Land Rover Discovery Sport Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Land Rover Discovery Sport 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
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25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Land Rover Discovery Sport 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 Land Rover Discovery Sport 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.

Troubleshooting Cruise Control Issues in a Land Rover Discovery Sport

When troubleshooting cruise control issues in your Land Rover Discovery Sport, begin by checking the cruise control switch located on the right side of the steering wheel. Ensure that it is functioning properly and not stuck or damaged. If you encounter a "Cruise not available" message on the dashboard, this could indicate a fault in the system that requires further investigation. A common culprit is a malfunctioning brake light; if a brake light is out, it can prevent the cruise control from engaging, so inspect the brake lights and replace any burnt-out bulbs. Next, examine the throttle and cruise control cable adjustments, as improper settings can lead to operational issues. If these initial checks do not resolve the problem, inspect the vacuum lines connected to the cruise control module for any signs of damage or leaks, as these can significantly impact the system's performance. By following this systematic approach, you can effectively diagnose and potentially resolve cruise control issues in your vehicle.

What Are the Common Causes of Cruise Control Malfunction in a Land Rover Discovery Sport?

When diagnosing cruise control malfunctions in a Land Rover Discovery Sport, it's essential to consider several common problems that could be affecting the system. One of the primary culprits is a failed control module, which can disrupt the communication between the cruise control system and the vehicle's engine management. Additionally, issues with sensors or switches, such as a malfunctioning throttle position sensor, can lead to erratic behavior or complete failure of the cruise control. If the throttle position sensor is faulty, it may cause the engine's computer to miscalculate fuel delivery, potentially resulting in black exhaust emissions. Furthermore, throttle actuation problems can also hinder the cruise control's performance, making it crucial to inspect the throttle system for any irregularities. For those who own a model from 2015 to 2016, it's also wise to check for any recalls related to keyless entry software or braking issues, as these could indirectly affect the cruise control functionality. By systematically checking these components, DIYers can effectively troubleshoot and resolve cruise control issues in their Land Rover Discovery Sport.

Why is the Cruise Control Not Working in a Land Rover Discovery Sport?

When the cruise control in your Land Rover Discovery Sport is not functioning, it’s crucial to act promptly, as neglecting the issue can lead to safety risks and potentially more significant mechanical problems. Common culprits include a failed control module, faulty sensors, or malfunctioning switches, all of which can disrupt the cruise control system's operation. Additionally, throttle actuation problems may arise, particularly if the throttle position sensor is compromised, leading to erratic engine behavior and even black exhaust emissions. It's also important to consider that features like Hill Descent Control (HDC) and All Terrain Progress Control (ATPC) can interfere with cruise control functionality. By addressing these issues quickly, you not only enhance your driving experience but also ensure the safety of yourself and others on the road. Regular checks and timely repairs can prevent minor issues from escalating into costly repairs, making it essential for any DIY enthusiast to stay vigilant about their vehicle's performance.

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Land Rover Discovery Sport Cruise Control Issues & Solutions