2019 Mercedes-Benz GLE400 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Mercedes-Benz GLE400 and How to Fix Them

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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 2019 Mercedes-Benz GLE400 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 GLE400 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 2019 Mercedes-Benz GLE400?

When faced with a non-functioning cruise control in your 2019 Mercedes-Benz GLE400, start by checking the cruise control fuse, as a blown fuse can often be the simplest explanation for the malfunction. 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. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues that may not be immediately visible. Additionally, inspect the cruise control buttons on the steering wheel for any signs of physical damage or malfunction, as these can directly affect the system's operation. Finally, while driving, attempt to engage the cruise control to see if it responds; this practical test can help you determine if the issue lies within the system's functionality or if further investigation is needed. By following these steps, you can systematically 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 2019 Mercedes-Benz GLE400?

When the cruise control in your 2019 Mercedes-Benz GLE400 ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue 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. Additionally, issues with the brake light switch can disrupt the system, as it is designed to deactivate cruise control when the brakes are applied. Another potential problem lies with the throttle actuator; if it is not functioning correctly, it can hinder the cruise control's ability to maintain a constant speed. Electrical problems, such as blown fuses or wiring issues, can also lead to cruise control failure, as can vacuum leaks within the system that affect its pressure. By identifying these common issues, you can take the first steps toward troubleshooting and potentially fixing the cruise control system in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2019 Mercedes-Benz GLE400?

When it comes to a malfunctioning cruise control system in your 2019 Mercedes-Benz GLE400, the urgency to address the issue cannot be overstated. A faulty cruise control can compromise your driving experience, making it less convenient and potentially hazardous. Safety is paramount; a malfunction could lead to unintended acceleration or failure to maintain speed, increasing the risk of accidents. Additionally, neglecting this issue may result in higher fuel consumption and could cause strain on other vehicle components, leading to more extensive and costly repairs down the line. By addressing the problem promptly, you not only enhance your vehicle's performance but also ensure a safer driving environment for yourself and others on the road. If you're considering a DIY approach, it's crucial to diagnose the issue accurately and understand the potential risks involved, as timely intervention can prevent further complications and maintain the integrity of your vehicle.

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