2025 Ram sst ho

[agio]

New to the forum, hope this goes well. Intermittently, while stopped at a light, the truck revs erratically, the puts itself in Park, and applies the emergency brake. Brought it to the dealership 3 times, last trip the said they couldn't find the problem. I get no check engine or other error. Anyone help out, thanks.

 

[Mpgrimm2]

Be careful, there have been a few trucks with reported sudden acceleration.

 

[RamDiver]

New to the forum, hope this goes well. Intermittently, while stopped at a light, the truck revs erratically, the puts itself in Park, and applies the emergency brake. Brought it to the dealership 3 times, last trip the said they couldn't find the problem. I get no check engine or other error. Anyone help out, thanks.

Welcome to Ram Forum.


The search utility in the upper-right will find numerous threads discussing various failures in 2025 & 2026 model trucks. Both of these years share the I6 dual turbo and the newer Atlantis High electrical architecture.

The following article has identified ground faults and a 12-volt power system that is unable to regulate the voltage sufficiently with the turbo system. This lack of regulation creates problems for the computer modules, resulting in a myriad of problems.

The issues vary from minor inconveniences to sudden explosive runaway accelerations, as mentioned above by Mpgrimm2.


Key Takeaways

• Identify structural voltage drops rather than accept simple software-glitch explanations from factory service centers.
• Inspect and clean factory grounding blocks down to bare metal to eliminate high-resistance points.
• Monitor dashboard behaviour during high-load scenarios, such as trailer towing or high-altitude mountain ascents.
• Upgrade to a premium battery to provide a stronger electrical buffer against high-amperage powertrain components.

Why The Ram 1500 Hurricane Engine Electrical Demands Are Causing Total Instrument Cluster Blackouts

Electrical demands from the Ram 1500 Hurricane engine cause total instrument cluster blackouts. High-output wastegates drop circuit voltage below 10.5V on heavy climbs, forcing the Marelli panel into protective shutdown. Clean your factory grounds now!

www.torquenews.com

I would consider the recommendations covered in the article, especially refurbishing all of the common ground blocks, as well as adding 'The Big 3' electrical mod, and an H8 AGM battery.

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