2019 Mercedes-Benz GLC63 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in 2019 Mercedes-Benz GLC63 AMG

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Reviewed by
Andrew Hajjar
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 2019 Mercedes-Benz GLC63 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 2019 Mercedes-Benz GLC63 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.

What steps should I take to diagnose the cruise control issue in my 2019 Mercedes-Benz GLC63 AMG?

When diagnosing the cruise control issue in your 2019 Mercedes-Benz GLC63 AMG, it's crucial to follow a methodical diagnostic approach that prioritizes simpler checks before delving into more complex solutions. Begin by inspecting the cruise control fuse, as a blown fuse is a common and easily rectifiable problem that can disrupt the system's functionality. Next, assess the cruise control buttons on the steering wheel to ensure they are responsive, since malfunctioning buttons can lead to operational failures. Utilizing a diagnostic scanner to retrieve any error codes from the vehicle's computer can provide valuable insights into the underlying issues affecting the cruise control system. Additionally, check the speed sensors, as they are vital for the proper functioning of cruise control; any faults here can significantly impact performance. It's also important to examine the wiring connections for signs of damage or corrosion, which can hinder the system's operation. Finally, test the cruise control module to ensure it is functioning correctly. If these initial steps do not resolve the issue, seeking assistance from a professional mechanic or an authorized Mercedes-Benz service center is recommended for a thorough diagnosis and repair. By adhering to this structured approach, you can effectively troubleshoot and potentially resolve the cruise control problem in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2019 Mercedes-Benz GLC63 AMG?

When troubleshooting cruise control issues in a 2019 Mercedes-Benz GLC63 AMG, it's essential to understand the common problems that may be at play. A faulty speed sensor is often the primary culprit, as it can hinder the system's ability to accurately gauge the vehicle's speed, preventing proper engagement. Additionally, issues with the brake light switch can disrupt the cruise control's functionality; since the system is designed to disengage when the brake is applied, a malfunctioning switch may lead to unexpected disengagement or failure to activate. Another potential issue lies with the throttle actuator, which is responsible for maintaining a steady speed; if this component is malfunctioning, it can result in erratic speed control. Electrical problems, such as blown fuses or wiring faults, can also impede the cruise control system, making it crucial to inspect these components. Lastly, software glitches within the vehicle's control module may cause the cruise control to misbehave, and updating or resetting the system could resolve these issues. By systematically addressing these common problems, owners can effectively troubleshoot and restore their cruise control functionality.

How urgent is it to repair the non-functioning cruise control on a 2019 Mercedes-Benz GLC63 AMG?

When evaluating the urgency of repairing the non-functioning cruise control on a 2019 Mercedes-Benz GLC63 AMG, it is essential to recognize the implications of delaying this repair. While it may not seem like an immediate emergency, neglecting the issue can lead to increased driver fatigue and distraction, particularly during long drives where maintaining a consistent speed is crucial for safety. Additionally, the absence of cruise control diminishes the overall driving experience, making long trips less comfortable and potentially more stressful. Furthermore, from a financial perspective, a malfunctioning cruise control system could negatively affect the vehicle's resale value, as prospective buyers may view it as a significant drawback. Therefore, addressing this issue promptly not only enhances safety and comfort but also helps preserve the vehicle's market appeal, making it a wise decision for any owner.

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