2006 Mercedes-Benz G55 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Mercedes-Benz G55 AMG 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2006 Mercedes-Benz G55 AMG 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 Mercedes-Benz G55 AMG 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.

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.

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 steps to diagnose the cruise control issue in a 2006 Mercedes-Benz G55 AMG?

To effectively diagnose a cruise control issue in a 2006 Mercedes-Benz G55 AMG, it's essential to adopt a systematic approach that begins with the simplest potential problems before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse is a common and easily fixable issue that can disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can prevent the system from engaging. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues, allowing you to target specific problems. Additionally, verify the functionality of the vehicle's speed sensors, as they are critical for the cruise control system to operate correctly. It's also important to examine the wiring connections associated with the cruise control system for any signs of damage or corrosion, as poor connections can lead to malfunctions. Finally, testing the cruise control module itself will help determine if it is functioning properly, as a defective module can be the root cause of the issue. By following this structured diagnostic approach, you can efficiently identify and resolve cruise control problems in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2006 Mercedes-Benz G55 AMG?

When troubleshooting cruise control issues in a 2006 Mercedes-Benz G55 AMG, it's crucial to identify the common problems that could be at play. A primary concern is the control module, which, if failed, can completely disable the cruise control system. Additionally, throttle actuation problems may arise, preventing the system from maintaining the desired speed. Defective components or sensors are also frequent offenders, as they are essential for the cruise control's proper operation. Furthermore, a blown fuse or a faulty brake pedal switch can significantly affect functionality, as these elements are integral to the system's safety features. For those looking to tackle these issues themselves, a thorough inspection of these components is advisable. However, given the intricate nature of the cruise control system, seeking assistance from a qualified service team may be necessary to ensure a reliable and effective repair.

How urgent is it to address the non-functioning cruise control in a 2006 Mercedes-Benz G55 AMG?

Addressing a non-functioning cruise control in a 2006 Mercedes-Benz G55 AMG is more urgent than it may initially seem. While it might not appear to be an immediate emergency, the implications of ignoring this issue can lead to significant safety risks and potential damage to the vehicle's electronic systems. A malfunctioning cruise control can indicate deeper problems within the vehicle's electronics or sensors, which could affect other critical systems. For DIY enthusiasts, understanding the urgency of this repair is crucial; neglecting it could result in increased repair costs down the line or even compromise the vehicle's safety during long drives. Moreover, a properly functioning cruise control system enhances driving comfort and fuel efficiency, making it an essential feature for highway travel. Therefore, it is advisable to investigate and address any cruise control issues promptly, ensuring both the safety and optimal performance of your G55 AMG.

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2006 Mercedes-Benz G55 AMG Cruise Control Issues | RepairPal