2015 Mercedes-Benz G63 AMG Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2015 Mercedes-Benz G63 AMG and How to Fix Them

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Reviewed by
Aisha
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 2015 Mercedes-Benz G63 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 2015 Mercedes-Benz G63 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 non-functioning cruise control in my 2015 Mercedes-Benz G63 AMG?

To effectively diagnose the non-functioning cruise control in your 2015 Mercedes-Benz G63 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can prevent engagement. Following this, verify the functionality of the speed sensors located on the wheels, since faulty sensors can disrupt the cruise control's ability to maintain speed. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning correctly, as these components are crucial for the cruise control system to operate safely. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion, as compromised wiring can lead to system failure. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2015 Mercedes-Benz G63 AMG?

When troubleshooting the cruise control system in a 2015 Mercedes-Benz G63 AMG, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, the brake light switch plays a crucial role; if it malfunctions, it may incorrectly signal the cruise control to deactivate when the brakes are applied, disrupting the system's operation. Another potential culprit is the throttle actuator, which is responsible for adjusting the throttle position; any issues here can significantly affect cruise control functionality. Furthermore, a defective cruise control module can render the entire system inoperative, necessitating repair or replacement. Lastly, electrical problems such as wiring faults or blown fuses can also impede the cruise control's performance. By identifying and addressing these common issues, DIY enthusiasts can effectively diagnose and potentially resolve cruise control problems in their G63 AMG.

How urgent is it to address the malfunctioning cruise control in a 2015 Mercedes-Benz G63 AMG?

Addressing a malfunctioning cruise control in a 2015 Mercedes-Benz G63 AMG is of utmost urgency due to the significant safety risks it poses. A malfunction can lead to unpredictable speed control, which may compromise the stability of the vehicle and increase the likelihood of accidents. Additionally, the cruise control feature is designed to enhance driving comfort, and neglecting its issues can detract from the overall driving experience, making long journeys less enjoyable. Furthermore, delaying repairs can result in more extensive damage to the vehicle's systems, leading to higher repair costs down the line. Therefore, it is crucial for owners to prioritize the resolution of cruise control malfunctions to ensure their safety, maintain driving comfort, and protect their investment in the vehicle.

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