2022 Mercedes-Benz GLC300 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2022 Mercedes-Benz GLC300 and How to Fix Them

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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 2022 Mercedes-Benz GLC300 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 2022 Mercedes-Benz GLC300 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 2022 Mercedes-Benz GLC300?

When diagnosing the non-functioning cruise control in your 2022 Mercedes-Benz GLC300, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily rectifiable issue. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder the system's operation. Following this, verify the functionality of the speed sensor, since a malfunction here can disrupt the cruise control's ability to engage. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are operational, as faulty switches can prevent activation. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion, as these can lead to failures. By methodically following these steps, you can effectively identify and address the root cause of your cruise control issues.

What are the common problems that could cause the cruise control to stop working in a 2022 Mercedes-Benz GLC300?

When troubleshooting the cruise control system in a 2022 Mercedes-Benz GLC300, it's essential to understand the common problems that may lead to its malfunction. One prevalent issue is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, problems with the brake light switch can disrupt the cruise control function, as the system is designed to disengage when the brake pedal is pressed. Another potential culprit is a malfunctioning throttle actuator, which plays a crucial role in controlling the engine's throttle opening and can affect the cruise control's performance. Electrical issues, such as blown fuses or wiring problems, may also impede the system's functionality, along with software glitches that can arise in the vehicle's control module. By identifying and addressing these common issues, you can effectively restore the cruise control functionality in your GLC300, ensuring a smoother driving experience.

How urgent is it to address the malfunctioning cruise control in my 2022 Mercedes-Benz GLC300?

Addressing a malfunctioning cruise control in your 2022 Mercedes-Benz GLC300 is crucial for both your safety and the longevity of your vehicle. When cruise control fails, it can lead to unpredictable acceleration or deceleration, creating hazardous driving conditions that could endanger you and others on the road. Additionally, a properly functioning cruise control system enhances your driving experience, especially during long trips, by allowing you to maintain a steady speed without constant pedal pressure. Ignoring this issue not only compromises your comfort but can also lead to more severe problems within the vehicle's systems, resulting in costly repairs down the line. Therefore, it is essential to prioritize the repair of your cruise control system to ensure safe and enjoyable driving.

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