2006 Subaru Legacy Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 Subaru Legacy and How to Fix Them

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Reviewed by

Devin Cabugcal

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2006 Subaru Legacy cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.

Sensor: A faulty sensor can lead to incorrect readings, causing issues with engine performance or triggering warning lights on the dashboard.
Control Module: A faulty control module can result in 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 acceleration and poor engine 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 best Subaru repair shops?

RepairPal Certified shops can diagnose and repair your 2006 Subaru Legacy electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How urgent is it to address the non-functioning cruise control in a 2006 Subaru Legacy?

When it comes to the non-functioning cruise control in your 2006 Subaru Legacy, understanding the urgency of the situation is crucial for both safety and vehicle performance. While the car can still be driven without cruise control, the convenience it offers during long trips cannot be overlooked. A flashing cruise control light is a clear indicator of a mechanical or electrical issue that requires immediate attention; ignoring this warning could lead to further complications. Although the absence of cruise control may not directly impair the vehicle's drivability, it can affect acceleration and overall driving enjoyment. Additionally, the root cause of the cruise control malfunction could be linked to other underlying problems, such as vacuum leaks or corrosion, which, if left unaddressed, may lead to more significant damage over time. Therefore, while it may not be an emergency, it is advisable to prioritize fixing the cruise control system to ensure your Subaru Legacy remains safe, reliable, and enjoyable to drive.

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