2024 Toyota Prius Prime Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2024 Toyota Prius Prime

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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 Prime 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 Prime 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 steps should I take to diagnose the cruise control issue in my 2024 Toyota Prius Prime?

When diagnosing the cruise control issue in your 2024 Toyota Prius Prime, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on your steering wheel to ensure they are operational, since faulty buttons can lead to engagement problems. Utilizing an OBD-II scanner to check for error codes is a crucial step, as these codes can pinpoint specific issues within the cruise control system. Additionally, verify that the speed sensors are functioning correctly, as they are integral to the system's performance. Don't overlook the brake and clutch switches; if these are malfunctioning, they can prevent the cruise control from activating. A thorough inspection of the wiring and connections is also vital, as damaged or corroded wires can cause connectivity issues. If, after these checks, the problem remains unresolved, it may be time to consult a professional mechanic or an authorized Toyota service center for further assistance. By following this structured diagnostic approach, you can effectively identify and address the cruise control issue in your vehicle.

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

When the cruise control in your 2024 Toyota Prius Prime stops functioning, several common issues may be at play. One of the first things to check is the cruise control switch, as a malfunction here can prevent the system from engaging. Additionally, a blown fuse in the cruise control circuit can lead to a complete failure of the system, so inspecting the fuses is a crucial step. Another potential culprit is the vehicle speed sensor; if this sensor is not working correctly, it can disrupt the cruise control's ability to maintain speed. It's also important to consider the brake light switch; if this switch is faulty, it may cause the cruise control to disengage unexpectedly. Furthermore, issues with the throttle actuator can hinder the system's performance, as it is responsible for maintaining the desired speed. Lastly, malfunctions in the electronic control module (ECM) can significantly impact the cruise control system's operation. By understanding these common problems, you can take the first steps in diagnosing the issue and potentially resolve it yourself before consulting a mechanic.

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

When it comes to a malfunctioning cruise control in a 2024 Toyota Prius Prime, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unexpected acceleration or deceleration, creating a significant safety hazard on the road. This unpredictability not only endangers the driver and passengers but also poses risks to other road users. Moreover, neglecting this problem can result in increased fuel consumption, as the vehicle may not maintain optimal speed efficiently. Over time, this can lead to further complications, potentially damaging other components of the vehicle and resulting in more costly repairs. Therefore, it is crucial to take immediate action by seeking professional assistance to diagnose and repair the cruise control system. By doing so, you ensure not only your safety but also the reliability and performance of your vehicle, enhancing your overall driving experience.

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