Why RAM 1500 Owners Want to Disable Auto Start/Stop
If you're searching for how to disable auto start stop on the RAM 1500, you're not alone. The Engine Stop/Start (ESS) system that RAM introduced across the 1500 lineup is one of the most complained-about features on the truck. Every time you come to a complete stop — at a red light, in a drive-through, in traffic — the engine shuts off automatically to save fuel. Then it restarts the moment you lift your foot off the brake. The result is a noticeable jolt, extra noise, and a driving experience that feels choppy and unnatural, especially when towing or hauling.
RAM built the ESS system to help meet federal fuel economy standards, not necessarily to improve your experience behind the wheel. For daily drivers, truck enthusiasts, and anyone who spends time in stop-and-go traffic, disabling it is a priority. Below, we'll walk you through every method available — from the factory button that resets every time you restart the truck, to permanent aftermarket solutions that actually stick.
How Auto Start/Stop Works on the RAM 1500
The Engine Stop/Start (ESS) system on the RAM 1500 is active by default every time you start the truck. When you come to a full stop and hold the brake pedal, the system cuts the engine to reduce fuel consumption and emissions. As soon as you release the brake, the engine restarts via a beefed-up starter motor and an Absorbed Glass Mat (AGM) battery specifically designed to handle the extra charge/discharge cycles. RAM's ESS was introduced on the fifth-generation 1500 (DT platform, 2019–present) across most engine options, including the 5.7L HEMI V8, the 3.6L Pentastar V6, and the 3.0L EcoDiesel V6.
The system is smart enough to disable itself under certain conditions — when the engine is cold, when the cabin temperature is extreme, when the battery charge is low, or when four-wheel drive low range is engaged. But in everyday driving conditions, it will activate at virtually every stop. That repeated cycling adds wear to engine components at startup, which is exactly the opposite of what long-term truck owners want. Disabling ESS keeps your engine running continuously, just like trucks did before this feature existed.
How to Disable Auto Start/Stop on the RAM 1500 (Step-by-Step)
Method 1: Use the ESS Off Button (Built-In, Resets Each Ignition Cycle)
This is the quickest way to disable auto start/stop on the RAM 1500, and it works on all 2019–present fifth-generation trucks. RAM includes a dedicated ESS Off button on the center console switch bank. It's labeled with an "A" with a circular arrow (the standard stop/start icon) and is located near the 4WD selector or traction control buttons depending on trim. This method is completely safe and requires no tools, but it resets every time you cycle the ignition — meaning you'll need to press it again every time you start the truck.
- Start your RAM 1500 and allow it to fully initialize.
- Locate the ESS Off button on the center console — it's typically in the lower switch cluster near the 4WD and Traction Control buttons.
- Press the button once. A light on the button will illuminate, and you may see a "Stop/Start Off" message appear in the Driver Information Display (DID) in the instrument cluster.
- Confirm the system is deactivated — the truck's engine will no longer shut off at stops for the remainder of that drive cycle.
Important caveat: This setting does not save between ignition cycles. Every time you turn the truck off and restart it, the ESS system reactivates automatically and you'll need to press the button again. If that's frustrating, read on — Methods 2 and 3 offer more permanent solutions.
Method 2: RAM Uconnect System Settings (2019–Present, Select Trims)
Some RAM 1500 owners have reported a menu-level option within the Uconnect 5 infotainment system (available on 2021+ trucks with the 12-inch screen) that allows you to adjust or save ESS preferences. While RAM does not officially offer a persistent "always off" toggle through Uconnect, the RAM app and dealer-level FCA/Stellantis diagnostic software can sometimes be used to modify default ESS behavior on certain configurations. Here's what you can check:
- From your home screen, navigate to Settings → Vehicle → Engine Stop/Start (availability varies by model year and trim — this path may not appear on all builds).
- If the option is present, toggle "Auto Stop/Start" to Off and confirm the change.
- If no menu option appears, contact your RAM dealer about a Stellantis software configuration update — some dealers can modify the default ESS state using the wiTECH diagnostic tool, though this is not universally offered and may not be covered under warranty.
Note: Uconnect-based ESS settings, if available on your trim, may still reset after a battery disconnect or software update. This method is inconsistent across the RAM 1500 lineup and is not a guaranteed permanent fix. For a truly permanent solution, see Method 3.
Method 3: Install an Aftermarket ESS Disable Module (Permanent Fix)
The most reliable way to permanently disable auto start/stop on your RAM 1500 is to install a plug-and-play ESS eliminator module. These devices tap into the truck's OBD2 port or connect inline with the ESS switch circuit to automatically send the "off" signal every time the truck starts — so you never have to press a button again. Quality modules from reputable suppliers are designed specifically for the RAM 1500 DT platform and work transparently with the truck's existing electronics without throwing codes or triggering warning lights.
No permanent wiring modifications are required with most plug-and-play units, making them fully reversible. Installation typically takes under 10 minutes. This is the go-to solution for RAM 1500 owners who are tired of pressing the ESS button every single morning. Some modules also retain memory if the battery is disconnected, meaning they reactivate automatically when power is restored — something the factory button cannot do.
How to Disable Auto Start/Stop on Other RAM Models
RAM 2500 and 3500 Heavy Duty
The RAM 2500 and 3500 Heavy Duty trucks do not come equipped with an Engine Stop/Start system from the factory. The ESS feature is exclusive to the lighter-duty RAM 1500 platform. If you're driving a HD truck and experiencing unexpected engine behavior at stops, the issue is unrelated to an ESS system — check for idle control or transmission-related concerns instead.
