2012 Subaru Tribeca Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2012 Subaru Tribeca 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 2012 Subaru Tribeca 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 2012 Subaru Tribeca?

To effectively diagnose a cruise control issue in your 2012 Subaru Tribeca, start with a systematic approach that prioritizes simpler fixes before delving into more complex diagnostics. Begin by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the brake pedal switch, which is essential for deactivating cruise control when the brake is engaged; ensure it is undamaged and that the brake lights are operational. If the speedometer is also malfunctioning, the speed sensor may be at fault, requiring a thorough inspection of its condition and the associated wiring. For vehicles with vacuum-actuated systems, examine the vacuum actuator and hoses for any signs of wear or damage. Utilizing a code reader or scanner can provide valuable insights into any trouble codes that may indicate specific issues, allowing for targeted repairs. Additionally, inspect all electrical connections and wiring related to the cruise control system for any signs of corrosion or damage. After completing these checks and making necessary repairs, take the vehicle for a test drive to confirm that the cruise control is functioning properly. If your Subaru is equipped with advanced systems like Subaru EyeSight®, ensure they are calibrated correctly, as this can also impact cruise control performance. By following this diagnostic approach, you can efficiently identify and resolve cruise control issues in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2012 Subaru Tribeca?

When dealing with cruise control issues in a 2012 Subaru Tribeca, it's essential to understand the common problems that may arise. A blown fuse is often the first culprit to check, as it protects the cruise control system from electrical faults. If the fuse is intact, the next step is to inspect the brake pedal switch, which is critical for disengaging the cruise control when the brake is applied; a malfunction here can prevent the system from activating. Additionally, the speed sensor plays a vital role by relaying speed data to the cruise control system, and any failure in this component can lead to both cruise control and speedometer issues. Electrical or wiring problems, such as damaged wires, can also disrupt the system's functionality. For those with advanced systems like Subaru EyeSight®, calibration issues or problems with the cameras may affect performance. Lastly, while less common in newer models, older systems may experience failures related to vacuum actuators or hoses. By systematically checking these components, DIYers can effectively diagnose and address cruise control problems in their Subaru Tribeca.

How urgent is it to address the malfunctioning cruise control in a 2012 Subaru Tribeca?

While a malfunctioning cruise control in a 2012 Subaru Tribeca may not seem urgent from a safety standpoint, it is crucial to recognize the potential consequences of ignoring this issue. The convenience and comfort that cruise control provides, especially during long drives, can significantly impact driver fatigue and overall driving experience. Moreover, a malfunctioning system could be indicative of underlying electrical or mechanical problems that may affect other critical vehicle functions. For instance, a blown fuse or a failing brake pedal switch not only disrupts cruise control but can also compromise safety features like brake lights. Additionally, issues with the speed sensor can lead to inaccurate speed readings, which could escalate into more severe mechanical failures if left unaddressed. Therefore, while it may be safe to drive without cruise control, it is advisable to have a professional inspection to diagnose and rectify the root cause of the malfunction. This proactive approach can prevent further complications and ensure the vehicle remains in optimal condition, safeguarding both the driver and passengers.

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