2022-2026 Toyota Tundra Auto Start Stop Eliminator | Plug & Play

A plug-and-play memory harness for the 2022–2026 Toyota Tundra. Out of the factory, Stop & Start comes back on at every key cycle. This module remembers your last choice and sends it again at the next start. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.

Nothing is reprogrammed in the engine computer. The module only stands in for the button press you would otherwise make after every start, and it comes out without leaving a trace.

Which Toyota Tundra models it fits

The fitment table for this SKU lists the following, each marked as a 100% fitment match:

• Toyota Tundra: 2022–2026

For reference, the Toyota Tundra in these years is a full-size pickup offered with 3.5L twin-turbo V6 and i-FORCE MAX hybrid powertrains, most of the driving it sees is towing, job-site hauling and daily driving. The listing is written around the third-generation (2022-up) Tundra. Trim levels are not split out in the table, so confirm that your vehicle has the stop-start button before ordering.

What the factory system does

On the Toyota Tundra, Stop & Start shuts the engine down at a stop and fires it back up as the brake is released. You can switch it off with the dash button, but the choice is not saved. The next ignition cycle brings the default back. The module keeps the choice you made instead.

Day-to-day use

Pressing the same button on every drive is what wears on owners. People who tow, plow, idle in pickup lines, creep through heavy traffic or simply want the engine running at a light end up making the same press dozens of times a week. On the Toyota Tundra, the module turns that into a one-time choice you can still change whenever you want.

If stop-start is not engaging

Even with Stop & Start 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.

What changes after installation

• 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.

Keep the battery healthy

The module draws its power from the vehicle and does not change charging behavior. If your Toyota Tundra sits for long periods, the same rules apply as without it: a maintainer helps, and a battery that tests weak should be replaced with the type specified for stop-start vehicles (usually AGM or EFB).

Installing the plug-and-play memory harness

It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Disconnect nothing else and splice nothing. Once both plugs are locked, tuck the harness where it will not be pinched when the panel goes back on. Test by switching Stop & Start off, cycling the ignition and checking the indicator.

If something does not look right

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.

Check before you order

• Model year and model match a row in the table above (2022–2026 Toyota Tundra).
• Your Toyota Tundra 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.
• 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.
• If you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.

Shipping, returns and warranty

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.