2020 Mercedes-Benz GLE350 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2020 Mercedes-Benz GLE350

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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 2020 Mercedes-Benz GLE350 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 GLE350 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 steps to diagnose the cruise control issue in a 2020 Mercedes-Benz GLE350?

When diagnosing a cruise control issue in your 2020 Mercedes-Benz GLE350, it's essential to adopt a methodical approach that starts with the most straightforward solutions. 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 to ensure they are operational, as faulty buttons can lead to malfunctions. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues, allowing you to target specific problems effectively. Additionally, verify the functionality of the speed sensors, which are critical for the cruise control system's operation; any faults here can significantly impact performance. Finally, conduct a thorough inspection of the wiring and connections associated with the cruise control system, looking for signs of damage or corrosion that could hinder its operation. By following these initial steps, you can systematically identify and address the root cause of the cruise control issue, making your DIY troubleshooting more efficient and effective.

What are the common problems that could cause the cruise control to stop working in a 2020 Mercedes-Benz GLE350?

When the cruise control in your 2020 Mercedes-Benz GLE350 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 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 frequent issue arises from the brake light switch; if this switch is defective, it can inadvertently disengage the cruise control when the brake pedal is pressed, even if you haven't intended to turn it off. Additionally, a malfunctioning throttle actuator can disrupt the communication between the cruise control and the engine, preventing the system from maintaining speed. Electrical problems, such as blown fuses or wiring issues, can also hinder the cruise control's operation, as can software glitches within the vehicle's onboard computer. By identifying these potential problems, you can take the first steps toward restoring your cruise control functionality, whether through DIY repairs or by seeking professional assistance.

How urgent is it to address the malfunctioning cruise control in my 2020 Mercedes-Benz GLE350?

When it comes to the malfunctioning cruise control in your 2020 Mercedes-Benz GLE350, urgency is key. Ignoring this issue can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could result in accidents. Additionally, a malfunctioning cruise control system detracts from the overall driving experience, making it less convenient and enjoyable to use. Beyond immediate safety concerns, neglecting these symptoms can lead to more significant problems down the line, potentially damaging other vehicle components and resulting in costly repairs. Therefore, it is crucial to address any cruise control malfunctions promptly. By diagnosing and repairing the issue as soon as possible, you not only enhance your vehicle's performance and safety but also prevent further complications that could arise from prolonged neglect. For DIY enthusiasts, understanding the urgency of this situation can guide you in making informed decisions about whether to tackle the repairs yourself or seek professional assistance.

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2020 Mercedes-Benz GLE350 Cruise Control Problems & Repairs