2019 Subaru Outback Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 Subaru Outback and How to Fix Them

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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 2019 Subaru Outback 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 steps to diagnose the cruise control issue in a 2019 Subaru Outback?

To effectively diagnose a cruise control issue in a 2019 Subaru Outback, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse to ensure it is intact, as a blown fuse can easily disrupt the system. Next, examine the cruise control buttons on the steering wheel for any signs of damage or malfunction, as these controls are essential for operation. Utilizing an OBD-II scanner can provide valuable insights by revealing any error codes that may indicate specific problems within the cruise control system. Additionally, check the speed sensors, as they are critical for the cruise control to function correctly. It’s also important to verify that the brake lights are operational, since a faulty brake light switch can inadvertently disable the cruise control. If these preliminary checks do not resolve the issue, proceed to test the cruise control module to ensure it is functioning properly and sending the correct signals. Lastly, inspect all wiring connections for security and signs of corrosion or damage, as these can also impact system performance. If the problem persists after these steps, seeking assistance from a professional mechanic or an authorized Subaru service center is recommended for a thorough diagnosis and repair. This methodical approach not only helps in identifying the issue but also saves time and resources in the troubleshooting process.

What are the common problems that could cause the cruise control to stop working in a 2019 Subaru Outback?

When troubleshooting cruise control issues in a 2019 Subaru Outback, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty brake light switch, which can prevent the cruise control from engaging since it is designed to deactivate when the brake pedal is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to failure. A blown fuse in the cruise control circuit is another simple yet often overlooked problem that can halt its operation; checking and replacing the fuse may quickly resolve the issue. Furthermore, malfunctions in the throttle control system, particularly with the throttle position sensor, can hinder the cruise control's performance. Lastly, if the Electronic Control Module (ECM) is experiencing problems, it can affect various vehicle functions, including cruise control. By systematically addressing these potential issues, you can effectively troubleshoot and restore functionality to your Subaru Outback's cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2019 Subaru Outback?

Addressing a malfunctioning cruise control in a 2019 Subaru Outback is of utmost importance due to the safety risks it poses. A faulty system can lead to unexpected acceleration or deceleration, which can result in dangerous driving conditions and increase the likelihood of accidents. Additionally, neglecting this issue can lead to higher fuel consumption, as the vehicle may not maintain a consistent speed, ultimately affecting your wallet. Furthermore, ignoring the symptoms of a malfunctioning cruise control can lead to more significant damage to other vehicle components, resulting in costly repairs down the line. Therefore, it is crucial to seek professional assistance as soon as you notice any irregularities in the cruise control system to ensure your safety and maintain the vehicle's overall performance.

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2019 Subaru Outback Cruise Control Issues & Repairs