2006 Pontiac Montana Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Pontiac Montana 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2006 Pontiac Montana 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 Montana 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 initial steps to diagnose the non-functioning cruise control in a 2006 Pontiac Montana?

When diagnosing the non-functioning cruise control in a 2006 Pontiac Montana, it's crucial to adopt a systematic approach that starts with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can often be the culprit behind the system's failure. Next, examine the cruise control switch located on the steering wheel; ensure it is not stuck or damaged, as this can prevent the system from engaging. The brake pedal switch is another critical component to check, as it disengages the cruise control when the brake is applied; a malfunction here can lead to the system not functioning correctly. Utilizing a diagnostic scanner to look for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Finally, inspect the vacuum lines connected to the cruise control system for any signs of leaks or damage, as these can significantly impact performance. By following these steps, you can effectively narrow down the potential causes of the cruise control malfunction and take the necessary actions to restore its functionality.

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

When troubleshooting the cruise control system in a 2006 Pontiac Montana, it's essential to consider several common issues that could be at play. One of the first components to check is the brake pedal switch, as a faulty switch can prevent the cruise control from engaging, since it is designed to deactivate when the brake is pressed. Additionally, the speed sensor plays a crucial role in maintaining a constant speed; if it is defective, the cruise control may fail to function properly. Another area to inspect is the fuse associated with the cruise control system; a blown fuse can completely disable the system. Furthermore, vacuum leaks in the engine can disrupt the necessary vacuum pressure for the cruise control to operate effectively. Lastly, the cruise control module itself may be malfunctioning, which can lead to issues with engagement and speed maintenance. By systematically checking these components, DIYers can identify and potentially resolve the cruise control problems in their Pontiac Montana.

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

When it comes to the non-functioning cruise control in a 2006 Pontiac Montana, understanding the urgency of the situation is crucial for any DIY enthusiast. While this issue may not pose an immediate threat to the vehicle's drivability, it can significantly impact the comfort and convenience of long drives. Ignoring the malfunction could lead to increased driver fatigue, especially during extended highway trips where maintaining a steady speed is beneficial. Moreover, while the cruise control system itself may not directly affect critical safety components like brakes or steering, a malfunctioning system can lead to distractions that detract from the driver's focus on the road. Therefore, addressing the cruise control issue promptly not only enhances the overall driving experience but also contributes to safer driving conditions. Taking the time to diagnose and repair this feature can prevent minor inconveniences from escalating into more significant frustrations down the line, making it a worthwhile endeavor for any Pontiac Montana owner.

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