How to Reset Mpg on Subaru Outback

Resetting the MPG (miles per gallon) on your Subaru Outback is simple and helps you track fuel efficiency accurately. Whether you’re starting a new trip or monitoring your vehicle’s performance, knowing how to reset the trip meter ensures you get reliable data every time.

This is a comprehensive guide about How to Reset MPG on Subaru Outback.

Key Takeaways

• Understand the difference between trip meters and average MPG: Trip A and Trip B track distance and fuel use separately, while average MPG shows overall efficiency over time.
• Use the steering wheel controls for easy access: Most Subaru Outback models from 2010 onward allow you to reset MPG using buttons on the steering wheel.
• Reset MPG after refueling for accurate tracking: This helps you monitor how your driving habits and fuel type affect efficiency.
• Know your model year’s dashboard layout: Older models may require using the instrument cluster buttons instead of steering wheel controls.
• Reset individual trip meters or both at once: You can reset Trip A, Trip B, or both depending on your preference and driving goals.
• Use MPG data to improve fuel economy: Tracking trends over time can help you adjust driving habits for better efficiency.
• Consult your owner’s manual for model-specific steps: Features may vary slightly between Outback trims and years.

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How to Reset MPG on Subaru Outback: A Complete Guide

Whether you’re planning a long road trip, trying to improve your fuel efficiency, or just want to keep tabs on your Subaru Outback’s performance, knowing how to reset the MPG (miles per gallon) is a handy skill. The MPG display on your dashboard gives you real-time and average fuel economy data, helping you understand how your driving habits impact gas consumption. Resetting this data allows you to start fresh—whether after filling up your tank or at the beginning of a new journey.

The good news? Resetting the MPG on a Subaru Outback is straightforward, even if you’re not a car expert. Most models from 2010 onward come equipped with intuitive steering wheel controls and digital instrument clusters that make accessing and resetting trip data a breeze. However, the exact steps can vary slightly depending on your model year and trim level. In this guide, we’ll walk you through the process step by step, explain why resetting MPG matters, and share tips to help you get the most out of your vehicle’s fuel economy features.

By the end of this article, you’ll not only know how to reset MPG on your Subaru Outback, but you’ll also understand how to use that data to drive smarter, save money, and keep your vehicle running efficiently. Let’s dive in.

Understanding Your Subaru Outback’s MPG Display

Before you reset the MPG, it’s important to understand what the numbers on your dashboard actually mean. The Subaru Outback typically displays two types of fuel economy data: instantaneous MPG and average MPG. Instantaneous MPG shows your current fuel efficiency in real time—this number changes as you accelerate, brake, or cruise. It’s great for seeing how your immediate driving actions affect fuel use.

Average MPG, on the other hand, calculates your overall fuel efficiency over a set period—usually since the last reset. This is the number most drivers pay attention to when trying to improve their gas mileage. It’s displayed on the multi-information display (MID) in your instrument cluster and is often tied to one of two trip meters: Trip A or Trip B.

What Are Trip A and Trip B?

Your Subaru Outback comes with two trip meters: Trip A and Trip B. These allow you to track distance and fuel consumption separately. For example, you might use Trip A to monitor your daily commute and Trip B for weekend trips. Each trip meter can display its own average MPG, so resetting one doesn’t affect the other.

This dual-trip system is especially useful if you want to compare fuel efficiency across different routes or driving conditions. Say you drive 50 miles to work each week—reset Trip A every Monday and watch how your average MPG changes based on traffic, weather, or tire pressure. Meanwhile, Trip B could track a long road trip, giving you a clear picture of how your Outback performs over hundreds of miles.

Where to Find the MPG Display

The MPG display is located in the center of your instrument cluster, usually just below the speedometer. On newer models (2015 and later), it’s part of a digital screen that also shows gear position, fuel level, and warning lights. Older models may have a simpler LCD display, but the function remains the same.

To view the MPG, you may need to press a button on the steering wheel or instrument panel to cycle through different screens. Look for options like “Trip,” “Fuel Economy,” or “Avg MPG.” Once you’re on the right screen, you’ll see the average MPG for the selected trip meter.

Step-by-Step Guide to Resetting MPG on Subaru Outback

Now that you understand what the MPG display shows, let’s get into the actual process of resetting it. The steps are simple and take less than a minute. We’ll cover the most common method used in Subaru Outback models from 2010 to the present, including those with steering wheel controls.

