2010 Mercedes-Benz GLK350 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2010 Mercedes-Benz GLK350 and How to Fix Them

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Reviewed by
Bo Fader
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 2010 Mercedes-Benz GLK350 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
  • Control Module: A faulty control module can result in 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 acceleration and poor engine 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 2010 Mercedes-Benz GLK350 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 first steps to diagnose cruise control issues in a 2010 Mercedes-Benz GLK350?

When diagnosing cruise control issues in a 2010 Mercedes-Benz GLK350, it's essential to adopt a systematic diagnostic approach. Start by checking for any warning messages on the instrument cluster, as these can provide immediate insight into potential problems. Next, consult your vehicle's manual to locate the fuse box and inspect the fuse dedicated to the cruise control system; a simple multimeter test can confirm its functionality. If the fuse is intact, proceed to examine the control module, as a malfunction here can disrupt the entire system. Additionally, inspect the cruise control sensor and throttle, as both components play critical roles in the system's operation. Look for any physical damage or loose connections that might be affecting performance. If these initial checks do not resolve the issue, consider seeking professional assistance, as more complex problems may require expert diagnosis. Engaging with online forums or communities can also provide valuable insights, as other owners may have encountered similar issues and found effective solutions. By following this structured approach, you can efficiently identify and address cruise control problems in your GLK350.

What causes cruise control failure in a 2010 Mercedes-Benz GLK350?

When troubleshooting cruise control failure in a 2010 Mercedes-Benz GLK350, it's important to recognize the various common problems that may be at play. A defective brake pedal switch is often a primary issue, as it can hinder the cruise control from engaging correctly. Additionally, a blown fuse can interrupt the power supply to critical components like the cruise control switch and the vehicle's Speed Sensor (VSS), resulting in system malfunction. Problems within the throttle control system can also disrupt cruise control functionality, alongside potential issues with the ABS wheel speed sensor. Other contributing factors may include sensor or switch malfunctions, throttle actuation problems, or even broken vacuum lines in older systems. Timely identification and resolution of these issues are vital for restoring the cruise control system's proper operation, ultimately enhancing both safety and driving comfort.

How urgent is it to address the malfunctioning cruise control in a 2010 Mercedes-Benz GLK350?

When dealing with a malfunctioning cruise control in a 2010 Mercedes-Benz GLK350, understanding the urgency of the situation is crucial. If the issue stems from a defective brake pedal switch or a faulty ABS wheel speed sensor, it can significantly impact your vehicle's safety and performance. Ignoring these symptoms may lead to more severe problems, such as erratic acceleration or loss of control while driving, which can pose serious risks on the road. Additionally, if the malfunction is linked to a blown fuse or a bad brake switch, while it may not seem immediately critical, timely repairs are essential to maintain the overall functionality of your vehicle. In cases where the cruise control system can be reset with a simple vehicle restart, it’s still important to monitor for recurring issues, especially if accompanied by a check engine light. Prolonged neglect could result in costly repairs or even compromise your safety. Therefore, addressing cruise control malfunctions promptly not only ensures a smoother driving experience but also safeguards against potential hazards and extensive damage.

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Cruise Control Malfunction in 2010 Mercedes GLK350