2016 Lexus CT200h Cruise Control Isn't Working

Fix cruise control issues in your 2016 Lexus CT200h for restored functionality.

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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 CT200h 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 CT200h 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 2016 Lexus CT200h?

When troubleshooting the non-functioning cruise control in a 2016 Lexus CT200h, it's essential to adopt a systematic diagnostic approach. Start by checking the cruise control fuse, as a blown or damaged fuse can easily disrupt the system's functionality. Next, inspect the cruise control switch located on the steering wheel to ensure it is operational; a faulty switch can prevent the system from engaging. Following this, verify the vehicle speed sensor, which is critical for cruise control operation, as it communicates the car's speed to the system. Additionally, examine the brake pedal switch, ensuring it is not stuck or malfunctioning, since the cruise control is designed to disengage when the brakes are applied. Finally, consider scanning the vehicle's onboard computer for any error codes that may indicate specific issues within the cruise control system. By methodically following these steps, you can effectively diagnose and potentially resolve the cruise control problem in your Lexus CT200h.

What are the common problems that could cause the cruise control to stop working in a 2016 Lexus CT200h?

When the cruise control in your 2016 Lexus CT200h ceases to function, it can be frustrating, but understanding the common problems can guide you in troubleshooting the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge your vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain the desired speed. Another potential issue lies with the brake light switch; if this switch is defective, it can inadvertently signal the cruise control to disengage whenever the brakes are applied, disrupting its operation. Additionally, a malfunctioning throttle actuator can hinder the cruise control's ability to adjust the throttle position, further complicating its functionality. In some cases, the cruise control module itself may be defective, necessitating replacement to restore proper operation. Lastly, don’t overlook electrical problems such as wiring issues or blown fuses, as these can also impede the cruise control system. By identifying and addressing these common issues, you can effectively restore the cruise control functionality in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2016 Lexus CT200h?

Addressing a malfunctioning cruise control in a 2016 Lexus CT200h is of utmost urgency due to the significant safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can endanger not only the driver but also other road users. Additionally, a malfunctioning cruise control can create discomfort and frustration during driving, detracting from the overall experience. Ignoring these symptoms may result in more severe issues down the line, potentially leading to costly repairs and further complications within the vehicle's systems. Therefore, it is crucial for owners to prioritize the diagnosis and repair of cruise control problems to ensure both safety and the longevity of their vehicle.

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