2017 Toyota Land Cruiser Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Toyota Land Cruiser 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
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2017 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 2017 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 initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2017 Toyota Land Cruiser?

When troubleshooting the non-functioning cruise control in a 2017 Toyota Land Cruiser, it's essential to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown fuse is a common and easily fixable issue that can disrupt the system's operation. Next, verify the functionality of the cruise control switch; a malfunctioning switch can prevent the system from engaging. Following this, inspect the speed sensors, as they play a crucial role in the cruise control's performance; if they are faulty, they may need replacement. Additionally, using a diagnostic scanner to check for error codes can provide insights into specific problems affecting the cruise control system. Lastly, ensure that the brake lights are operational, as any issues here can inadvertently disable the cruise control. By methodically working through these steps, you can effectively identify and address the root cause of the cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2017 Toyota Land Cruiser?

When troubleshooting the cruise control system in a 2017 Toyota Land Cruiser, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to erratic behavior or complete failure. Another potential issue is a blown fuse, which can cut power to the cruise control system entirely. Furthermore, a malfunctioning throttle actuator may hinder the system's ability to adjust the vehicle's speed as needed. Lastly, problems with the Electronic Control Module (ECM) can also affect the cruise control's functionality, as this computer oversees various vehicle operations. If you encounter issues with your cruise control, it's advisable to conduct a thorough inspection of these components to identify and resolve the problem effectively.

How urgent is it to address the malfunctioning cruise control in a 2017 Toyota Land Cruiser?

Addressing a malfunctioning cruise control system in a 2017 Toyota Land Cruiser is of utmost importance due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can result in dangerous driving conditions and increase the likelihood of accidents. Furthermore, timely intervention not only ensures the vehicle's systems operate correctly but also helps maintain overall performance and fuel efficiency. Ignoring these symptoms can lead to more severe issues, including potential damage to the engine or related components, which could result in costly repairs down the line. Therefore, it is crucial for DIY enthusiasts to recognize the urgency of this issue and consider seeking professional assistance to diagnose and repair the cruise control system, ensuring both safety and reliability on the road.

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