2013 Lexus RX350 Cruise Control Isn't Working

Fixing Cruise Control Issues in Your 2013 Lexus RX350

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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 RX350 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 RX350 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-functional cruise control in a 2013 Lexus RX350?

When troubleshooting the non-functional cruise control in a 2013 Lexus RX350, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a straightforward issue that can easily disrupt the system. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational, as malfunctioning buttons can prevent engagement. Following this, verify the speed sensor's functionality, since it is critical for the cruise control system to operate correctly. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into any underlying issues. Additionally, examine the brake lights; a faulty brake light switch can inadvertently disable the cruise control. Lastly, if your vehicle uses vacuum lines for the cruise control system, inspect them for any leaks or damage that could be affecting performance. By methodically working through these steps, you can effectively identify and address the root cause of the cruise control malfunction in your Lexus RX350.

What are the common problems that could cause the cruise control to stop working in a 2013 Lexus RX350?

When dealing with a malfunctioning cruise control system in a 2013 Lexus RX350, it's essential to understand the common problems that may be at play. One of the first areas to check is the brake light switch, as a faulty switch can prevent the cruise control from engaging, since the system is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the vehicle's ability to maintain a constant speed, leading to cruise control failure. It's also wise to inspect the fuses related to the cruise control system, as a blown fuse can completely disable its functionality. Furthermore, the throttle actuator, which regulates engine speed, may malfunction and affect cruise control performance. Lastly, a defective cruise control module could be the root cause of the problem. By systematically examining these components, DIYers can effectively diagnose and potentially resolve the cruise control issues in their Lexus RX350.

How urgent is it to address the malfunctioning cruise control in a 2013 Lexus RX350?

When it comes to the malfunctioning cruise control in a 2013 Lexus RX350, urgency is paramount. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which significantly increases the risk of accidents on the road. Ignoring these symptoms not only jeopardizes your safety but can also result in more extensive damage to the vehicle's systems, leading to costly repairs down the line. Therefore, it is crucial to have the cruise control system inspected and repaired as soon as possible by a qualified mechanic or dealership. By addressing the issue promptly, you ensure not only your safety but also the overall performance and reliability of your vehicle, allowing you to drive with confidence.

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2013 Lexus RX350 Cruise Control Not Working: Causes & Fixes