2024 Subaru Ascent Cruise Control Isn't Working

Fixing Cruise Control Issues in the 2024 Subaru Ascent

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Reviewed by
Bo Fader
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 Subaru Ascent 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.

What are the initial diagnostic steps to take when the cruise control isn't working on a 2024 Subaru Ascent?

When your 2024 Subaru Ascent's cruise control isn't functioning, start with the simplest solutions before delving into more complex diagnostics. Begin by checking the cruise control fuse; a blown fuse is a common culprit that can easily be replaced. Next, inspect the cruise control buttons on the steering wheel to ensure they are responsive and not stuck, as this can hinder operation. Following that, verify the speed sensor's functionality, since it plays a crucial role in the cruise control system by monitoring vehicle speed. If these initial checks do not resolve the issue, use a diagnostic scanner to look for any error codes that may indicate specific problems within the system. Additionally, ensure that your brake lights are operational, as a malfunctioning brake light switch can prevent cruise control from engaging. Lastly, inspect the vacuum lines for any signs of leaks or damage, as these can significantly impact the performance of the cruise control system. By systematically addressing these areas, you can effectively troubleshoot and potentially resolve the cruise control issue on your Subaru Ascent.

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

When the cruise control in your 2024 Subaru Ascent ceases to function, it’s essential to consider several common issues that could be at play. One of the primary culprits is a faulty cruise control switch, which may prevent the system from engaging properly. Additionally, a blown fuse within the cruise control circuit can disrupt its operation, so checking the fuses is a good first step. Another critical component to inspect is the brake pedal switch; if this switch is malfunctioning, it may incorrectly signal the system to disengage whenever the brake is applied. Furthermore, issues with the speed sensor can hinder the cruise control's ability to maintain a steady speed, leading to erratic behavior. Lastly, problems with the throttle control system can also affect the cruise control's performance, making it difficult to sustain the desired speed. By systematically checking these components, you can effectively troubleshoot and potentially resolve the issues with your cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2024 Subaru Ascent?

When it comes to a malfunctioning cruise control in a 2024 Subaru Ascent, the urgency of addressing the issue cannot be overstated. A faulty cruise control system can lead to unexpected acceleration or deceleration, significantly increasing the risk of accidents and compromising driver safety. Moreover, a malfunction can detract from the overall driving experience, making it challenging to maintain a consistent speed, which can lead to fatigue during long drives. Timely intervention is crucial not only for safety but also for maintaining the vehicle's performance; neglecting the issue may result in further damage to the cruise control system or related components. It is advisable to conduct a diagnostic check with a qualified mechanic to pinpoint the root cause of the malfunction and determine the necessary repairs. Additionally, consulting the vehicle's manual or reaching out to the manufacturer can provide essential guidance on the urgency of the situation and the best course of action. In summary, addressing cruise control issues promptly is vital for ensuring a safe and enjoyable driving experience in your Subaru Ascent.

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