2016 Lexus GS200t Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Lexus GS200t and How to Fix Them

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Reviewed by
Bo Fader
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 Lexus GS200t 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 Lexus GS200t 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.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

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 2016 Lexus GS200t?

When troubleshooting the non-functioning cruise control in your 2016 Lexus GS200t, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse; a blown fuse is a common and easily fixable issue that can disrupt the system's operation. Next, inspect the cruise control switch located on the steering wheel for any signs of damage or malfunction, as this component is essential for engaging the system. Following that, verify the functionality of the vehicle speed sensor, which is critical for the cruise control to operate correctly. Additionally, it’s wise to check for any error codes using the vehicle's onboard diagnostic system, as these codes can provide insight into underlying problems. Lastly, ensure that your brake lights are functioning properly, since a faulty brake light switch can prevent the cruise control from engaging altogether. By systematically addressing these areas, you can effectively diagnose and potentially resolve the cruise control issues in your Lexus GS200t.

What are the common problems that could cause the cruise control to stop working in a 2016 Lexus GS200t?

When the cruise control in your 2016 Lexus GS200t ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is a faulty speed sensor, which is crucial for the cruise control system to accurately gauge the vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Additionally, issues with the brake light switch can also disrupt the cruise control; if this switch is faulty, it may not signal the system to disengage when the brakes are applied, leading to operational problems. Another common issue is a blown fuse within the cruise control circuit, which can easily be checked and replaced to restore functionality. Furthermore, problems with the throttle control system, such as a defective throttle position sensor, can hinder the cruise control's ability to maintain speed. Lastly, electrical problems, including damaged wiring or corroded connections, can interfere with the communication between the cruise control components. By systematically checking these areas, you can troubleshoot and potentially resolve the issues affecting your cruise control system.

How urgent is it to address the non-functioning cruise control in my 2016 Lexus GS200t?

When your 2016 Lexus GS200t's cruise control stops working, it’s essential to recognize the urgency of the situation. While it may seem like a minor inconvenience, a malfunctioning cruise control can signal deeper issues within your vehicle's electronic systems or sensors, potentially affecting overall performance. Ignoring this problem could lead to more significant complications, including safety risks while driving. For DIY enthusiasts, it’s advisable to start by checking the fuse related to the cruise control system, as a blown fuse is a common culprit. Additionally, inspect the brake pedal switch, which can disrupt cruise control functionality if faulty. If these simple checks do not resolve the issue, it’s crucial to consult a professional mechanic to diagnose and repair any underlying problems. Addressing the cruise control issue promptly not only enhances your driving experience but also ensures your vehicle remains safe and reliable on the road.

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2016 Lexus GS200t Cruise Control Not Working | RepairPal