2023-2025 Subaru Outback Auto Start Stop Eliminator | Fused Memory Harness

Fits the 2023–2025 Subaru Outback. The fused memory harness remembers the position of the stop-start button between drives, so the engine no longer shuts off at the first red light after every restart unless you want it to. The harness connects at the stop-start switch circuit and includes an inline fuse on its power lead.

It does not delete the feature. Turning stop-start back on is the same button press as before, and the module will remember that too. Removing it returns the vehicle to its original default.

Covered model years

Listed applications (each row is a 100% fitment match for the factory connector this part uses):

• Subaru Outback: 2023–2025

The listing is written around the sixth-generation (2020-up) Outback. Trim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.

How factory stop-start works on the Subaru Outback

Auto Start Stop is designed to default to on. The off switch (usually marked with an "A" inside a circular arrow) cancels it for the current drive. At the next start the system is armed again. That reset is intentional on the manufacturer's side, and it is the only behavior this module changes.

Installation and removal

The harness connects at the stop-start switch circuit and includes an inline fuse on its power lead. Work with the ignition off. Seat each connector until its lock engages, then secure the module with the supplied ties or tape so it cannot rattle or touch pedals, steering parts or anything hot. Start the vehicle, press the stop-start button once, then restart to confirm the choice is held.

Battery and charging

Most stop-start systems watch battery condition closely through a sensor on the negative terminal. When the battery ages, the system quietly stops auto-stopping long before the battery fails to crank. Keeping the original battery type (AGM or EFB) and a clean, tight ground connection avoids a lot of confusion about why the system behaves differently from week to week.

Troubleshooting notes

A warning light that appears after installation usually means a connector is not fully seated. Switch the ignition off, reseat both ends until the locks click, and test again. If the light stays on, remove the module and confirm the vehicle is fault-free on its own before contacting support.

If stop-start is not engaging

Auto stop needs several conditions at once: a warm engine, enough battery charge, moderate cabin heating or cooling demand, and the vehicle fully stopped with the brake held. If any is missing, the engine keeps running. The module only remembers the button state; the factory controller still decides whether a stop is allowed.

What to expect

• It does not change engine power, transmission shifts, emissions calibration or fuel trims.
• It remembers the last stop-start setting through a key cycle.
• It leaves the factory button working, so you can turn stop-start back on whenever you want.
• It does not write anything to the vehicle's modules, and removing it restores the stock default.

Where owners notice the difference

Some owners only want stop-start off in certain seasons or on certain trips, such as towing a trailer or crawling through summer traffic with the A/C working hard. Because the module remembers whatever you chose last, it works both ways: leave the system off for a week, then switch it back on with the factory button and it stays on.

Fitment check

• Model year and model match a row in the table above (2023–2025 Subaru Outback).
• Your Subaru Outback has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.
• The connector at your install point matches the one in the product photos.
• No aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.
• The battery and charging system test good and no warning lights are on.
• If you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.

Ordering details

Standard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.