2006 Chevrolet Trailblazer Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Chevrolet Trailblazer 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 Chevrolet Trailblazer 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 Chevrolet Trailblazer 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-functional cruise control in a 2006 Chevrolet Trailblazer?

When troubleshooting the non-functional cruise control in a 2006 Chevrolet Trailblazer, it's essential to adopt a systematic diagnostic approach. Start by checking the fuse associated with the cruise control system, as a blown fuse can easily disrupt its operation. Next, verify the functionality of the cruise control switch located on the steering wheel; if this switch is faulty, it may prevent the system from engaging. Additionally, inspect the brake lights to ensure they are working correctly, since a malfunctioning brake light switch can disable the cruise control as a safety precaution. The vehicle speed sensor is another critical component to examine, as it provides necessary data for the cruise control to function properly. Finally, if the previous steps do not reveal the issue, consider using a diagnostic scanner to check for any error codes that may indicate underlying problems. By following these steps, you can effectively identify and address the root cause of the cruise control malfunction in your Trailblazer.

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

When dealing with a malfunctioning cruise control system in a 2006 Chevrolet Trailblazer, it's essential to understand the common issues that may be at play. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since the system is designed to disengage when the brake pedal is pressed. Additionally, a defective speed sensor can disrupt the system's ability to maintain a steady speed, leading to erratic performance. Another potential issue is a blown fuse within the cruise control circuit, which can completely disable the system. Furthermore, vacuum leaks in the engine can affect the cruise control's functionality, as these leaks can interfere with the necessary pressure for operation. Lastly, a malfunctioning cruise control module itself may be the reason for the failure. For those looking to troubleshoot these issues, it's advisable to start with the simplest checks, such as inspecting fuses and switches, before moving on to more complex components like sensors and modules.

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

When it comes to a non-functioning cruise control in a 2006 Chevrolet Trailblazer, the urgency of addressing the issue cannot be overstated. A malfunctioning cruise control system can significantly compromise safety, especially during long drives on highways where this feature is most beneficial. Ignoring the problem may lead to increased driver fatigue, as the driver has to maintain constant speed manually, which can be exhausting over time. Moreover, a faulty cruise control could indicate deeper mechanical or electrical issues within the vehicle, which, if left unchecked, could escalate into more severe and costly repairs. Additionally, maintaining all vehicle features, including cruise control, is crucial for preserving resale value; potential buyers are likely to be deterred by a vehicle with non-functional systems. Therefore, while it may not seem like an immediate emergency, addressing the non-functioning cruise control promptly is essential for ensuring safety, enhancing comfort, preventing further damage, and maintaining the vehicle's overall value.

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2006 Chevrolet Trailblazer Cruise Control Issues & Solutions