2025-2026 Dodge RAM 1500 2-Wheel Drive Auto Start Stop Eliminator | Plug & Play

This plug-and-play memory harness is for the 2025–2026 Dodge RAM 1500. It stores the last stop-start setting you chose, so if you turned Engine Stop-Start (ESS) 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, 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 Dodge RAM 1500 models it fits

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

• Dodge RAM 1500: 2025–2026

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

Engine Stop-Start (ESS) 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.

What to expect

• Keeps the original switch fully functional.
• Fully reversible: unplug it and the vehicle returns to factory behavior.
• 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.

Things that already block an auto stop

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.

A note on the battery

If the stop-start indicator shows the system as unavailable, test the battery before anything else. On stop-start vehicles that is the most common cause. A replacement should match the original specification (AGM or EFB), and some manufacturers call for a battery monitor reset after the swap.

Typical reasons to keep it off

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.

Before blaming the module

If a "stop-start unavailable" or similar message appears, check the battery first. A battery that tests weak, a recent battery replacement that was not registered where the manufacturer requires it, or a fault in the battery current sensor can all disable the system. Clear up those issues before judging how the module works, because it cannot hold a setting the vehicle refuses to accept.

Connecting it

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. 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.

Confirm these points

• 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 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.

Warranty and returns

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.