2017 Mercedes-Benz GLS63 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in 2017 Mercedes-Benz GLS63 AMG

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Reviewed by
Devin Cabugcal
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 2017 Mercedes-Benz GLS63 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 2017 Mercedes-Benz GLS63 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 steps should I take to diagnose the non-functioning cruise control in my 2017 Mercedes-Benz GLS63 AMG?

To effectively diagnose the non-functioning cruise control in your 2017 Mercedes-Benz GLS63 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on the steering wheel for any signs of sticking or malfunction, which could prevent proper operation. Following this, verify the speed sensor's performance, as it plays a crucial role in relaying speed data to the cruise control system. Utilizing a diagnostic scanner to check for error codes can provide insights into any underlying issues that may not be immediately visible. Additionally, ensure that the brake and clutch switches are functioning correctly, as these components are designed to disengage the cruise control when either pedal is pressed. Finally, inspect the wiring and connections associated with the cruise control system for any damage or loose connections that could be causing the problem. If these steps do not resolve the issue, consulting a professional mechanic or an authorized Mercedes-Benz service center is advisable for further assistance. This methodical approach not only helps in identifying the root cause but also empowers you to tackle the problem with confidence.

What are the common problems that could cause the cruise control to stop working in a 2017 Mercedes-Benz GLS63 AMG?

When the cruise control in your 2017 Mercedes-Benz GLS63 AMG ceases to function, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is a faulty speed sensor, which is crucial for the system to accurately gauge your vehicle's speed. If this sensor malfunctions, the cruise control may fail to engage or maintain the desired speed. Another frequent issue arises from the brake light switch; if this switch is defective, it may not send the correct signal to disengage the cruise control when the brake pedal is pressed, leading to operational failures. Additionally, problems with the throttle actuator can disrupt the system's ability to maintain a constant speed, as this component regulates the engine's throttle opening. A defective cruise control module itself can also be at fault, as it is essential for the system's overall functionality. Lastly, electrical issues such as wiring problems or blown fuses can prevent the cruise control from operating correctly. By identifying and addressing these common issues, you can restore the functionality of your cruise control system and enhance your driving experience.

How urgent is it to address the malfunctioning cruise control in a 2017 Mercedes-Benz GLS63 AMG?

When it comes to a malfunctioning cruise control system in a 2017 Mercedes-Benz GLS63 AMG, the urgency of addressing the issue cannot be overstated. A faulty cruise control can compromise the driver's ability to maintain a steady speed, which not only affects comfort during long drives but also poses significant safety risks on the road. If the system is malfunctioning, it may be indicative of deeper electronic issues or sensor failures that could disrupt other critical vehicle functions. Moreover, neglecting these symptoms can lead to decreased fuel efficiency, ultimately impacting your overall driving experience and increasing operational costs. By addressing the malfunction promptly, you not only enhance your safety but also prevent potential further damage to the vehicle, which could result in more expensive repairs down the line. Therefore, it is crucial to have the cruise control system diagnosed and repaired by a qualified mechanic as soon as possible to ensure the vehicle operates smoothly and safely.

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2017 Mercedes-Benz GLS63 AMG Cruise Control Issues