2016 Lexus IS200t Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Lexus IS200t 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 2016 Lexus IS200t 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 IS200t 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 steps to diagnose the cruise control issue in a 2016 Lexus IS200t?

To diagnose a cruise control issue in your 2016 Lexus IS200t, begin with the simplest checks to save time and effort. Start by inspecting the cruise control fuse; a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on your steering wheel to ensure they are not stuck or damaged, as this can prevent proper operation. If these initial checks do not reveal the problem, utilize an OBD-II scanner to look for any error codes that may indicate specific issues within the cruise control system. Following this, inspect the speed sensors, as they are vital for the cruise control's performance; faulty sensors can lead to erratic behavior. Additionally, check the wiring connections associated with the cruise control system for any signs of looseness or damage, which could hinder functionality. Finally, if all else fails, test the cruise control module itself to confirm it is sending and receiving signals correctly. By following this structured diagnostic approach, you can effectively identify the root cause of your cruise control issues and take the necessary steps to resolve them.

What are the common problems that could cause the cruise control to stop working in a 2016 Lexus IS200t?

When dealing with cruise control issues in a 2016 Lexus IS200t, it's essential to understand the common problems that may arise. One frequent culprit is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, leading to engagement failures. Additionally, the brake light switch can be problematic; if it malfunctions, it may cause the cruise control to disengage unexpectedly when the brake pedal is pressed, disrupting your driving experience. Another area to investigate is the throttle actuator, as any malfunction here can interfere with the communication between the cruise control system and the engine, resulting in operational issues. It's also wise to check for a blown fuse, as this can completely disable the cruise control system, necessitating a simple fuse replacement. Lastly, a defective cruise control module can prevent the system from functioning correctly, so inspecting this component is crucial. By understanding these common issues, DIYers can better diagnose and potentially resolve cruise control malfunctions in their Lexus IS200t.

How urgent is it to address the non-functioning cruise control in my 2016 Lexus IS200t?

When your cruise control system fails in your 2016 Lexus IS200t, it’s essential to recognize the urgency of the situation, even if it may not seem like an immediate emergency. A malfunctioning cruise control can lead to increased driver fatigue during long trips, as it removes the convenience of maintaining a steady speed. Moreover, this issue could indicate deeper problems within your vehicle's electronic systems or sensors, which might affect other critical functions. Ignoring the problem could result in more significant repairs down the line, potentially compromising your vehicle's safety and performance. Therefore, while you may be tempted to postpone repairs, addressing the cruise control issue promptly is advisable. This proactive approach not only enhances your driving experience but also ensures that your vehicle remains in optimal condition, safeguarding you and your passengers on the road. If you're considering a DIY fix, consult your vehicle's manual for troubleshooting tips, but don't hesitate to seek professional help if the problem persists.

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