2013 Lexus LS600h Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2013 Lexus LS600h

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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 2013 Lexus LS600h 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 2013 Lexus LS600h 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 2013 Lexus LS600h?

When troubleshooting the non-functioning cruise control in a 2013 Lexus LS600h, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the cruise control fuse in the fuse box; a blown fuse can easily disrupt the system. Next, ensure that the cruise control settings are correctly configured according to the vehicle's manual, as incorrect settings can prevent activation. If these initial checks do not resolve the issue, use a diagnostic scanner to look for any error codes that may indicate specific problems within the cruise control system. Additionally, inspect the cruise control switch on the steering wheel for any signs of damage or malfunction, as this component is crucial for operation. It’s also important to test the brake pedal switch, since a faulty switch can inhibit cruise control engagement. Finally, verify that the vehicle speed sensor is functioning properly, as it must relay accurate speed information to the cruise control system. By systematically following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your Lexus LS600h.

What are the common problems that could cause the cruise control to stop working in a 2013 Lexus LS600h?

When dealing with a non-functional cruise control system in a 2013 Lexus LS600h, it's essential to understand the common problems that may be at play. One of the primary culprits is a faulty speed sensor, which can disrupt the system's ability to detect and maintain the vehicle's speed. Additionally, issues with the brake light switch can prevent the cruise control from disengaging properly, as this switch is designed to deactivate the system when the brake pedal is pressed. Another potential issue is a malfunctioning throttle actuator, which is responsible for controlling the engine's throttle and maintaining speed. Electrical problems, such as wiring faults or blown fuses, can also hinder the cruise control's operation. Lastly, vacuum leaks in the engine can affect the system's performance, as cruise control relies on vacuum pressure to function correctly. By identifying and addressing these common issues, DIYers can effectively troubleshoot and restore the cruise control system to its intended functionality.

How urgent is it to address the non-functioning cruise control in a 2013 Lexus LS600h?

When considering the urgency of fixing a non-functioning cruise control in a 2013 Lexus LS600h, it's essential to recognize that while this issue may not present an immediate safety hazard, it still warrants prompt attention. A malfunctioning cruise control can detract from the overall driving experience, leading to increased driver fatigue during long trips and potentially affecting fuel efficiency. Moreover, neglecting this problem could result in more significant complications down the line, such as further damage to the vehicle's electronic systems or the need for more extensive repairs, which can be costly. For DIY enthusiasts, addressing this issue sooner rather than later not only ensures a smoother and safer driving experience but also helps maintain the vehicle's full functionality, ultimately saving time and money in the long run. Therefore, while it may not be the most urgent repair, taking the initiative to diagnose and fix the cruise control system is a wise decision for any Lexus owner.

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