Warning light illumination unavailable - service required

[MattH89]

· 3/27/25 Bought RHO
· 4/1/25 1st noticed the Frontal Collision turned off Warning light on.
· 4/14/25 Noticed the blind spot warning lights flashing from the left to right mirror repeatedly and the radio started out blank on start up then slowly from bottom left would fill in, adaptive cruise control when set to the closest setting would reset itself back to longest range.
· 5/12/25 Warning Light Illumination Unavailable Service Required. This has happened several times during April and up to this date. I called the Service Department and scheduled a appointment for 5/16/25.
· 5/16/25 Service received the truck. I explained everything going on with it. They did a reset of the truck but didn’t know what was causing these issues.
· 6/6/25 All the same issues above were still happening. The reset did nothing. Warning Light Illumination Unavailable Service Required
· 6/29/25 Check Engine Light came on for several minutes and turned off.
· 7/1/25 Check Engine Light came on along with Warning Light Illumination Unavailable Service Required.
· 7/2/25 Trailer Brake Disconnected Warning and Service Trailer Brake System Warning. Called the Service Department and set up an appointment.
· 7/7/25 Scheduled Appointment Mainly for the Check Engine Light and to fix the other Warnings. They told me that it needed a module but were going to order 3 modules and replace all 3. Said 2 were a week out and the other is a dealer only part and was going to have to get another dealership to let the part go.
· 7/10/25 Started up my truck to go home and these were on SOS Call Unavailable, Service Electric Stability Control, Service Trailer Brake System Warnings. (Pictures) My house is 15 miles from my work. By the time I had driven 3 miles these were on Blind Spot Alert Unavailable, Service Airbag System, Service Active Damping System, Four Wheel Drive System Temporarily Unavailable, Traffic Sigh Assist Unavailable and the Mileage was flashing. Once home I took pictures and a video of it. Sent them to the Service Advisor. He said thank You and I can get you in for service the next week.
· 7/11/25 Got up to go to work and the truck was dead. No power at all. I advised my Sales Representative and called the Service Advisor. The Service Advisor said to call roadside assistance and that he was going on vacation next week and he would let one of the other Advisors handle it while he was out. Roadside Assistance sent a tow truck. The driver attempted to jump the truck with a jump box, and it wouldn’t start. He said this box will jump the roll back he was driving.

My experience so far. It's still in the shop well the parking lot dead!

There are still a few threads you haven't copied and pasted this into. Best to hit them all so nobody misses your story.

 

[RHO_Chris]

After 5 weeks of waiting for a new cluster, it took 6 days and the message came back.

 

[RHO_Chris]

I was told today that Ram is aware and is working on a software fix for this. My service advisor noted that they are now saying to not replace the cluster. So, if you’re waiting on one you might consider asking them to check again to see if they can find the service bulletin or whatever that told my service advisor this. He told me to come get my truck and deal with it until it’s released - whatever he read said 3rd quarter.

 

[Msuspartan07]

What is weird for me, as I get this warning light, whenever I’m in a dark place, like my garage or if I put a window shade in.

 

[Lsujker]

Got this same warning first 1k miles. After reading this decided to wait. At 3500 mile, can say the last 2500 have been warning free. Maybe lucky for now.

 

[HudsoTodd]

I was told today that Ram is aware and is working on a software fix for this. My service advisor noted that they are now saying to not replace the cluster. So, if you’re waiting on one you might consider asking them to check again to see if they can find the service bulletin or whatever that told my service advisor this. He told me to come get my truck and deal with it until it’s released - whatever he read said 3rd quarter.

That would truly be comical if my truck was in the shop for 45 days to find out it just needs a software update.

 

[ScooterInTX]

What is weird for me, as I get this warning light, whenever I’m in a dark place, like my garage or if I put a window shade in.

Same! Haven't seen it for about 1500 miles and then I got the dreaded black screen of death yesterday. Parked it for an hour and it was fine.

 

[ZL1Ragtop]

I believe this issue is voltage related...Just like most iof the other erroneous codes. Mine pops up at least once a week and goes away. I have to get my truck over to the dealer to replace the batteries. I was actually walking through my shop yesterday and spotted a couple of "yellow top" AGM batteries sitting on a shelf...I just might replace with one of those instead...

