Service active dampening and off road limited management messages.

[jazico]

I've made an appointment at the next nearest ram dealer. RAM cares recommended that someone else take a look. Hopefully they'll catch the problem quickly.

Keep us posted!

 

[Leman_Russ]

Any update?

I have had a similar journey. I have the Service active dampening and off road limited management messages every single day on start up. I have had the message since the day I picked it up.

When I purchased my TRX (December 2025), the day I picked it up the dealer informed me that the battery had died and they had to jump start it from the persistent cold that time of year (bought in Minnesota). Normally a small detail overlooked but after reading through the forums it does line up with hopefully just needing the recalibration instructions listed. The dealership (National Dodge in Jacksonville, NC) I brought it to told me I needed an entire new Active Dampening Module.

Between the dealership and “RAM Cares” I have been waiting for this part since February 2026 with a projected delivery now of Jan 2027. Utterly ridiculous.

Anyways, I will bring this information to them Monday and see what they have to say.

Thanks to all who share their time and knowledge on this forum.

 

[HDMLNIUM]

I thought I would chime in here too. I have had the message (service active dampening system) after start up for about a year and a half. My truck was at the body shop about a year and a half ago, from the beginning of February through the the start of April in 2025. I was told that My truck tried to do an over the air update while it was at the body shop, it killed the battery and the truck and the body shop couldn't get it running and had to flatbed it to the Ram Dealer. They charged the battery and what ever else and got it running and back to the body shop. After I picked it up from not having it for over 2 months I didn't bother bringing back to the dealer to get the era message fixed because I just wanted to drive it. So my truck has been like this since last April and yes I see the era message at start up every time. My question, since I hate going to the dealer for anything is am I doing any damage by not getting the era message cleared because my truck still feels the same and I can still put it in any mode and everything seems to work fine. Plus when I get my monthly update from Ram on my truck it always says every thing is good and no work needed.
Thanks, Bill

 

[dkmma]

I have IGLA, and mine only displays that message if I use the PIN to start the truck (usually when the battery in the IGLA FOB gets weak). It’s been doing this since I installed IGLA.

 

[evillrdnikon]

I have IGLA, and mine only displays that message if I use the PIN to start the truck (usually when the battery in the IGLA FOB gets weak). It’s been doing this since I installed IGLA.

Adding here for my experience. I have IGLA as well.

I found out, after taking my truck to the dealer and they couldnt figure it out, that if you input your IGLA pin in to quick after startup, i get the service active damp message.

my fix for any issues my dash presented was to wait for my dash cluster to fully sweep right to left. then input my password. no more messages.

 

[Leman_Russ]

Providing an update on my situation (albeit a few weeks after the repair has been completed):

I'm not sure if it is related or not, I am not one to believe in coincidences but within 24 hours of me commenting on this post and me contacting my service rep at the dealership in order to do the re-calibration before replacing the module, the active dampening module miraculously was delivered. I called RAM Cares to confirm that a new module had indeed actually been delivered which they did confirm. I told the dealership to go ahead with the new module install.

The issue has been resolved, the active suspension is operating at full capacity, and it is a very noticeable difference (significant improvement) after being replaced. A rare W for both RAM Cares and the RAM dealership here in Jacksonville, NC. I am grateful it is fixed and I look forward to keeping my TRX in great operational shape for many years to come. If there is anyone who had something to do with the expedited delivery, thank you.

 

[SandRex]

@RamCares - can you tell us if this will be a tsb or recall to address this issue? I have also been dealing with this since purchasing my truck. Several dealer recalibrations and a new pcm in 2023/24 did not resolve the issue. Mine appears not on startup, but consistently at the first minor speed bump or road dip when I drive.

 

[jazico]

So, I took my vehicle to the dealership again this morning, to re-do the calibration, with the specific instructions I just posted above.

They were really awesome about it and recalibrated both the ride height and the rebound. They asked me for permission to test drive after they performed the task to see if it would get rid of the code/message.

No bueno.
They came back with the following:
View attachment 152941
"Upon performing TRX suspension rebound reset found level sensor valves to be concerning with left rear level sensor voltage only being at 0.2612. Will create star case to discuss with Chrysler to confirm if this valve is in normal range"

I told them cool beans, let me know when Stellantis gets back to you. Once I got home, I spent the rest of the day digging into how this system actually works. Eventually, I learned more about the sensors themselves, what they look like, how they’re mounted, and how they’re supposed to be connected.

So I am like let me go check things out with all this wealth of new knowledge lol. Maybe the rod for the sensor is bent like some other folks had.

Tell me what's wrong with this picture :
View attachment 152942

I couldn't believe it. I am almost certain this happened after I had the HD springs installed, because immediately after the install is when I started getting the message. I assumed that when you mess with the suspension, it was common and just had to recalibrate. Not sure if they pop off easily or what, or if it's even part the process (doubt it) and was forgotten to be put back on, but what's crazier is that the dealership handled my truck twice for this ADCM issue in a span of 3 days and didn't notice it.

I know this sounds silly, but have you checked the ride height sensors themselves.

There are 4 of them, one for each corner. You can easily check this yourself.

Make sure none of them are bent or popped off (like it was in my case above).

Here is an example of what it may look like bent:
View attachment 152982

@SandRex have you seen these posts, and checked your sensors?

 

[SandRex]

@SandRex have you seen these posts, and checked your sensors?

I did - and just checked again to ensure all are still connected and plugged-in snuggly.

 

[jazico]

I did - and just checked again to ensure all are still connected and plugged-in snuggly.

Dang!I was hoping it was that, simple fix lol

 

[SandRex]

Dang!I was hoping it was that, simple fix lol

Me too!

 

[RamCares]

@RamCares - can you tell us if this will be a tsb or recall to address this issue? I have also been dealing with this since purchasing my truck. Several dealer recalibrations and a new pcm in 2023/24 did not resolve the issue. Mine appears not on startup, but consistently at the first minor speed bump or road dip when I drive.

Hi there, we unfortunately cannot speculate on any future Recalls or TSBs at this. However, we do take everyone's feedback seriously and will pass it along to the appropriate team.

Diamond
Ram Cares