2009 Pontiac G5 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 Pontiac G5 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2009 Pontiac G5 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 2009 Pontiac G5 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.

What are the initial steps to diagnose the non-functioning cruise control in a 2009 Pontiac G5?

To diagnose the non-functioning cruise control in a 2009 Pontiac G5, start with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse in the fuse box; a blown fuse can easily disrupt the system's operation. Next, examine the cruise control switch located on the steering wheel to ensure it is not damaged and is functioning correctly. The brake pedal switch is another critical component, as it disengages the cruise control when the brake is applied; make sure this switch is operational. If these initial checks do not reveal the problem, use a diagnostic scanner to look for any error codes that may indicate issues within the cruise control system. Lastly, inspect the vacuum lines for any leaks, as these can significantly affect the system's performance. By following these steps, you can systematically identify and address the issues affecting your cruise control.

What are the common problems that could cause the cruise control to stop working in a 2009 Pontiac G5?

When troubleshooting the cruise control system in a 2009 Pontiac G5, it's important to consider several common problems that could lead to its malfunction. One of the simplest issues to check is a blown fuse, which can easily disrupt the electrical flow necessary for the cruise control to operate. If the fuse is intact, you may need to investigate more complex electrical problems, such as defective switches or sensors, which can interfere with the system's functionality. Additionally, the vacuum actuator plays a crucial role in the operation of cruise control; if it fails or if there are damaged vacuum hoses, the system may not engage properly. It's also worth examining the cable that connects the actuator to other components, as any damage here can lead to operational issues. Furthermore, a faulty brake light or brake switch can inadvertently signal the cruise control to disengage, while engine-related problems, including a check engine light, can prevent the system from functioning altogether. By systematically diagnosing these potential issues, you can effectively identify the root cause of the cruise control failure and take the necessary steps to restore its functionality.

How urgent is it to address the non-functioning cruise control in a 2009 Pontiac G5?

When considering the urgency of fixing a non-functioning cruise control in a 2009 Pontiac G5, it's essential to recognize that while it may not present an immediate safety hazard, neglecting the issue can lead to more significant problems down the line. A malfunctioning cruise control system can detract from the driving experience, especially on long trips where maintaining a steady speed is crucial for comfort and fatigue reduction. Moreover, if left unaddressed, the underlying electrical issues that caused the cruise control to fail could escalate, potentially leading to more extensive and costly repairs. Therefore, while it may not be an emergency, it is advisable for DIY enthusiasts to investigate the problem sooner rather than later. This proactive approach not only ensures the vehicle's systems are functioning optimally but also helps prevent further complications that could arise from ignoring the issue. Taking the time to troubleshoot and repair the cruise control can enhance both the safety and enjoyment of driving your Pontiac G5.

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