2020 Mercedes-Benz AMG GT 63 Cruise Control Isn't Working

Fixing Cruise Control Malfunctions in 2020 Mercedes-Benz AMG GT 63

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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 2020 Mercedes-Benz AMG GT 63 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 2020 Mercedes-Benz AMG GT 63 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 are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2020 Mercedes-Benz AMG GT 63?

When faced with a non-functioning cruise control in your 2020 Mercedes-Benz AMG GT 63, start your troubleshooting process with a systematic approach. Begin by checking the cruise control fuse; a blown or damaged fuse can often be the simplest explanation for the issue. Next, ensure that the cruise control settings are correctly configured according to your vehicle's manual, as incorrect settings can prevent the system from engaging. If the settings are correct, use a diagnostic scanner to check for any error codes that may indicate underlying problems within the cruise control system. Additionally, inspect the cruise control buttons on the steering wheel for any signs of damage or malfunction, as stuck or broken buttons can hinder functionality. Finally, while driving, attempt to engage the cruise control to see if it responds; this practical test can help identify whether the issue lies in the system's activation. By following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2020 Mercedes-Benz AMG GT 63?

When troubleshooting the cruise control system in a 2020 Mercedes-Benz AMG GT 63, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can pose significant challenges, as this switch is crucial for disengaging the cruise control when the brake pedal is pressed; a malfunction here can lead to erratic behavior of the system. Another potential culprit is the throttle actuator, which regulates the engine's throttle opening; if it fails, the cruise control may struggle to maintain speed effectively. Furthermore, a defective cruise control module can hinder communication between various system components, resulting in a complete failure of the cruise control function. Lastly, electrical issues, such as blown fuses or wiring problems, can also impact the system's operation. By identifying and addressing these common problems, you can restore the functionality of your cruise control system, ensuring a smoother driving experience.

How urgent is it to repair the non-functioning cruise control in a 2020 Mercedes-Benz AMG GT 63?

When evaluating the urgency of repairing the non-functioning cruise control in your 2020 Mercedes-Benz AMG GT 63, it is crucial to recognize the potential risks associated with its neglect. A malfunctioning cruise control system can compromise safety by leading to erratic speed changes, which may result in dangerous driving conditions. Additionally, the absence of this feature can detract from the overall driving experience, especially during long journeys where maintaining a steady speed is essential for comfort. Furthermore, issues with the cruise control may signal deeper electronic system problems that, if left unaddressed, could escalate into more significant mechanical failures. Therefore, while it may not seem as pressing as other mechanical repairs, timely attention to the cruise control system is vital for ensuring your vehicle's safety, enhancing driving comfort, and preserving its performance integrity.

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