2023 Mercedes-Benz GLS580 Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2023 Mercedes-Benz GLS580

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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 2023 Mercedes-Benz GLS580 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 2023 Mercedes-Benz GLS580 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to take when the cruise control isn't working on a 2023 Mercedes-Benz GLS580?

When faced with a malfunctioning cruise control system in your 2023 Mercedes-Benz GLS580, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control settings in the vehicle's menu to ensure they are properly configured and activated. Next, verify the functionality of the speed sensors, as they play a crucial role in the operation of the cruise control. Inspect the wiring connections associated with the cruise control system for any signs of looseness or damage that could hinder performance. Utilizing a diagnostic scanner can also be beneficial; it allows you to scan for error codes that may indicate specific issues within the system. Additionally, test the cruise control buttons on the steering wheel to confirm they are responsive. Don't overlook the brake and clutch switches, as these components are designed to disengage the cruise control when either pedal is pressed. If your vehicle employs a vacuum-operated system, inspecting the vacuum lines for leaks or damage is also advisable. By following these steps, you can effectively diagnose and address the cruise control issue, ensuring a smoother driving experience.

What are the common problems that could cause the cruise control to malfunction in a 2023 Mercedes-Benz GLS580?

When experiencing cruise control malfunctions in a 2023 Mercedes-Benz GLS580, it's essential to understand the common problems that may be at play. One frequent issue is sensor malfunction, where the sensors responsible for monitoring speed and distance may fail, leading to erratic cruise control behavior. Additionally, electrical faults, such as blown fuses or damaged wiring, can disrupt the system's functionality, making it crucial to inspect the vehicle's electrical components. Another common culprit is a faulty brake light switch, which can prevent the cruise control from engaging or disengaging as intended. Throttle control malfunctions can also impact the system's ability to maintain speed, so checking the throttle system is advisable. Lastly, software glitches within the vehicle's control module can cause unexpected issues, highlighting the importance of keeping the software updated. By understanding these potential problems, DIY enthusiasts can better diagnose and address cruise control issues in their Mercedes-Benz GLS580.

How urgent is it to address the malfunctioning cruise control in my 2023 Mercedes-Benz GLS580?

When it comes to your 2023 Mercedes-Benz GLS580, the urgency of addressing a malfunctioning cruise control system cannot be overstated. Ignoring this issue can lead to serious safety risks, such as unexpected acceleration or deceleration, which can jeopardize your safety and that of others on the road. Additionally, a faulty cruise control system can detract from your driving comfort, making long journeys more exhausting and less enjoyable. Beyond immediate safety and comfort concerns, neglecting the problem can adversely affect your vehicle's overall performance, potentially leading to further complications within the cruise control system itself. This not only compromises your driving experience but can also escalate repair costs significantly if the issue is allowed to worsen. Therefore, it is crucial to address any signs of malfunction promptly to ensure your vehicle remains safe, comfortable, and efficient on the road.

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2023 Mercedes-Benz GLS580 Cruise Control Issues & Repairs