2014 Mercedes-Benz GL63 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2014 Mercedes-Benz GL63 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2014 Mercedes-Benz GL63 AMG cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 2014 Mercedes-Benz GL63 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 non-functioning cruise control in a 2014 Mercedes-Benz GL63 AMG?

To diagnose the non-functioning cruise control in your 2014 Mercedes-Benz GL63 AMG, start with the simplest components first. Begin by inspecting the brake pedal switch, as a malfunction here is a common culprit for cruise control issues. Next, check the control module and associated sensors, ensuring they are functioning correctly. Pay attention to the actuator under the hood, as its condition can significantly impact the system's performance. After these initial checks, test the cruise control engagement by manipulating the lever and observing the display for any error messages or indications of set speed. It’s also crucial to verify that the brake lights are operational, as any faults here can lead to unintended disengagement of the cruise control. Don’t forget to check for blown fuses that might disrupt the system's operation. Finally, inspect the speed sensor and speedometer, along with the vacuum lines and linkage, to rule out any additional issues. By following this structured approach, you can effectively diagnose and potentially resolve the cruise control malfunction in your vehicle.

How urgent is it to address the non-functioning cruise control in a 2014 Mercedes-Benz GL63 AMG?

When it comes to the non-functioning cruise control in a 2014 Mercedes-Benz GL63 AMG, the urgency of addressing this issue largely hinges on your personal driving habits and preferences. For those who frequently embark on long highway journeys, the absence of cruise control can significantly detract from driving comfort, making it a priority to restore this feature. However, it's important to note that a malfunctioning cruise control system does not pose an immediate safety risk, allowing some drivers to postpone repairs without dire consequences. Nevertheless, neglecting this issue for an extended period could lead to further complications or a more costly repair down the line. Therefore, if you find yourself relying on cruise control for a more enjoyable driving experience, it is advisable to address the malfunction in a timely manner to ensure your vehicle operates at its best and enhances your comfort on the road.

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2014 Mercedes-Benz GL63 AMG Cruise Control Issues & Fixes