2020 Toyota Land Cruiser Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2020 Toyota Land Cruiser 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 Toyota Land Cruiser 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 Toyota Land Cruiser 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.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What are the steps to diagnose the cruise control issue in a 2020 Toyota Land Cruiser?

When diagnosing a cruise control issue in a 2020 Toyota Land Cruiser, it's important to follow a methodical diagnostic approach that prioritizes simpler checks before moving on to more complex solutions. Begin by inspecting the cruise control fuse, as a blown fuse can often be the simplest explanation for malfunction. Next, check the cruise control buttons on the steering wheel to ensure they are operational and not stuck, as this can hinder system engagement. Utilizing an OBD-II scanner to retrieve any error codes can provide critical insights into potential issues that may not be immediately apparent. Additionally, examining the speed sensors is vital, as they play a key role in the cruise control's functionality. Ensure that all wiring connections related to the cruise control system are secure and free from damage, as loose or frayed wires can disrupt the system's operation. Finally, test the cruise control module to verify that it is functioning correctly and sending the appropriate signals. If these steps do not resolve the issue, seeking assistance from a professional mechanic is recommended for a comprehensive diagnosis and repair. By adhering to this structured approach, you can effectively troubleshoot and resolve cruise control problems in your vehicle.

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

When dealing with cruise control issues in a 2020 Toyota Land Cruiser, it's essential to understand the common problems that may arise. One frequent culprit is a faulty brake pedal switch, which can disrupt the system's ability to engage or disengage properly. Additionally, speed sensor issues can lead to incorrect speed readings, causing the cruise control to malfunction. A blown fuse within the cruise control system can also prevent it from functioning as intended. Furthermore, a malfunctioning throttle actuator may hinder the system's ability to maintain the desired speed. Lastly, problems with the Electronic Control Module (ECM) can interfere with communication between the cruise control system and the engine, resulting in failure. If you experience any of these issues, it's advisable to consult a qualified mechanic for a thorough inspection and diagnosis.

How urgent is it to address the malfunctioning cruise control in a 2020 Toyota Land Cruiser?

When it comes to a malfunctioning cruise control in a 2020 Toyota Land Cruiser, the urgency to address the issue cannot be overstated. A faulty cruise control system can lead to unexpected acceleration or deceleration, creating hazardous driving conditions that could result in accidents. Moreover, such malfunctions may signal deeper issues within the vehicle's electronic systems or sensors, which can compromise overall drivability and safety. Ignoring these symptoms not only risks your safety but can also lead to decreased fuel efficiency and increased wear on critical components, ultimately resulting in more costly repairs down the line. By promptly diagnosing and addressing the cruise control malfunction, you can prevent further damage to the system and ensure that your vehicle operates smoothly and safely on the road. For those considering a DIY approach, understanding the urgency of these issues is crucial in making informed decisions about repairs and maintenance.

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2020 Toyota Land Cruiser Cruise Control Issues & Repairs