2025 RAM 1500 BIGHORN 3.0 I HURRICANE twin-turbo, SO, 420HP - check engine light

[2025 rebel junk]

It looks identical to the September one, the only change I see is that it was revised to cover vehicles built up to October 4th

its say supersedes sept 21 andt21 one to be removed from files and it a rsu for all

 

[2025 rebel junk]

did you read hole thing

 

[Brahmajoe]

did you read hole thing

Yes, it says updates are with the asterisk and the mainly changes it from a tsb to an rsu, build dates are updated as well. What do you see?

 

[Jimmy07]

its say supersedes sept 21 andt21 one to be removed from files and it a rsu for all

Correct. It’s the same TSB as the September one, except it’s revised. The revisions to the the September tsb are noted in the new one with asterisks. The only revision is the vehicle build dates have been changed to vehicles built up to October 4. It’s the same software flash that is able to be applied to more vehicles.
If you are seeing something else different, post up a pic.

 

[Brahmajoe]

Correct. It’s the same TSB as the September one, except it’s revised. The revisions to the the September tsb are noted in the new one with asterisks. The only revision is the vehicle build dates have been changed to vehicles built up to October 4. It’s the same software flash that is able to be applied to more vehicles.
If you are seeing something else different, post up a pic.

Out of curiosity I did have the flash preformed. I just called the dealer and they checked my vin and they did say there was an RSU for powertrain module, I had it done on the 9th of this month. Does it wipe it once preformed or does it just keep all the active effective vins

 

[Jimmy07]

Out of curiosity I did have the flash preformed. I just called the dealer and they checked my vin and they did say there was an RSU for powertrain module, I had it done on the 9th of this month. Does it wipe it once preformed or does it just keep all the active effective vins

Which flash did they do? There are two tsbs that have revisions- one for the pcm, and one for the ignition control module.
Do you have a pic of your service ticket summary, and did they type in the tech notes what part number the flash was and what it was flashed to?
I have the a list of the current pcm and icm flash part numbers I can compare to.

 

[Brahmajoe]

Which flash did they do? There are two tsbs that have revisions- one for the pcm, and one for the ignition control module.
Do you have a pic of your service ticket summary, and did they type in the tech notes what part number the flash was and what it was flashed to?
I have the a list of the current pcm and icm flash part numbers I can compare to.

 

[Brahmajoe]

Thanks would you be able to post that list

 

[2025 rebel junk]

ok

Out of curiosity I did have the flash preformed. I just called the dealer and they checked my vin and they did say there was an RSU for powertrain module, I had it done on the 9th of this month. Does it wipe it once preformed or does it just keep all the active effective vins

had mine done on 8th so we is it the same i have appt nov 4 for oct 8 th one

 

[2025 rebel junk]

mins just says updated pcm iscm

 

[2025 rebel junk]

update worked on my truck it fixed a few things but has not fixed the surging its annoying

 

[Brahmajoe]

Which flash did they do? There are two tsbs that have revisions- one for the pcm, and one for the ignition control module.
Do you have a pic of your service ticket summary, and did they type in the tech notes what part number the flash was and what it was flashed to?
I have the a list of the current pcm and icm flash part numbers I can compare to.

Are the updates to my 2 modules the most current?

 

[Brahmajoe]

mins just says updated pcm iscm

You don’t have a software number next to them?

 

[Jimmy07]

Are the updates to my 2 modules the most current?

Yes. AN for the pcm and AI for the iscm is the most current:

 

[Brahmajoe]

Yes. AN for the pcm and AI for the is n is the most current:
View attachment 191766

View attachment 191767

Thanks

 

[Brahmajoe]

Thanks

So when the system shows an rsu and I am up to date just disregard? Also if nice it’s an rsu is it covered under warranty I paid out of pocket for update

 

[2025 rebel junk]

So when the system shows an rsu and I am up to date just disregard? Also if nice it’s an rsu is it covered under warranty I paid out of pocket for update

u did i didn't its warranty

 

[2025 rebel junk]

3 years 36000 that stuff is covered

 

[Brahmajoe]

3 years 36000 that stuff is covered

But I didn’t have an active engine light, I did have a cold start misfire. They said it would be a cost if I wanted the update. But now that it’s an RSU can I get refunded ?

 

[Jimmy07]

So when the system shows an rsu and I am up to date just disregard? Also if nice it’s an rsu is it covered under warranty I paid out of pocket for update

If you are exhibiting the customer symptoms described in a tsb, it is covered under warranty. If you are not exhibiting symptoms of a tsb, and you tell them to perform the tab flash anyway, you have to pay yourself. Since your VIN is listed as an RSU, I would see if they can double check your vehicle and see if you are owed a refund for paying out of pocket.
When they hook up to your truck, they will see a topography screen of all the modules on the vehicle, similar to the pic below. Any modules that have an available flash will show the green circle with white flash bolt.