2009 Pontiac G3 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 Pontiac G3 and How to Fix Them

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Reviewed by
Devin Cabugcal
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 G3 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 G3 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2009 Pontiac G3?

When faced with a non-functioning cruise control in your 2009 Pontiac G3, it's important to approach the diagnosis methodically, starting with the simplest solutions. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can prevent engagement. The speed sensor is another critical component; verify its functionality to ensure it accurately detects your vehicle's speed. Utilizing a diagnostic scanner can also be beneficial, as it allows you to check for any error codes that may indicate specific problems within the cruise control system. Additionally, examine the vacuum lines for any leaks or damage, as these can disrupt the system's operation. Finally, ensure that the brake and clutch switches are functioning properly, as these switches are designed to disengage the cruise control when activated. By following these steps, you can effectively troubleshoot and potentially resolve the issue with your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2009 Pontiac G3?

When troubleshooting the cruise control system in a 2009 Pontiac G3, it's essential to consider several common problems that could be causing the malfunction. One of the primary issues is a faulty brake pedal switch, which is crucial for the cruise control's operation as it disengages the system when the brake is applied. Additionally, a blown fuse in the vehicle's fuse box can interrupt the electrical flow necessary for the cruise control to function. Another potential culprit is a malfunctioning speed sensor, which is responsible for relaying the vehicle's speed to the cruise control system; if this sensor fails, the system may struggle to maintain a set speed. Furthermore, vacuum leaks in the engine can significantly impact the cruise control's performance, as the system relies on vacuum pressure to operate correctly. Lastly, a defective cruise control module can also lead to system failure. By systematically checking these components, DIY enthusiasts can effectively diagnose and resolve issues with the cruise control in their Pontiac G3.

How urgent is it to address the non-functioning cruise control in a 2009 Pontiac G3 to ensure safe driving?

Addressing the non-functioning cruise control in a 2009 Pontiac G3 is of utmost urgency due to the safety implications it presents. When cruise control fails, drivers may experience erratic speed changes, which can lead to dangerous situations, especially on highways where maintaining a consistent speed is crucial. The inability to rely on this feature not only increases driver fatigue but also heightens the risk of accidents, as sudden speed fluctuations can catch both the driver and other road users off guard. Moreover, neglecting this issue could lead to further mechanical problems, potentially resulting in costly repairs down the line. Therefore, it is essential to prioritize the repair of the cruise control system to ensure a safer driving experience and to prevent any unforeseen hazards on the road.

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2009 Pontiac G3 Cruise Control Issues & Repairs | RepairPal