2017 Mercedes-Benz GLE400 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2017 Mercedes-Benz GLE400

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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 2017 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 2017 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 take when the cruise control isn't working on a 2017 Mercedes-Benz GLE400?

When faced with a malfunctioning cruise control system in your 2017 Mercedes-Benz GLE400, it's essential to adopt a methodical diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on the steering wheel; if they are unresponsive, they may need replacement. Following this, verify the speed sensors, which are crucial for relaying the vehicle's speed to the cruise control system; any faults here can lead to operational issues. Utilizing a diagnostic scanner to check for error codes can provide insights into specific problems affecting the cruise control. Additionally, ensure that your brake lights are functioning correctly, as a faulty brake light switch can inadvertently disable the cruise control. Finally, inspect the wiring connections associated with the cruise control system for any loose or damaged wires that could hinder performance. By systematically addressing these areas, you can effectively diagnose and potentially resolve the cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2017 Mercedes-Benz GLE400?

When the cruise control in your 2017 Mercedes-Benz GLE400 stops functioning, it can be frustrating, but understanding the common problems can help you diagnose the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge your vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another common issue is related to the brake light switch; if this switch is defective, it can cause the cruise control to disengage unexpectedly whenever the brake pedal is pressed, even if you haven't turned it off. Additionally, a malfunctioning throttle actuator can disrupt communication between the cruise control system and the engine, preventing it from maintaining a set speed. It's also important to consider the cruise control module itself; if this component is defective, it may not process the necessary signals for the system to operate correctly. Lastly, electrical problems such as wiring issues or blown fuses can lead to a complete failure of the cruise control system. By identifying these potential issues, you can take the first steps toward troubleshooting and possibly restoring the functionality of your cruise control.

How urgent is it to address the malfunctioning cruise control in my 2017 Mercedes-Benz GLE400?

Addressing the malfunctioning cruise control in your 2017 Mercedes-Benz GLE400 is crucial for several reasons. First and foremost, safety should be your top priority; a malfunctioning system can lead to erratic vehicle behavior, such as unexpected acceleration or deceleration, which significantly increases the risk of accidents. Additionally, a properly functioning cruise control system enhances driving comfort, especially during long journeys, allowing for a more relaxed driving experience. Furthermore, timely repairs can help maintain your vehicle's overall performance and fuel efficiency, preventing unnecessary strain on the engine and other components. Ignoring these issues not only compromises your safety and comfort but can also lead to more extensive and costly repairs down the line. Therefore, it is essential to address any cruise control malfunctions promptly to ensure a safe and enjoyable driving experience.

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