2025-2026 Dodge RAM 1500 4-Wheel Drive Auto Start Stop Eliminator | Plug & Play

Built for the 2025–2026 Dodge RAM 1500, this plug-and-play memory harness keeps Engine Stop-Start (ESS) in whatever state you left it. Press the button once, and the setting carries over to 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.

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.

Covered model years

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

• Dodge RAM 1500: 2025–2026

For reference, the Dodge RAM 1500 in these years is a full-size pickup offered with 3.6L V6 and 5.7L HEMI V8 engines with eTorque, earlier 3.0L EcoDiesel builds and the 3.0L Hurricane turbo six on 2025-up trucks. 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

Each start of the Dodge RAM 1500 begins with Engine Stop-Start (ESS) enabled. The switch on the dash can disable it, but only until the key is cycled. This module records the switch position and repeats it after the restart, which is the entire job it does.

Before blaming the module

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.

Installation and removal

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 Engine Stop-Start (ESS) off, cycling the ignition and checking the indicator.

If stop-start is not engaging

The factory system will skip an auto stop for many reasons: battery charge below its threshold, cold coolant, high climate-control load, a steep grade, the hood or driver door open, or a 4WD or tow mode on vehicles that have them. Those checks stay in control after this module is installed. It does not force stops and it does not bypass any of those safety inputs.

Scope of the module

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

Why owners turn it off

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 Dodge RAM 1500, the module turns that into a one-time choice you can still change whenever you want.

A note on the battery

The module draws its power from the vehicle and does not change charging behavior. If your Dodge RAM 1500 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).

Check before you order

• Model year and model match a row in the table above (2025–2026 Dodge RAM 1500).
• Your Dodge RAM 1500 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 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.
• 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.