2016 Mercedes-Benz G65 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in 2016 Mercedes-Benz G65 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 2016 Mercedes-Benz G65 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 2016 Mercedes-Benz G65 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 2016 Mercedes-Benz G65 AMG?

To effectively diagnose the non-functioning cruise control in your 2016 Mercedes-Benz G65 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse located in the fuse box; a blown fuse is a straightforward fix that can often resolve the issue. Next, examine the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent the system from engaging. Following this, verify the functionality of the speed sensors, as 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 within the cruise control system. 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 signs of damage or corrosion, as compromised wiring can lead to connectivity problems. By following this structured diagnostic approach, you can efficiently identify and address the root cause of your cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2016 Mercedes-Benz G65 AMG?

When troubleshooting the cruise control system in a 2016 Mercedes-Benz G65 AMG, it's essential to understand the common problems that may lead to its failure. One of the primary culprits 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 speed effectively. Additionally, issues with the brake light switch can pose significant problems; since the cruise control is designed to disengage when the brake pedal is pressed, a malfunctioning switch may fail to signal this action, resulting in the cruise control ceasing to function. Another potential issue is a malfunctioning throttle actuator, which is responsible for controlling the engine's throttle opening and can hinder the system's ability to maintain a steady speed. Furthermore, a defective cruise control module can also be a significant factor, as it may not communicate properly with other vehicle systems, leading to operational failures. Lastly, electrical problems such as wiring issues or blown fuses can disrupt the cruise control system, making it crucial to inspect all electrical components for faults. By identifying and addressing these common issues, you can effectively diagnose and repair the cruise control functionality in your vehicle.

How urgent is it to repair the non-functioning cruise control in a 2016 Mercedes-Benz G65 AMG?

Repairing the non-functioning cruise control in a 2016 Mercedes-Benz G65 AMG should be prioritized due to its significant impact on both safety and driving comfort. While it may not seem like an immediate emergency, the absence of cruise control can lead to increased driver fatigue, especially during long trips, as the driver must constantly monitor and adjust speed manually. This can distract from the road and elevate the risk of accidents. Furthermore, a malfunctioning cruise control system may signal deeper issues within the vehicle's electronics or engine control unit, which, if left unaddressed, could result in more severe damage and costly repairs down the line. Therefore, addressing the cruise control issue promptly not only enhances the driving experience but also safeguards the vehicle's overall performance and longevity.

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2016 Mercedes-Benz G65 AMG Cruise Control Issues & Repairs