2018 Land Rover Range Rover Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2018 Land Rover Range Rover 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
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 2018 Land Rover Range Rover 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 2018 Land Rover Range Rover 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 steps to diagnose the cruise control issue in a 2018 Land Rover Range Rover?

To effectively diagnose a cruise control issue in your 2018 Land Rover Range Rover, begin with the simplest solutions before moving on to more intricate assessments. Start by checking 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 responsive and not stuck, as faulty buttons can lead to operational problems. If these initial checks do not resolve the issue, utilize a diagnostic scanner to identify any error codes from the vehicle's onboard computer, which can provide insights into specific malfunctions. Following this, examine the speed sensors, as they are vital for the cruise control system's performance; any faults here can significantly impact functionality. Additionally, inspect the wiring connections associated with the cruise control system for any signs of damage or loose connections, as these can also cause issues. Finally, if all else fails, test the cruise control module itself to confirm it is functioning correctly. By systematically following these steps, you can effectively diagnose and address cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2018 Land Rover Range Rover?

When the cruise control in a 2018 Land Rover Range Rover ceases to function, it can be attributed to several common issues that are often manageable for a DIY enthusiast to investigate. One primary concern is faulty speed sensors, which play a crucial role in relaying the vehicle's speed to the cruise control system; if these sensors malfunction, the system may not operate correctly. Additionally, problems with the brake light switch can lead to unexpected disengagement of the cruise control when the brake pedal is pressed, making it essential to check this component for proper operation. Another area to consider is the throttle actuator, as any malfunction here can hinder the system's ability to maintain the desired speed. Electrical issues, such as blown fuses or damaged wiring, can also disrupt cruise control functionality, so inspecting the vehicle's electrical system is advisable. Lastly, vacuum leaks in the engine can significantly impact the cruise control's performance, warranting a thorough examination of the vacuum lines. By systematically checking these components, DIYers can often identify and rectify the issues affecting their cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2018 Land Rover Range Rover?

Addressing a malfunctioning cruise control system in a 2018 Land Rover Range Rover is of utmost importance due to the inherent safety risks involved. A malfunction can lead to unexpected acceleration or deceleration, which not only endangers the driver and passengers but also poses a threat to other road users. The urgency to resolve this issue cannot be overstated; prompt action can prevent accidents that may arise from a faulty system. Additionally, neglecting the problem may result in further damage to the vehicle's components, leading to more extensive and costly repairs down the line. Therefore, it is crucial for any owner experiencing cruise control issues to prioritize diagnosis and repair to ensure both safety and the longevity of their vehicle.

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