2009 Subaru Tribeca Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 Subaru Tribeca 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 2009 Subaru Tribeca 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 steps to diagnose the cruise control issue in a 2009 Subaru Tribeca?

To effectively diagnose a cruise control issue in a 2009 Subaru Tribeca, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can often be the simplest explanation for malfunction. Next, examine the control module, sensor, and switch for any visible signs of damage or wear, as these components are frequently the culprits behind cruise control failures. It's also crucial to assess the throttle actuation; ensure that the throttle is operating smoothly without any obstructions that could hinder cruise control functionality. Additionally, investigate the traction control system, since any issues here can directly affect the cruise control operation, often indicated by a flashing cruise control light. Utilizing a diagnostic scanner to check for error codes can provide valuable insights, as certain codes may disable the cruise control system altogether. Lastly, ensure that the engine is in good working order, as engine problems can send incorrect data to the ECU, impacting cruise control performance. If these steps do not resolve the issue, consulting a qualified technician is advisable for a thorough diagnosis and repair recommendations. By following this structured diagnostic approach, you can efficiently identify and address the root cause of the cruise control problem in your Subaru Tribeca.

How urgent is it to address the malfunctioning cruise control in a 2009 Subaru Tribeca?

Addressing the malfunctioning cruise control in a 2009 Subaru Tribeca is of significant urgency due to the potential consequences of neglecting this issue. A malfunctioning cruise control system may not only indicate underlying mechanical or electrical problems but can also lead to more severe performance issues, such as erratic acceleration or inaccurate speed readings. Furthermore, ignoring these symptoms can trigger additional warning lights, including the check engine and ABS lights, which may signal more critical issues that require immediate attention. While it may be safe to continue driving with a malfunctioning cruise control, doing so can compromise your vehicle's overall performance and safety. Therefore, it is crucial to diagnose and repair the cruise control system promptly to avoid further complications and ensure a smooth and safe driving experience.

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