2020 Land Rover Discovery Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Land Rover Discovery and How to Fix Them

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Reviewed by
Aisha
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 2020 Land Rover Discovery 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 2020 Land Rover Discovery 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 2020 Land Rover Discovery?

To effectively diagnose the cruise control issue in your 2020 Land Rover Discovery, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by examining the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can lead to malfunctions. Utilizing an OBD-II scanner is crucial for identifying 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. Additionally, inspect the wiring connections for any signs of damage or loose connections that could be affecting the system. Finally, test the cruise control module itself to confirm it is functioning correctly. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2020 Land Rover Discovery?

When troubleshooting the cruise control system in a 2020 Land Rover Discovery, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is faulty speed sensors, which are crucial for the system to accurately gauge the vehicle's speed. If these sensors malfunction, the cruise control may not engage or maintain speed effectively. Another frequent issue is a malfunctioning brake light switch; since this switch is designed to deactivate cruise control when the brakes are applied, any faults can disrupt the system's operation. Additionally, a blown fuse can completely disable the cruise control, making it imperative to check the fuse box for any issues. Throttle control problems, particularly with the throttle position sensor, can also hinder the cruise control's ability to maintain a steady speed. Lastly, electrical problems, including wiring issues or a faulty control module, can lead to system failure. Addressing these common problems can often restore functionality to the cruise control system, but for complex issues, consulting a qualified mechanic is advisable.

How urgent is it to address the non-functioning cruise control in a 2020 Land Rover Discovery?

Addressing a non-functioning cruise control in a 2020 Land Rover Discovery is crucial for both safety and vehicle performance. While it may seem like a minor inconvenience, a malfunctioning cruise control system can signal deeper electronic issues that could compromise the vehicle's overall functionality. Ignoring this problem could lead to increased driver fatigue during long trips, as the driver may have to maintain constant speed manually, which can be exhausting. Furthermore, the underlying issues affecting the cruise control could escalate, potentially resulting in more significant and costly repairs down the line. Given that modern vehicles rely heavily on interconnected electronic systems, ensuring that all components, including cruise control, are functioning correctly is essential for maintaining optimal performance and safety. Therefore, it is advisable to address any cruise control malfunctions promptly to avoid complications and ensure a smooth driving experience in your Land Rover Discovery.

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