Method 1: Using Steering Wheel Controls (2010–Present Models)

Most modern Subaru Outbacks come with steering wheel-mounted buttons that let you navigate the instrument cluster menu without taking your hands off the wheel. Here’s how to reset the MPG using this method:

1. Start your vehicle and ensure the engine is running. The display must be active to access the menu.
2. Locate the “Info” or “Display” button on the left side of your steering wheel. This button usually has an icon that looks like a screen or information symbol.
3. Press the “Info” button repeatedly until you see the trip meter screen (Trip A or Trip B) on the instrument cluster.
4. Use the arrow buttons (up/down or left/right) to highlight the trip meter you want to reset (e.g., Trip A).
5. Press and hold the “Enter” or “Set” button (usually in the center of the arrow keys) for 2–3 seconds.
6. Watch for a confirmation message like “Trip A Reset” or see the mileage and MPG values drop to zero.

That’s it! The average MPG for that trip meter is now reset, and you can start tracking fresh data. Repeat the process for Trip B if needed.

Method 2: Using Instrument Cluster Buttons (Older Models)

If your Subaru Outback is from 2009 or earlier, it may not have steering wheel controls for the trip meter. Instead, you’ll use buttons on the instrument cluster itself. Here’s how:

1. Turn the ignition to “On” (you don’t need to start the engine, but the dashboard must be powered).
2. Locate the trip reset button on the instrument cluster. It’s usually a small button near the speedometer labeled “Trip” or “Reset.”
3. Press the button to cycle through Trip A and Trip B until you reach the one you want to reset.
4. Press and hold the button for 2–3 seconds until the trip mileage and MPG reset to zero.

Note: On some older models, holding the button may reset both Trip A and Trip B at the same time. Check your owner’s manual to confirm.

Method 3: Resetting via the Multi-Information Display (2015+ Models)

Newer Subaru Outbacks (2015 and later) often feature a more advanced multi-information display (MID) with a menu system. Here’s how to reset MPG using this interface:

1. Press the “Menu” button on the steering wheel to enter the MID menu.
2. Navigate to “Trip Meter” using the arrow buttons.
3. Select either Trip A or Trip B from the list.
4. Choose “Reset” from the submenu.
5. Confirm the reset when prompted.

This method gives you more control and is especially helpful if you want to reset only one trip meter while keeping the other active.

When and Why You Should Reset MPG

Resetting the MPG isn’t just a technical task—it’s a practical tool for better driving and vehicle maintenance. Here are the most common situations when you should consider resetting your trip meter and average MPG:

After Refueling

The most popular time to reset MPG is right after you fill up your gas tank. This gives you a clean slate to measure how far you can go on a full tank and how efficiently your Outback is burning fuel. For example, if you reset Trip A after filling up and drive 350 miles before the next fill-up, and you used 12 gallons of gas, your average MPG would be approximately 29.2 (350 ÷ 12).

This method is especially useful if you’re comparing different fuel types (regular vs. premium) or testing how tire pressure affects efficiency.

Before a Long Trip

If you’re heading out on a road trip, resetting the MPG helps you track fuel consumption over long distances. You can monitor how your average changes with highway vs. city driving, elevation changes, or cargo load. Some drivers even reset both Trip A and Trip B—one for the outbound journey and one for the return.

After Maintenance or Repairs

After servicing your Outback—such as an oil change, air filter replacement, or tire rotation—resetting the MPG lets you see if the maintenance improved your fuel economy. For instance, a clogged air filter can reduce MPG by up to 10%, so replacing it should show a noticeable improvement in your average.

To Monitor Driving Habits

Your driving style has a big impact on fuel efficiency. Aggressive acceleration, speeding, and frequent braking can lower your MPG significantly. By resetting the trip meter and paying attention to your average over a week or two, you can identify patterns and adjust your habits. For example, if your average MPG drops during rush hour, you might try leaving earlier to avoid traffic.

To Compare Different Routes

Trying to decide between two routes to work? Reset Trip A before taking Route 1 and Trip B before Route 2. Compare the average MPG, travel time, and fuel cost to see which is more efficient. Over time, this data can save you both time and money.

