2016 Toyota Land Cruiser Cruise Control Not Working

Common Causes of Cruise Control Malfunctions in Your 2016 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 2016 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 2016 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 cruise control issue in a 2016 Toyota Land Cruiser?

When troubleshooting a cruise control issue in a 2016 Toyota Land Cruiser, it's essential to adopt a systematic diagnostic approach. Start by checking the basic functionality of the system; ensure that the ignition is on and that the cruise control indicator light activates when the main switch is turned on. If the light does not illuminate, this could indicate a wiring issue or a malfunctioning cruise control module. Next, assess the diagnostic codes by observing the indicator light for any flashes that may signal errors in the Cruise Control ECU. This involves manipulating the control switch to the SET/Coast position and monitoring the light for specific flash patterns. Additionally, test the functionality of the SET/Coast and RES/ACC switches by checking for the expected flash sequences when the switches are engaged. It's also crucial to verify that the cancel switches, including the brake and parking brake switches, are operational, as these can affect cruise control engagement. Finally, check the speed sensor by driving at various speeds to ensure it is functioning correctly. If these initial checks do not resolve the issue, consulting the vehicle's manual for detailed troubleshooting steps tailored to the specific cruise control system can provide further guidance. By following this structured approach, you can effectively identify and address the root cause of the cruise control problem.

What are the common problems that could cause the cruise control to stop working in a 2016 Toyota Land Cruiser?

When troubleshooting the cruise control system in your 2016 Toyota Land Cruiser, it's essential to understand the common problems that could lead to its failure. One of the primary issues could be damaged mechanical components, such as the vacuum actuator or throttle cable, which, although less common in newer models, can still affect functionality. Additionally, a blown fuse is a frequent culprit; since cruise control systems rely on specific fuses, checking and replacing any that are blown can often restore operation. Another critical component is the speed sensor, which provides necessary speed readings; if this sensor is damaged, it can disrupt the cruise control's performance and even impact the speedometer. The brake pedal switch is also vital, as a malfunction here may cause the system to think the brake is engaged, preventing cruise control from activating. Sometimes, the issue may simply stem from incorrect activation or settings, so ensure you are using the cruise control correctly according to your vehicle's manual. Lastly, electronic or system malfunctions, including issues with the vehicle's computer or sensors related to adaptive cruise control, can also hinder performance. By systematically checking these areas, you can effectively diagnose and potentially resolve the cruise control issues in your Land Cruiser.

How urgent is it to address the non-functioning cruise control in a 2016 Toyota Land Cruiser?

Addressing the non-functioning cruise control in your 2016 Toyota Land Cruiser is more urgent than it may initially seem. While it may not pose an immediate safety risk, neglecting this issue can lead to increased driver fatigue during long journeys, which can compromise your focus and reaction times on the road. Furthermore, the malfunction could be indicative of more serious underlying problems, such as a faulty brake pedal switch or a damaged speed sensor, both of which can affect critical vehicle systems and safety features. Ignoring these symptoms may result in more extensive and costly repairs down the line, as electrical issues or mechanical failures could escalate if not addressed promptly. Therefore, it is advisable to diagnose and repair the cruise control issue as soon as possible to ensure your vehicle remains in optimal condition and to maintain your driving comfort and safety.

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