2024 Toyota Prius Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2024 Toyota Prius and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2024 Toyota Prius 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 2024 Toyota Prius 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 take when the cruise control isn't working on a 2024 Toyota Prius?

When your 2024 Toyota Prius's cruise control isn't functioning, it's essential to approach the diagnosis methodically. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, inspect the cruise control buttons on the steering wheel; if they are unresponsive, this could indicate a problem with the buttons themselves. Following this, verify the speed sensor's functionality, since a malfunctioning sensor can prevent the cruise control from engaging. Utilizing a diagnostic scanner to check for error codes can provide further insights into any underlying issues. Additionally, ensure that your brake lights are operational, as a faulty brake light switch can interfere with cruise control functionality. Finally, take a moment to inspect the wiring connections associated with the cruise control system for any loose or damaged wires. By systematically addressing these areas, you can effectively troubleshoot and potentially resolve the cruise control issue on your Prius.

What are the common problems that could cause the cruise control to stop working in a 2024 Toyota Prius?

When troubleshooting the cruise control system in a 2024 Toyota Prius, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits is a faulty speed sensor, which can hinder the system's ability to accurately gauge the vehicle's speed, preventing it from engaging or maintaining the desired speed. Additionally, issues with the brake light switch can disrupt the cruise control operation, as the system is designed to deactivate when the brake pedal is pressed; a malfunctioning switch may fail to send the necessary signal for this action. Another potential issue lies within the throttle control system; problems such as a defective throttle position sensor can interfere with the cruise control's functionality. Electrical problems, including blown fuses or wiring issues, can also impede the system's performance, as can software glitches within the vehicle's onboard computer. By identifying and addressing these common issues, DIY enthusiasts can effectively troubleshoot and restore the cruise control functionality in their Prius.

How urgent is it to address the malfunctioning cruise control in my 2024 Toyota Prius?

When it comes to your 2024 Toyota Prius, addressing a malfunctioning cruise control system is not just a matter of convenience; it is a critical safety concern. A malfunction can lead to unexpected acceleration or deceleration, which significantly increases the risk of accidents on the road. Moreover, neglecting this issue can adversely affect your vehicle's fuel efficiency and overall performance, leading to higher operational costs. By addressing the problem promptly, you not only enhance your safety but also prevent the issue from escalating into more serious and costly repairs down the line. Therefore, it is essential to prioritize the repair of your cruise control system to ensure a safe and efficient driving experience.

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