2022 Toyota Prius Prime Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2022 Toyota Prius Prime 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 2022 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 2022 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 2022 Toyota Prius Prime?

To effectively diagnose the cruise control issue in your 2022 Toyota Prius Prime, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse, as a blown fuse can easily disrupt functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can lead to engagement problems. Following this, verify the speed sensor's performance, as it plays a crucial role in maintaining your vehicle's speed. Utilizing an OBD-II scanner to check for error codes can provide insights into any underlying issues within the cruise control system. Additionally, ensure that your brake lights are functioning properly, as they are interconnected with the cruise control mechanism; malfunctioning brake lights can prevent the system from engaging. Finally, inspect the wiring connections associated with the cruise control system for any signs of damage or loose connections. By following this diagnostic approach, you can efficiently identify the root cause of the cruise control issue and take appropriate action to resolve it.

What are the common problems that could cause the cruise control to stop working in a 2022 Toyota Prius Prime?

When the cruise control in your 2022 Toyota Prius Prime ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue. One frequent culprit is a faulty speed sensor, which is essential for the cruise control system to accurately gauge your vehicle's speed. If this sensor malfunctions, the system may fail to engage or maintain speed. Another common issue is related to the brake light switch; if this switch is defective, it can prevent the cruise control from disengaging when you apply the brakes, leading to operational failures. Additionally, problems with the throttle control system, such as a malfunctioning throttle position sensor, can hinder the cruise control's ability to maintain a steady speed. Electrical issues, including blown fuses or wiring problems, can also disrupt the cruise control module's functionality. Lastly, software glitches within the cruise control system can lead to erratic behavior or complete failure. By systematically checking these components, you can identify and potentially resolve the issues affecting your cruise control system, restoring its functionality and enhancing your driving experience.

How urgent is it to address the malfunctioning cruise control in a 2022 Toyota Prius Prime?

When dealing with a malfunctioning cruise control in a 2022 Toyota Prius Prime, the urgency of the situation cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses significant safety risks, especially on busy highways or during heavy traffic. Moreover, neglecting these symptoms can result in increased fuel consumption, further straining your budget, and may even lead to more severe damage to the vehicle's components over time. Therefore, it is crucial to prioritize the diagnosis and repair of the cruise control system, ideally by a qualified mechanic or an authorized Toyota service center. Addressing these issues promptly not only ensures your safety but also maintains the efficiency and overall performance of your Prius Prime, allowing you to enjoy a smoother and more reliable driving experience.

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