Hill Holder warning on dash

My truck starting doing the same thing, any answers?

I had the same thing happened to me and the dealer reset the transmission an 7 months later it happened again

my ram promaster 2500 is telling me service hill holder that can be can help me with some information,thank you

My 2019 van displayed Thu message had clunking. I let it cool down the clunk disappeared. In shop now to see what check engine light says

hi i have same problem any solution?

My 2018 ram promaster city had the same issue with 26000 miles on it. Turned out the transmission control module went offline somehow. Dealer just had to reprogram it.

Same issue. Dealership replaced transmission module

This happened to my 2016 Ram Promaster City Tradesman THREE times already (twice after the battery died). The first two times, we towed it to the dealership. Is there a way to fix it without taking it to the dealership?

Mine ended up being two separate problems. The transmission sensor had to be changed out. That was under warranty and fixed the clunk. I was assured the battery was fine, but alas within two weeks, we were back in and yes...the battery (also under warranty) had to be changed out. It's been fine ever since.

Late answer with it being 2022 now but might help someone. I have a 2016 ProMaster City with the same problem. I started with removing and reseating the 2 main cables / connectors on the ecm (between battery and engine). This solved the problem completely. So quite simply a contact issue. This is a road side quickie fix. With more time available, you should clean the contacts before reseating them. Hope this helps.

Ok that worked for a short time. So I found that in the cold of the morning I would have the error before even starting the engine, but as the outside temp warmed it would work fine. I drove it for awhile without the error. I did a lot of turning and stopping on a hill and getting the hill holder to live up to it's name. The hill holder error happened as I pulled into my driveway. I tried restarting in park and neutral but it would not go away. I got out, found the connector going to the TCM (on firewall within the engine compartment middle) I disconnected and reconnected a few times. I started it back up and the error was gone. After I pulled fully into the driveway I disconnected the TCM and sprayed contact cleaner on both ends. I've also heard of ground issues causing this so I also ran a wire from the ground screw on the TCM to the ECM ground and directly to the battery's negative terminal. I also cleaned the battery terminals and connectors. I ran my test loop and went out of town to a steep 1.5 mile hill. It looks like this fixed it. I'll know in the morning for sure seeing as the cold would always bring it back. Fingers crossed that this issue will be gone for good!

No luck, ordered another TCM.

---- Resolved!!! ---- TCM and ECU have to be programmed to match each other. The new TCM I ordered from an identical year and spec Promaster City didn't solve the issue. My newer but cheap code reader didn't tell me anything. I purchased a Z13s Harbor Freight code reader and it told me TCM / ECU mismatch. I put the original TCM back in and reseated 3 sensor connections. Worked flawlessly through a fair bit of driving. With the help of my wife we partially disconnected sensors until the problem reappeared. Turns out the cam sensor connection was the culprit. Fully disconnected the van won't start. Partially disconnected causes the hill start and ESC error to come on immediately. Reseating the connector with the engine running causes the message to go away immediately.

Anyone get a solid answer to this problem? Lavellj, did your final post turn out to be the real deal fix? I have a 19pmc and i killed the battery while playing music while installing new roof rack. Jumped it and started right up first crank. Let it run for about 30 mins and jumped in to go to store when i realized i wasnt going anywhere and it was properly placed in drive. So i go to put it in reverse and it gets stuck in neutral. I had to shut the pmc off, shift to park and restart. Started right up and when i put in reverse or drive its with a hellish thud, one that will have you wondering if yout tranny is now sitting in the road, thats how hard the shift to reverse or drive was. Then, at idle in park or reverse, the throttle does not correspond with my foot....at all. When im able to drive it, its stuck in 1 gear the entire time. What the hell is going on? From what i have been seeing, this is a common issue when battery dies? What kinda crap is this? Your telling me a 2019 vehicle in todays modern world cant handle or have redundancies to avoid this everytime a battery goes bad? This has left a serious bad taste in my mouth for Rams now. I am incredibly disappointed with F.C.C. this vehicle is my livelihood, how i earn a living, and one i paid a arm and leg for just for it to leave me unable to work.....someone please tell me i can fix this on my own somehow, im begging you please...

I thought I had it fixed a number of times. In the end all my above fixes didn't work. I re-read the recall wording and determined this possibly had to do with the transmission wiring harness. This is one of the items they replace if you get certain codes. The wiring harness (transmission side) is descibed as having a bad connector in their wording. So I focused on this. On the transmission the wiring harness going from the tcm / vehicle to the transmission you'll find a circular connector. You rotate the locking collar counter clockwise and pull it off. The transmission will have male pins and the engine bay side will have female pins (maybe the reverse, it's been a bit). I found the male pins looked perfect and the female pins had the tiniest bit of oxidation. Using a cap full of contact cleaner and a bunch of round wooden toothpicks i cleaned every contact by dipping the toothpicks in the contact cleaner and spinning them left and right in each hole. After the contact cleaner dries (2 seconds), I reassembled the harness connector. Make sure you turn it till it clicks / pops into the fully locked position. Voila all was well. I've driven well over 10k miles since (I drive over 100k every year). I hope this helps. Note: I mentioned a recall which supposedly only applies to the 2015 model year. They stated in the recall that it was a wiring harness issue, But their fix for this recall was reprogramming that allowed you to limp home instead of ending up stranded. They only addressed the wiring harness if you got a certain code. Problem is they initially state that the problem stems from the wiring harness. This van has not changed from the initial 2015 model and I believe it's possible that the wiring harness may be the culprit on a lot of models that came during and after the recall. All you need is the tiger shark engine and 9 speed transmission to have this issue.

When I had this clunking and esc/hill holder alerts, it turned out to be an issue of my emergency brake being stuck in the partially- engaged position. I guess they don’t lube them at the factory, so the metal brake pull under the van just rubs metal on metal, rusts over, then gets stuck engaged. I was able to get the bracket off, file off the rust, lube it up, and fix the cause of my problem, but I had to replace quite a few parts in the brake system. No problems since, just have to make sure it stays greased up and think twice before engaging my e-brake in the cold (or ever tbh).

My RPC did the same when my battery had a bad cell. I took off the negative post and cleaned it (per one of the posts above) and I think it reset the hill holder, because it started and shifted into gear smooth as butter. But I could tell the battery was going bad, so I got it replaced and we're good so far. We'll see what this week is like