RAM Classic (DS Platform, 2019–2021)
The RAM 1500 Classic — the carryover DS-platform truck sold alongside the new DT-generation 1500 from 2019 to 2021 — does not include the ESS system. It was not equipped with the AGM battery or the upgraded starter hardware required for stop/start operation. If you own a RAM 1500 Classic, ESS is not a feature you need to disable.
RAM 1500 TRX
The RAM 1500 TRX (2021–2024), powered by the supercharged 6.2L HEMI V8, does include an ESS system. The same ESS Off button method described in Method 1 applies to the TRX. Given the performance nature of the truck, many TRX owners prioritize disabling ESS immediately. An aftermarket ESS eliminator module compatible with the standard DT-platform RAM 1500 will typically work on the TRX as well — confirm compatibility with the module manufacturer before purchasing.
Get Rid Of Stop/Start Definitively
Discover our Start/Stop deactivation modules designed to restore driving comfort, protect critical components, and eliminate unnecessary engine shut-offs.
→ Turn OFF Stop/Start For GoodDoes Disabling Auto Start/Stop Affect Your RAM Warranty or Battery Life?
Using the factory ESS Off button has zero effect on your RAM warranty — it's an OEM-designed feature and using it as intended is completely within bounds. For aftermarket disable modules, the situation is slightly more nuanced. Under the Magnuson-Moss Warranty Act, a dealer cannot void your warranty simply because you've installed an aftermarket part — they must prove that the part directly caused the failure in question. A plug-and-play ESS eliminator that doesn't modify any vehicle software or permanently alter any wiring is a low-risk addition, but it's worth being aware of the dynamic, especially if your truck is still under its 3-year/36,000-mile basic warranty or 5-year/60,000-mile powertrain warranty.
As for battery life — disabling ESS is actually better for your AGM battery in most real-world scenarios. The ESS system puts your battery through a high number of partial charge/discharge cycles that, over time, degrade AGM battery capacity faster than normal driving would. Keeping the engine running continuously at stops reduces that cycling stress. Your starter motor also benefits — ESS systems use a reinforced starter, but fewer unnecessary start events means less cumulative wear on that component over the life of the truck.
Common Issues Related to Auto Start/Stop on the RAM 1500
Engine Restart Feels Rough or Jolts the Cab
This is the most frequently reported ESS complaint on the RAM 1500, particularly with the 5.7L HEMI V8. When the engine restarts from an ESS shutdown, some drivers feel a noticeable shudder or lurch through the drivetrain. This is not necessarily a defect — it's a characteristic of the system — but it becomes more pronounced as the starter motor, flywheel, and AGM battery age. If the jolt is severe or getting worse, have your AGM battery load-tested, as a degraded battery is often the root cause of increasingly rough ESS restarts.
ESS Light Stays On or System Won't Disable
If your ESS Off button doesn't seem to work, or the stop/start system activates even after you've pressed the button, the most common culprit is a low AGM battery state of charge. The RAM 1500's ESS system monitors battery voltage closely — if the battery isn't fully charged, the system may refuse to shut off or may ignore the disable command entirely. Have the battery tested at an auto parts store or dealership. Also check that the climate control system isn't set to an extreme temperature, as RAM's ESS logic will sometimes override the off command to maintain cabin comfort.
AGM Battery Draining Faster Than Expected
Some RAM 1500 owners — particularly those who do a lot of short-trip driving — report faster-than-expected AGM battery degradation. The ESS system's repeated charge/discharge cycles, combined with short trips that don't allow the alternator to fully recharge the battery, can accelerate capacity loss. If your RAM is primarily used for short commutes, consider using a battery maintainer or trickle charger overnight, and verify that your replacement battery meets RAM's OEM AGM specification — substituting a standard flooded lead-acid battery in an ESS-equipped RAM 1500 will cause immediate electrical issues and may trigger warning lights.
FAQ — RAM 1500 Auto Start/Stop
Does the RAM 1500 auto start/stop disable setting save between restarts?
No — pressing the factory ESS Off button only disables the system for that ignition cycle. The next time you start your RAM 1500, ESS reactivates automatically and you'll need to press the button again. The only way to make the disable setting permanent is through an aftermarket ESS eliminator module, which automatically sends the off command every time the truck starts.
Which RAM 1500 model years have auto start/stop?
The Engine Stop/Start (ESS) system was introduced on the fifth-generation RAM 1500 (DT platform) starting with the 2019 model year and continues through current production. It applies to trucks equipped with the 5.7L HEMI V8, 3.6L Pentastar V6, and 3.0L EcoDiesel V6. The RAM 1500 Classic (DS platform, sold through 2021) and RAM 2500/3500 Heavy Duty trucks do not have ESS.
Will disabling ESS on my RAM 1500 hurt fuel economy?
You may see a minor reduction in EPA-rated fuel economy — typically in the range of 1–2 MPG in heavy stop-and-go driving where ESS activates most frequently. In normal highway or mixed driving, the real-world difference is minimal. Most RAM 1500 owners find the improved driving experience well worth the negligible fuel economy trade-off, especially since ESS savings are most pronounced in conditions (severe urban stop-and-go) that most truck owners don't experience constantly.
Is there a RAM 1500 ESS disable that works without pressing a button every time?
Yes. An aftermarket ESS eliminator module — a plug-and-play device that connects to the OBD2 port or the ESS switch circuit — will automatically disable stop/start every time you start the truck, with no button press required. These modules are available for the 2019–present RAM 1500 DT platform and are the most popular permanent solution among RAM owners who want to ram 1500 ess disable functionality without any ongoing manual steps.