2016 Lexus RC200t Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2016 Lexus RC200t and How to Fix Them

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Reviewed by
Devin Cabugcal
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 RC200t 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 RC200t 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 steps to diagnose the non-functioning cruise control in a 2016 Lexus RC200t?

When diagnosing the non-functioning cruise control in a 2016 Lexus RC200t, it's essential to adopt a methodical diagnostic approach. Begin by checking the cruise control fuse, as a blown fuse is a straightforward issue that can easily be resolved. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can hinder functionality. Following this, verify the speed sensor's performance, since a faulty sensor can prevent the cruise control from engaging altogether. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues within the cruise control system. Additionally, examine the brake and clutch switches, as these components are crucial for the safe operation of cruise control and can disable the system if they are not functioning correctly. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or loose connections, as these can disrupt communication with the cruise control module. By systematically addressing these areas, you can effectively diagnose and potentially resolve the cruise control issue in your Lexus RC200t.

What are the common problems that could cause the cruise control to stop working in a 2016 Lexus RC200t?

When the cruise control in your 2016 Lexus RC200t stops functioning, several common problems may be at play. One of the primary culprits could be a faulty cruise control switch, which may prevent the system from engaging or disengaging as intended. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a steady speed, leading to erratic performance. Another frequent issue is a malfunctioning brake light switch; if this switch fails, it can cause the cruise control to disengage unexpectedly whenever the brakes are applied. Furthermore, problems with the throttle actuator can hinder the system's ability to adjust the throttle position correctly, impacting overall functionality. Lastly, electrical problems such as wiring issues or blown fuses can also contribute to cruise control failure. For those looking to diagnose and repair these issues, understanding these potential causes is crucial for effective troubleshooting and restoration of the cruise control system.

How urgent is it to address the non-functioning cruise control in a 2016 Lexus RC200t?

Addressing a non-functioning cruise control in a 2016 Lexus RC200t is crucial for both safety and vehicle performance. When cruise control fails, it not only diminishes the convenience of maintaining a steady speed, which is particularly beneficial during long drives, but it may also signal deeper mechanical issues that could compromise the vehicle's overall functionality. Ignoring this problem can lead to increased driver fatigue, reduced fuel efficiency, and potentially hazardous driving conditions. Moreover, a malfunctioning cruise control system could be indicative of other underlying problems that require immediate attention from a qualified mechanic. Therefore, it is advisable to prioritize the diagnosis and repair of the cruise control system to prevent further damage and ensure the safe operation of your vehicle. Taking prompt action can help avoid more significant repairs down the line and enhance your driving experience.

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2016 Lexus RC200t Cruise Control Issues & Solutions