 

[ScooterInTX]

I believe this issue is voltage related...Just like most iof the other erroneous codes. Mine pops up at least once a week and goes away. I have to get my truck over to the dealer to replace the batteries. I was actually walking through my shop yesterday and spotted a couple of "yellow top" AGM batteries sitting on a shelf...I just might replace with one of those instead...

Seems plausible. Let us know how it turns out!

 

[eltaco]

I can agree this seems to be SW related on my truck.

I’ve had this message pop up when I put the truck in D and open the driver side door. I get the warning illumination lamp unavailable, and once I clear that, I get the actual warning to display.

Last night, I jumped in the truck in a hurry, started it, and almost immediately shifted into D. I got 2 warnings on the dash immediately. I think the first was ABS system, and the 2nd was BSM errors and both mirrors lit up. I had a short drive and everything functioned normally, and both were gone when I restarted the truck.

 

[HudsoTodd]

Update: thanks to the help of you guys, I requested a retention case manager. Now one thing I thought was weird is my general manager at the dealership texted me right before the case manager called. Said that my cluster is literally no where to be found, they contacted a regional parts manager and still have nothing (mind you the part was supposed to be delivered July 29). Then the case manager called literally 5 minutes after and proceeds to say the gauge cluster will be there tomorrow. I am just sick and tired of the games. Therefore I requested trade assistance.

 

[RHO_Chris]

Star case # S2508000042

This is the info on my documentation regarding what my service guy told me and waiting for a software fix.

 

[branbray07]

Here we go . Got it.

 

[AllBlackRHO]

My dealer had this popup on his “road test” and put it in writing on paperwork saying Ram engineers are aware the is a “erroneous” message they’re working on a software update to eliminate…….they told me this to disregard it when it pops up bet I’ve never seen it. Truck batteries died at 272 miles and they concluded it was a faulty aux battery and truck has been fine for a week and a half now. Voltage starts the day at 14.1 then after multiple job site starts/ stops it hovers 13.4 -13.8

 

[toast411]

I believe this issue is voltage related...Just like most iof the other erroneous codes. Mine pops up at least once a week and goes away. I have to get my truck over to the dealer to replace the batteries. I was actually walking through my shop yesterday and spotted a couple of "yellow top" AGM batteries sitting on a shelf...I just might replace with one of those instead...

why do you think it's voltage?

 

[HudsoTodd]

why do you think it's voltage?

It could be voltage related but it probably is just an error with the system.

 

[HudsoTodd]

FINALLY the cluster has arrived! 47 days after my truck has been in the shop. My biggest red flag with this situation is the delivery date. They told me all along it it would be July 29th. Obviously that day comes and goes. Then an awesome person in this forum told me to go for a retention case manager. I just find it odd that within 3 days of mentioning lemon law the part arrives. Miraculously out of nowhere. Mind you the parts department said they literally had to tracking number of this part. Very odd. Still don’t think I’m taking the truck back.

 

[HudsoTodd]

Hoping this is the last and final update! Finally got the truck back, and works good (for now). After some back and forth, RAM offered me $5k and an extended warranty. On top of that, if the problem occurs again they will add more compensation. Overall pretty happy with the final result.

 

[JLM1600]

Hoping this is the last and final update! Finally got the truck back, and works good (for now). After some back and forth, RAM offered me $5k and an extended warranty. On top of that, if the problem occurs again they will add more compensation. Overall pretty happy with the final result.

damn...I mean, Im down to not drive my truck and put miles for more than a month if in return I get 5k and extended warranty haha...this is of course, IF they were making your payments and got you a rental for free.

 

[RAM-Ranch-MT]

Hoping this is the last and final update! Finally got the truck back, and works good (for now). After some back and forth, RAM offered me $5k and an extended warranty. On top of that, if the problem occurs again they will add more compensation. Overall pretty happy with the final result.

Take the money and run. Makes me wonder if your truck has to be down for awhile for them to do that or if my 7 trips to the dealership and over a week without truck would be sufficient. Fkn ram .