properly post-replacement. By following this structured diagnostic approach, you can effectively identify and address the underlying causes of cruise control problems in your Pontiac G6.

What are the common problems that could cause the cruise control to stop working in a 2006 Pontiac G6?

When dealing with a malfunctioning cruise control system in a 2006 Pontiac G6, it's essential to understand the common issues that may be at play. 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 is defective, it can prevent the system from engaging properly. Another potential issue is a defective speed sensor; this component is vital for maintaining a constant speed, and if it fails, the cruise control will not function as intended. Additionally, a blown fuse in the vehicle's electrical system can disrupt the cruise control operation, so checking for any blown fuses is a good first step. Vacuum leaks can also affect the cruise control system, as they impact the vacuum-operated components that regulate speed. Lastly, a malfunctioning cruise control module may be the root cause, requiring either repair or replacement to restore functionality. By systematically checking these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your Pontiac G6.

How urgent is it to address the non-functioning cruise control in a 2006 Pontiac G6?

Addressing a non-functioning cruise control in a 2006 Pontiac G6 is important, even if it may not seem like an immediate emergency. While the absence of this feature does not directly compromise the vehicle's drivability or safety, it can significantly detract from the overall driving experience, especially during long trips where maintaining a constant speed is crucial for comfort and reducing fatigue. Ignoring the problem could lead to more serious underlying issues that may escalate over time, resulting in costly repairs. For DIY enthusiasts, it is advisable to start by checking the fuse and inspecting the cruise control switch for any visible damage. If these components appear functional, further investigation into the vehicle's wiring or the cruise control module may be necessary. Promptly addressing the cruise control issue not only enhances driving convenience but also helps ensure that your vehicle remains in optimal condition, preventing more significant problems down the road.

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