what is auto vehicle hold on subaru

3 min read 25-12-2024

Subaru's Auto Vehicle Hold (AVH) system is a driver-assistance feature designed to enhance convenience and safety, particularly in stop-and-go traffic or on inclines. This article will explore what AVH is, how it works, its benefits, and potential limitations. Understanding this feature can significantly improve your driving experience with your Subaru.

Understanding Auto Vehicle Hold (AVH)

Auto Vehicle Hold is a system that automatically engages your parking brake when the vehicle comes to a complete stop. This eliminates the need to manually hold the brake pedal, reducing driver fatigue and enhancing comfort. Crucially, it also prevents unintended rollback on hills. It’s a helpful feature for drivers of all skill levels, but particularly beneficial in challenging driving conditions.

How Auto Vehicle Hold Works

The system uses sensors to detect when your vehicle has completely stopped. Once stationary, AVH automatically activates the electronic parking brake. When you're ready to move, simply press the accelerator pedal. The system will automatically release the brake, allowing you to proceed smoothly.

Sensor Activation: Sensors monitor speed and brake pedal engagement.
Automatic Engagement: Once speed reaches zero, the electronic parking brake engages.
Automatic Release: Pressing the accelerator overrides the system, releasing the brake.

Benefits of Using Auto Vehicle Hold

The benefits of using Subaru's AVH system extend beyond simple convenience:

Reduced Driver Fatigue: Eliminates the need to constantly hold the brake pedal, especially in heavy traffic.
Improved Safety: Prevents accidental rollbacks on hills or inclines, improving safety and reducing the risk of accidents.
Enhanced Comfort: Provides a more relaxed driving experience, especially during stop-and-go commutes.
Increased Fuel Efficiency: Prevents unnecessary idling and brake application, potentially contributing to better fuel economy.

How to Activate and Deactivate Auto Vehicle Hold

The exact steps for activating and deactivating AVH may vary slightly depending on your Subaru model and year. Consult your owner's manual for specific instructions. However, generally, you'll find a button (often labeled "AVH" or a similar designation) on the center console near the gear shifter. Pressing this button typically toggles the system on and off.

Note: Some models may have an integrated display showing the AVH status.

Potential Limitations of Auto Vehicle Hold

While AVH offers numerous advantages, it's crucial to understand its limitations:

Steep Inclines: In extremely steep conditions, the system might struggle to hold the vehicle completely still. Always exercise caution and use additional braking if needed.
System Malfunction: Like any electronic system, AVH can malfunction. Regular vehicle maintenance is recommended to ensure proper operation.
Driver Awareness: Remember, AVH is a driver-assistance system, not a replacement for safe driving practices. Always be vigilant and prepared to take manual control of your vehicle.

Frequently Asked Questions (FAQs) about Subaru Auto Vehicle Hold

Q: What happens if my battery dies while AVH is engaged?

A: Most Subaru models will automatically release the electronic parking brake if the battery power becomes critically low. However, it's important to be aware of this possibility and plan accordingly.

Q: Can I use AVH on all road surfaces?

A: While AVH works effectively on most surfaces, extreme conditions like icy or very loose surfaces might affect its performance. Use caution and adjust your driving accordingly.

Q: Is it necessary to keep AVH always on?

A: Whether or not to leave AVH activated is a matter of personal preference. Some drivers prefer to keep it always on for the added safety and convenience, while others may disable it in specific situations.

Conclusion: Embracing the Convenience and Safety of AVH

Subaru's Auto Vehicle Hold system represents a significant advancement in driver-assistance technology. By understanding its function, benefits, and limitations, you can effectively utilize this feature to enhance both the comfort and safety of your driving experience. Always refer to your owner's manual for model-specific details and recommendations. Remember that AVH is a valuable tool, but safe driving practices remain paramount.