2023 Toyota Prius AWD-e Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2023 Toyota Prius AWD-e

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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 2023 Toyota Prius AWD-e 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 2023 Toyota Prius AWD-e 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 2023 Toyota Prius AWD-e?

When troubleshooting the non-functioning cruise control in your 2023 Toyota Prius AWD-e, it's essential to adopt a systematic diagnostic approach. 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 to ensure they are responsive and not stuck, as this can prevent engagement. Following this, verify the functionality of the speed sensor, which plays a crucial role in relaying the vehicle's speed to the cruise control system; a malfunction here can lead to issues. Utilizing a diagnostic scanner to check for error codes can provide insights into any underlying problems. Additionally, examine the brake and clutch switches, as faulty switches can inhibit the cruise control from activating. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as these can disrupt communication between components. By methodically following these steps, you can effectively diagnose and potentially resolve the cruise control issues in your Prius.

What are the common problems that could cause the cruise control to stop working in a 2023 Toyota Prius AWD-e?

When troubleshooting the cruise control system in a 2023 Toyota Prius AWD-e, 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, resulting in an inability to engage or maintain cruise control. Additionally, a malfunctioning brake light switch can disrupt the system, as it is designed to deactivate cruise control when the brakes are applied. Issues with the throttle control system, such as a stuck throttle or problems with the throttle position sensor, can also impede the cruise control's functionality. Furthermore, electrical problems, including blown fuses or wiring issues, may prevent the cruise control module from operating correctly. Lastly, software glitches within the vehicle's onboard computer can affect cruise control performance, potentially requiring a reset or update. If you encounter issues with your cruise control, it's advisable to conduct a thorough inspection or consult a qualified mechanic to identify and resolve the specific problem.

How urgent is it to address the malfunctioning cruise control in a 2023 Toyota Prius AWD-e?

Addressing a malfunctioning cruise control in a 2023 Toyota Prius AWD-e is crucial for both safety and vehicle performance. When cruise control fails, it can lead to unpredictable acceleration or deceleration, creating a significant safety hazard on the road. This unpredictability not only compromises your safety but also that of other drivers. Additionally, a malfunctioning system can detrimentally affect your driving experience, leading to decreased fuel efficiency and overall vehicle performance. Ignoring these issues can result in increased fuel consumption and additional wear on your vehicle, ultimately leading to more costly repairs down the line. By promptly addressing cruise control malfunctions, you not only enhance your safety but also protect your vehicle from further damage, making it a wise choice for any DIY enthusiast looking to maintain their car effectively.

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