2026 Honda Passport Auto Start Stop Eliminator

This inline memory harness is for the 2026 Honda Passport. It stores the last stop-start setting you chose, so if you turned Auto Idle Stop off on one drive, it stays off the next time you start the engine. It plugs in line with the factory connector named in the instructions. Both ends are factory-style plugs, so nothing is cut or spliced.

The factory button stays in place and still works. Press it and the module stores the new choice. Unplug the module and the vehicle goes back to stock behavior.

Vehicles and years covered

This part is listed for these vehicles, all marked 100% fitment match:

• Honda Passport: 2026

The listing is written around the third-generation (2026-up) Passport. The table does not separate trims; what matters is that the vehicle has factory stop-start and the connector shown in the photos.

How Auto Idle Stop behaves from the factory

With Auto Idle Stop active, the engine shuts off when the vehicle comes to a stop and restarts when you lift off the brake or press the accelerator. The off button is a manual override for that drive only. Turn the ignition off and back on, and the system defaults to on again, so drivers who prefer it off end up pressing the button at the start of every trip.

Where it connects

It plugs in line with the factory connector named in the instructions. Both ends are factory-style plugs, so nothing is cut or spliced. 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.

Before blaming the module

If the setting is not remembered, check that the module was installed with the ignition off and that the connector clicked into place. Then press the factory button once, switch the vehicle off, close the doors, give the electronics time to shut down, and start again. If it still resets, contact support with the year, trim and a photo of the connector.

Where owners notice the difference

Drivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a two-row midsize SUV, the climate system may run at reduced output while the engine is off, and quick moves into traffic feel slower when the engine has to fire first. If those are your reasons, you probably press the button on every drive now. With the module, you press it once.

What the module does and does not do

• Stores the stop-start choice you made last and repeats it at the next start.
• Fully reversible: unplug it and the vehicle returns to factory behavior.
• No tune, no reflash, no change to horsepower or shift points.
• Keeps the original switch fully functional.

Conditions the factory system checks

Even with Auto Idle Stop enabled, the engine control logic only stops the engine when conditions allow it. Typical blockers are a low battery state of charge, an engine that has not reached operating temperature, heavy heating or A/C demand, steering input, an open door or unlatched seatbelt, and some drive modes. If the system never seems to stop the engine, one of these is usually the reason, and the module does not change that logic.

A note on the battery

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.

Check before you order

• Model year and model match a row in the table above (2026 Honda Passport).
• Your Honda Passport has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.
• The battery and charging system test good and no warning lights are on.
• 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.
• If you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.

Shipping and support

Free standard shipping covers the contiguous US, with dispatch in 1–2 business days and 3–4 days on the road after that. You have 45 days to request a return (pre-approval required, 20% restocking fee, buyer-paid return shipping). The module is backed by a 3-year limited warranty. For order or fitment questions, write to support@automotivebypass.com between 9 and 5 Pacific, Monday through Friday.