what is auto vehicle hold on a subaru

2 min read 22-12-2024

Subaru's Auto Vehicle Hold (AVH) system is a convenient feature designed to simplify driving, particularly in stop-and-go traffic or on inclines. It essentially acts as an electronic parking brake, automatically engaging when the vehicle comes to a complete stop and releasing when you accelerate. This article will explain how AVH works, its benefits, and potential limitations.

How Subaru's Auto Vehicle Hold Works

The AVH system uses sensors to detect when your Subaru has stopped completely. Once stationary, the system automatically engages the brakes, holding the vehicle in place. This prevents you from needing to manually apply the parking brake, especially helpful on hills.

To disengage AVH, simply press the accelerator pedal. The system will automatically release the brakes, allowing you to drive forward or reverse. You'll feel a slight release as the brakes disengage. Some models also allow you to disengage using a button.

AVH Activation and Deactivation

Activation: AVH typically activates automatically when the vehicle comes to a complete stop. The indicator light on the dashboard will illuminate to show that the system is engaged.
Deactivation: Pressing the accelerator pedal is the primary way to disengage AVH. Some Subaru models also provide a button to manually turn the system on or off. Consult your owner's manual for specifics on your model.

Benefits of Using Auto Vehicle Hold

The advantages of utilizing Subaru's Auto Vehicle Hold system are numerous:

Reduced Driver Fatigue: Eliminating the need to constantly apply and release the parking brake reduces driver fatigue, especially in heavy traffic.
Improved Convenience: AVH simplifies driving, particularly on hills or inclines. It prevents the vehicle from rolling backward or forward unexpectedly.
Enhanced Safety: By holding the vehicle securely in place, AVH helps to enhance safety, especially in situations where the driver's foot might slip off the brake pedal.

Potential Limitations of Auto Vehicle Hold

While AVH is generally a helpful feature, there are some potential limitations:

System Limitations: AVH may not function correctly in all driving conditions. For example, on extremely steep inclines or slippery surfaces, the system might not be able to hold the vehicle effectively. Always use caution and supplement with the regular parking brake when necessary.
Unexpected Behavior: Occasionally, the system might engage or disengage unexpectedly. Understanding how your vehicle's specific system operates is key to avoiding surprises. Refer to your owner's manual.
Battery Drain (Potential): While unlikely with modern systems, prolonged use of AVH, especially with the engine off, could contribute to a slightly faster battery drain.

Troubleshooting Common AVH Issues

If you experience problems with your Subaru's AVH system:

Check the indicator light: Make sure the AVH indicator light is illuminated when the system should be engaged.
Review your owner's manual: Consult your owner's manual for troubleshooting steps and specific instructions for your model.
Contact your Subaru dealership: If the problem persists, schedule a service appointment with your local Subaru dealership. They can diagnose and repair any issues with the AVH system.

Conclusion

Subaru's Auto Vehicle Hold system is a valuable addition to many Subaru models, offering convenience, reduced driver fatigue, and enhanced safety. Understanding how it works, its limitations, and how to troubleshoot common issues will allow you to maximize its benefits and safely enjoy this helpful driving feature. Always remember to consult your owner's manual for model-specific details and instructions.