2006 Saturn Relay Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Saturn Relay 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 Saturn Relay 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 Saturn Relay 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 Saturn Relay?

To effectively diagnose the non-functioning cruise control in your 2006 Saturn Relay, start with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse; a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control switch located on the steering wheel to ensure it is operational, as a malfunctioning switch can prevent activation. It's also crucial to verify that your brake lights are functioning correctly, since a faulty brake light switch can inadvertently disable the cruise control. Following this, check the vehicle's speed sensors to confirm they are working properly and relaying accurate speed information to the cruise control module. Finally, utilize an onboard diagnostic scanner to check for any error codes that may indicate specific issues within the cruise control system. By following this structured approach, you can systematically identify and address the problem, making your DIY troubleshooting more efficient and effective.

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

When troubleshooting cruise control issues in a 2006 Saturn Relay, it's essential to consider several common problems that could be at play. A faulty cruise control switch is often the first suspect, as it can hinder the system's ability to engage or disengage properly. Additionally, a blown fuse within the cruise control circuit can disrupt functionality, making it crucial to check the fuse box for any blown fuses. Another critical component is the speed sensor; if it malfunctions, the cruise control may struggle to maintain a consistent speed. Vacuum leaks can also significantly impact performance, as they can prevent the system from operating effectively. Furthermore, issues with the brake light switch can lead to unexpected disengagement of the cruise control, while a malfunctioning throttle cable can interfere with the system's operation. By systematically examining these components, DIYers can effectively diagnose and resolve cruise control problems in their Saturn Relay.

How urgent is it to repair the non-functioning cruise control in a 2006 Saturn Relay?

When evaluating the urgency of repairing the non-functioning cruise control in a 2006 Saturn Relay, it is essential to recognize the potential risks associated with ignoring this issue. A malfunctioning cruise control system can compromise safety, especially during long drives where driver fatigue is a concern. Without the ability to maintain a steady speed, drivers may find themselves more prone to distractions and fatigue, increasing the likelihood of accidents. Additionally, the convenience that cruise control offers during highway travel cannot be overlooked; it significantly enhances comfort and reduces the physical strain of driving for extended periods. Furthermore, from a financial perspective, addressing the cruise control issue can positively impact the vehicle's resale value. Prospective buyers are often wary of vehicles with known mechanical problems, and ensuring that all systems, including cruise control, are functioning properly can make the vehicle more appealing. Therefore, while the repair may not seem immediately critical, timely action is advisable to safeguard safety, enhance driving comfort, and preserve the vehicle's market value.

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2006 Saturn Relay Cruise Control Not Working | RepairPal