2020 Mercedes-Benz Sprinter 2500 Cruise Control Isn't Working

Cruise Control Malfunctions in 2020 Mercedes-Benz Sprinter 2500

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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 2020 Mercedes-Benz Sprinter 2500 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 Sprinter 2500 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.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What steps should I take to diagnose the non-functioning cruise control in my 2020 Mercedes-Benz Sprinter 2500?

To effectively diagnose the non-functioning cruise control in your 2020 Mercedes-Benz Sprinter 2500, 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. Next, examine the cruise control buttons on the steering wheel to ensure they are operational, as faulty buttons can hinder engagement. Following this, verify the functionality of the speed sensors, since any malfunction here can disrupt the cruise control system. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific issues affecting the system. Additionally, assess the brake and clutch switches, as these components must function correctly for the cruise control to activate. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or loose connections. If these steps do not resolve the issue, it may be necessary to consult a professional mechanic or an authorized Mercedes-Benz service center for a comprehensive evaluation and repair. This methodical approach not only helps in identifying the problem but also ensures that you address the most likely causes first, saving time and effort in the troubleshooting process.

What are the common problems that could cause the cruise control to stop working in a 2020 Mercedes-Benz Sprinter 2500?

When troubleshooting cruise control issues in a 2020 Mercedes-Benz Sprinter 2500, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can disrupt the system's ability to accurately gauge the vehicle's speed, preventing the cruise control from engaging or maintaining speed. Additionally, problems with the brake light switch can cause the cruise control to disengage unexpectedly when the brake pedal is pressed, creating an inconsistent driving experience. Another potential culprit is a malfunctioning throttle actuator, which can hinder communication between the cruise control system and the engine, resulting in operational failures. Furthermore, a defective cruise control module may prevent the system from receiving the necessary signals to function correctly. Lastly, various electrical problems, such as wiring issues or blown fuses, can also interfere with the cruise control's performance. By identifying and addressing these common issues, DIY enthusiasts can effectively troubleshoot and restore the cruise control functionality in their Sprinter 2500.

How urgent is it to address the malfunctioning cruise control in a 2020 Mercedes-Benz Sprinter 2500?

When it comes to a malfunctioning cruise control in a 2020 Mercedes-Benz Sprinter 2500, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unexpected acceleration or deceleration, creating significant safety hazards on the road. Moreover, such malfunctions may signal deeper issues within the vehicle's electronic systems or sensors, which can compromise overall drivability and performance. Ignoring these symptoms not only risks your safety but can also result in increased fuel consumption and potential damage to other vehicle components, leading to more costly repairs down the line. Therefore, it is crucial for DIY enthusiasts to recognize that promptly diagnosing and addressing cruise control problems is essential for maintaining the vehicle's optimal performance and ensuring a safe driving experience. Taking action sooner rather than later can prevent further complications and save you money in the long run, making it imperative to prioritize this issue.

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