2014 Lexus CT200h Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2014 Lexus CT200h and How to Fix Them

Find Repair Location
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 2014 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 2014 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 steps to diagnose the non-functioning cruise control in a 2014 Lexus CT200h?

To effectively diagnose the non-functioning cruise control in your 2014 Lexus CT200h, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse can often be the simplest explanation for the issue. Next, examine the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent the system from engaging. Following this, check the speed sensors, which are vital for cruise control operation, to confirm they are functioning correctly. Utilizing an OBD-II scanner can help you identify any error codes that may indicate specific problems within the cruise control system. Additionally, inspect the brake and clutch switches, as faulty switches can disable the cruise control. Look for any loose connections or damaged wiring that could disrupt the system's functionality. Finally, test the cruise control module to ensure it is sending signals properly. If these steps do not resolve the issue, consulting a professional mechanic may be necessary for further diagnosis and repair. By following this structured approach, you can efficiently identify the root cause of the cruise control malfunction.

What are the common problems that could cause the cruise control to stop working in a 2014 Lexus CT200h?

When troubleshooting cruise control issues in a 2014 Lexus CT200h, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied; if this switch malfunctions, the system may not engage at all. Additionally, speed sensor issues can disrupt the cruise control's functionality, as the system relies on accurate speed readings to maintain the desired speed. A blown fuse can also be a simple yet effective reason for cruise control failure, necessitating a quick fuse replacement to restore operation. Furthermore, problems with the throttle actuator can hinder the system's ability to maintain speed, while issues with the Electronic Control Module (ECM) can lead to broader functionality problems, including cruise control failure. By systematically checking these components, DIY enthusiasts can effectively diagnose and potentially resolve cruise control issues in their Lexus CT200h.

How urgent is it to address the non-functioning cruise control in a 2014 Lexus CT200h?

When it comes to a non-functioning cruise control in a 2014 Lexus CT200h, the urgency of addressing the issue cannot be overstated. While it may seem like a minor inconvenience, neglecting this problem can lead to more significant safety risks and potential damage to the vehicle's electronic systems. Cruise control is designed to enhance driving comfort and efficiency, particularly on long trips, and its failure may indicate underlying issues that could affect other critical functions of the car. For DIY enthusiasts, it’s essential to recognize that while troubleshooting the cruise control system can be a rewarding challenge, it’s crucial to approach the task with caution. Begin by checking the vehicle’s fuses and connections, as these are often the culprits behind such malfunctions. If the problem persists, consulting a professional mechanic is advisable to ensure that any underlying issues are properly diagnosed and resolved. By addressing the cruise control issue promptly, you not only enhance your driving experience but also safeguard the overall performance and safety of your Lexus CT200h.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.