2022 Mercedes-Benz GLB35 AMG Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2022 Mercedes-Benz GLB35 AMG

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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 GLB35 AMG 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 GLB35 AMG 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 cruise control issue in my 2022 Mercedes-Benz GLB35 AMG?

To effectively diagnose the cruise control issue in your 2022 Mercedes-Benz GLB35 AMG, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on the steering wheel for any signs of damage or wear that could hinder their operation. Utilizing an OBD-II scanner is crucial at this stage; it allows you to identify any error codes that may indicate specific problems within the cruise control system. Following this, check the speed sensors, as they are integral to the system's performance. If these components appear to be functioning correctly, proceed to test the cruise control module to ensure it is effectively sending and receiving signals. Finally, inspect the wiring and connections associated with the cruise control system for any damage or corrosion that could be causing the malfunction. By following this structured diagnostic approach, you can pinpoint the issue and take the necessary steps to resolve it.

What are the common problems that could cause the cruise control to stop working in a 2022 Mercedes-Benz GLB35 AMG?

When the cruise control in your 2022 Mercedes-Benz GLB35 AMG ceases to function, it can be frustrating, but understanding the common issues can help you diagnose the problem effectively. One of the primary culprits is a faulty speed sensor, which is essential for the cruise control system to accurately gauge the 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 send incorrect signals to the cruise control system, disrupting its operation. Additionally, a malfunctioning throttle actuator can hinder the cruise control's ability to adjust the throttle position, further complicating its functionality. In some cases, the cruise control module itself may be at fault, leading to a lack of response to commands or an inability to maintain speed. Lastly, electrical problems such as wiring issues or blown fuses can interrupt communication between the various components of the cruise control system. By identifying these potential issues, you can take the first steps toward troubleshooting and restoring the cruise control functionality in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2022 Mercedes-Benz GLB35 AMG?

When dealing with a malfunctioning cruise control in a 2022 Mercedes-Benz GLB35 AMG, the urgency of addressing the issue cannot be overstated. A malfunctioning system can lead to unexpected acceleration or deceleration, creating a significant safety risk for both the driver and other road users. This unpredictability can result in dangerous driving conditions, making it essential to act quickly. Additionally, a properly functioning cruise control system enhances driving comfort by maintaining a steady speed, and any disruption can detract from the overall driving experience. Furthermore, neglecting this issue may lead to more severe vehicle performance problems down the line, potentially resulting in costly repairs. Therefore, it is crucial to consult the manufacturer's guidelines or seek assistance from a certified Mercedes-Benz service center to ensure that the cruise control system is addressed promptly and effectively. Prioritizing this repair not only safeguards your safety but also preserves the integrity and performance of your vehicle.

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