Tips for Accurate MPG Tracking

To get the most reliable fuel economy data from your Subaru Outback, follow these best practices:

Reset at the Pump

Always reset your trip meter immediately after refueling. This ensures you’re measuring a full tank and avoids skewed data from partial fills.

Use the Same Gas Station and Pump

For consistent results, try to fill up at the same station and use the same pump each time. This minimizes variations in fuel quality and pump calibration.

Keep Tires Properly Inflated

Underinflated tires increase rolling resistance and reduce MPG. Check your tire pressure monthly and inflate to the recommended PSI (found on the driver’s door jamb).

Avoid Excessive Idling

Idling burns fuel without moving the car. If you’re stopped for more than 30 seconds (except in traffic), consider turning off the engine.

Use Cruise Control on Highways

Cruise control helps maintain a steady speed, which improves fuel efficiency on long, flat roads. Just be sure to disengage it in hilly or congested areas.

Remove Unnecessary Weight

Extra weight in your trunk or cargo area reduces MPG. Remove items you don’t need, especially heavy ones like tools, sports equipment, or luggage.

Monitor Trends, Not Just Numbers

Don’t obsess over daily fluctuations. Instead, look at weekly or monthly trends. A consistent drop in average MPG could signal a mechanical issue, like a faulty oxygen sensor or dirty fuel injectors.

Troubleshooting Common Issues

Sometimes, resetting the MPG doesn’t work as expected. Here are a few common problems and how to fix them:

MPG Won’t Reset

If pressing the reset button doesn’t work, make sure the ignition is on and the engine is running (or at least in the “On” position). Some models require the vehicle to be in park or neutral. Also, check if the trip meter is already at zero—some systems won’t reset if there’s no data to clear.

Display Shows “—” or “ERR”

This usually means the system can’t calculate MPG due to a sensor issue or low fuel. Try resetting after driving a few miles. If the problem persists, have your vehicle inspected by a Subaru technician.

Steering Wheel Buttons Not Responding

Clean the buttons with a soft cloth and check for dirt or moisture. If they still don’t work, the issue may be electrical. Consult your dealer or a qualified mechanic.

MPG Resets Automatically

Rarely, a software glitch or low battery voltage can cause the trip meter to reset on its own. Check your battery health and consider updating your vehicle’s software at a Subaru service center.

Conclusion

Resetting the MPG on your Subaru Outback is a simple yet powerful way to take control of your vehicle’s fuel efficiency. Whether you’re tracking a road trip, monitoring maintenance impacts, or just trying to save a few bucks at the pump, knowing how to reset Trip A or Trip B gives you valuable insights into your driving habits and vehicle performance.

With just a few button presses—either on your steering wheel or instrument cluster—you can start fresh and gather accurate data that helps you drive smarter. Combine this habit with regular maintenance, proper tire inflation, and mindful driving, and you’ll likely see your average MPG climb over time.

Remember, every gallon saved adds up. By making MPG tracking a regular part of your routine, you’re not only improving your Subaru Outback’s efficiency but also contributing to a cleaner environment and a healthier wallet. So the next time you fill up, take that extra 10 seconds to reset your trip meter. Your future self—and your gas tank—will thank you.

Frequently Asked Questions

How do I reset the MPG on a 2020 Subaru Outback?

Use the steering wheel controls: press the “Info” button to access the trip meter, select Trip A or B, then press and hold the “Enter” button for 2–3 seconds until it resets.

Can I reset both Trip A and Trip B at the same time?

On most models, you must reset each trip meter individually. However, some older Outbacks may reset both when holding the trip button—check your owner’s manual.

Why won’t my MPG reset even after pressing the button?

Ensure the ignition is on and the engine is running. If it still doesn’t work, the system may be locked or there could be a sensor issue—consult a Subaru technician.

Does resetting MPG affect my fuel gauge or warning lights?

No, resetting the trip meter only clears distance and fuel economy data. It does not affect the fuel level sensor, warning lights, or any other vehicle systems.

How often should I reset my MPG?

It’s best to reset after every fuel-up to track efficiency accurately. You can also reset before long trips or after maintenance to monitor changes.

Can I view real-time MPG while driving?

Yes, most Subaru Outback models display instantaneous MPG on the instrument cluster. Use the steering wheel controls to cycle to the fuel economy screen.