Storage mode on 2026 HD Rams

[cobracnvt]

I found this out from my dealer, dealing with a low voltage on my battery. They told me to use this if my truck is going to sit more than a day. I’m not sure why the truck can’t do this on its own.

There is a new feature on 2026 HD Rams called storage mode, available on the voltage screen in the dash cluster. It turns off the telematics and rear seat occupency sensors, and therefore keeping the truck battery from going dead. The remote start from my keyfob doesn’t work either while in storage mode. Passing this information along as it’s pretty buried in the manual.

 

[DarkHorse8]

It’s a shame we have to tell people to check their back seat for children.

 

[Units]

If your truck is sitting for a day or two, you should not have to use storage mode. Quite frequently I don’t go anywhere during the weekend and my truck sits and doesn’t go anywhere till Monday and fires right up. Sounds like a cop out by the dealer, they have no idea what your problem is or how to correct it. Have you load checked your batteries to make sure you don’t have any issues there?

 

[Scubaz66]

I have a 2022 RAM 2500 Bighorn. These trucks have electrical issues and the mechanics at the dealers don’t have the capacity to fix them properly. When I have starting issues they just replace the battery. If the engine starts they assume the problem is fixed. I’ve been through 4 batteries and STILL HAVE OCCASIONAL STARTING PROBLEMS!! It’s too a point I had to purchase a jump box to carry with me. Sometimes I’ll go a few weeks and never need it then other times I need the jump box to start the truck several times in a row. It’s an on again off again problem RAM can’t fix or refuses to fix under warranty.

 

[Rockcrawlindude]

Fwiw; My 19 Hemi regularly sits m-f with no problems

 

[sstoner911]

I have a 2022 RAM 2500 Bighorn. These trucks have electrical issues and the mechanics at the dealers don’t have the capacity to fix them properly. When I have starting issues they just replace the battery. If the engine starts they assume the problem is fixed. I’ve been through 4 batteries and STILL HAVE OCCASIONAL STARTING PROBLEMS!! It’s too a point I had to purchase a jump box to carry with me. Sometimes I’ll go a few weeks and never need it then other times I need the jump box to start the truck several times in a row. It’s an on again off again problem RAM can’t fix or refuses to fix under warranty.

Check all the ground cable conenctions.

Post in thread 'Big electrical problem with my new 2025 3500'

Apr 9, 2026

Where are you hooking up your charger?

It needs to be on the IBS, not direct to the battery post.

Check all the grounds for tightness, there are some on the fender.

Brutal HO - I wanted to thank you...during one of the times the truck wouldn't start, I checked all the ground straps and indeed found a loose one. The big a## cable that runs from the primary (driver) battery under the engine and I assume to the other battery. Once I tightened up that loose connection, the truck has started EVERY TIME! I also read the code and was getting P2509 - ECM/PCM Power Input Signal...

• mkresser

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[56ram2500]

I have a 2022 RAM 2500 Bighorn. These trucks have electrical issues and the mechanics at the dealers don’t have the capacity to fix them properly. When I have starting issues they just replace the battery. If the engine starts they assume the problem is fixed. I’ve been through 4 batteries and STILL HAVE OCCASIONAL STARTING PROBLEMS!! It’s too a point I had to purchase a jump box to carry with me. Sometimes I’ll go a few weeks and never need it then other times I need the jump box to start the truck several times in a row. It’s an on again off again problem RAM can’t fix or refuses to fix under warranty.

Wowzers I've had my 22 sit for just over 2 full weeks and then start right up, I guess I'm lucky based on what I've been reading...

 

[Scubaz66]

Wowzers I've had my 22 sit for just over 2 full weeks and then start right up, I guess I'm lucky based on what I've been reading...

Yeah sometimes I can let it sit for several days and the battery charge drops to about 63% charged and it cranks right up. Other days it won’t crank with the battery 95% charged. Never know what’s going to happen until I press the start button. I placed a battery monitor on it to watch for any unusual battery draws after I shut it down for the evening.

 

[el_barto]

Fwiw; My 19 Hemi regularly sits m-f with no problems

Same, still on the original battery. Truck lives outside.