2020-2025 Toyota RAV4 A-OFF Start Stop Eliminator | 6-Inch Memory Harness

Fits the 2020–2025 Toyota RAV4. The 6-inch 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 6-inch harness plugs in between the A-OFF switch and its factory connector; the short lead keeps the module tucked behind the panel.

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):

• Toyota RAV4: 2020–2025

The listing is written around the fifth-generation (2019-up) RAV4. The table does not separate trims; what matters is that the vehicle has factory stop-start and the connector shown in the photos.

How Stop & Start behaves from the factory

Stop & Start 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.

Scope of the module

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

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.

When the engine will not auto-stop anyway

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.

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.

Connecting it

The 6-inch harness plugs in between the A-OFF switch and its factory connector; the short lead keeps the module tucked behind the panel. Because it is plug-in only, removal is the reverse: unplug the module and reconnect the factory connectors directly. Keep the original clips and trim fasteners if you remove a panel to reach the connector.

Why owners turn it off

Drivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a compact 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.

Check before you order

• Model year and model match a row in the table above (2020–2025 Toyota RAV4).
• Your Toyota RAV4 has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.
• No aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.
• The connector at your install point matches the one in the product photos.
• 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

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.