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Alert: Module Software Updates for 2012

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2012 update
15K views 43 replies 10 participants last post by  BigHemi2 
#1 · (Edited)
I took my 2012 SRT to my dealer last week for the annual state inspection, and he told me that there were five module software updates for my vehicle. I mentioned that I had done all the available recalls and technical service bulletins, but he pointed out that these five updates were NOT recalls or TSB's. They are NEW computer software updates that improve upon the originally installed factory software.

The updates are for engine management, transmission, suspension, braking and one other module (I'm not sure which one). I was skeptical that these updates would produce any noticeable improvements, but I was wrong. The engine now runs smoother and quieter, and has a more aggressive power curve. The 5 speed transmission now produces silky smooth shifts, with barely noticeable shift points. The suspension is less bumpy, and the braking seems to require less pedal pressure.

The acronyms for the five updates, which your dealer will hopefully recognize, are: PLGM, ABS, TCM, ADCM and ELSD.

The number of updates available for your vehicle will depend on the VIN. Also, if you have not exceeded the basic factory warranty of 36,000 miles, these updates should be free. If you are over 36,000 miles, your dealer might charge about $20 for each update.

My beast is a very early 2012 with 40,000 miles, so it was really worth this small investment. Good luck!
 
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#3 ·
just took mine in for inspection last month and oil change friday.....no one mentioned anything to me.....they will be getting a call at 730AM tomorrow.....
 
#5 ·
service advisor had no idea what i was talking about, told me to bring it in and have it looked at by a technician who can run diagnostics.....
 
#8 ·
I think getting updates like these are very dealer dependent. Some will just automatically do them when you are in and some wont do them unless you are having a problem even if you ask. My current dealer just does them my previous dealer it was a battle to get anything fixed. and that's why they are my previous dealer lol
 
#9 ·
Yeah, my seller/dealer always mentions that they have updates, and asks do I want to have them done while there, with roughly how long it would add to an express lane oil/filter change.

Unless it is bugging me even a tiny amount, my plan is to wait till the recall work is done.

"All I want for Christmas is my Recall Parts"
 
#10 · (Edited)
had mine done and i have to say that there is a noticeable difference in transmission and braking, haven't noticed suspension yet but only drove it home. feels more powerful and smoother as previously posted. before the updates, 1st gear red lined at about 35mph, second gear 60mph, third gear 90 mph. now i can hit 40mph in first, 65 mph in second and 100mph in 3rd before redlining. each module was 40 dollars and worth it in my opinion. out the door for about $200. haven't had time to put in some timed runs but will report back when i do so to see if it truly is faster or not.
 
#11 ·
What did you say to your service advisor when you asked him about these updates. My ny dealership has no idea what I'm talking about. Gonna go there monday and see maybe if I can talk to a tech about this just don't know how to approach it



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#12 · (Edited)
Basically they said they didn't know about them and wouldn't have done anything unless I asked them to. Wish I was made aware of this before warranty ran out...five updates were power liftgate module, antilock braking system, transmission control module, active damping control module, and electronic limited slip differential....
 
#13 ·
Sorry another question did the tech have to plug the vehicle to there computer to find out the updates or did they come up when he searched your vin on the computer. I called and they told me from just the vin there no recalls or updates but might be if they hook my car up and check is this true?


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#23 ·
Did anyone try out track and sport mode yet with the new update. I don't know why but I feel like the car runs faster now in auto then sport or track? Also back pressure has reduced and the pops are gone which I got from the headers and borlas. Honestly feel like a got a custom tune done lmao.


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#24 ·
I generally drive in Auto mode, and it really does feel like a custom tune. I wish I had a safe place to test 0 to 60. I'm equally impressed by the improvement to the drivetrain...silky smooth shifts and not a clunk or noise anywhere. With only a few of us on this thread, there could be 2995 other owners of 2012 SRTs out there unaware of these updates.

Any new reports of 0-60 times in GOOD conditions?
 
#25 ·
Hey guys. Have any of you been able to do any 0-60 times under good conditions? I did some driving under Sport and Track and found the shifting to be less smooth than in Auto. I believe these updates are intended to be optimal in Auto mode, which is the normal default mode.
 
#27 ·
Sport and Track modes are SUPPOSED to give you harder and faster shifts. That's what those modes do. In auto mode the 'box will learn your driving style and adjust to suit, and it is constantly variable. Drive hard in auto, using paddles, braking late etc, and that's how the 'box will drive for a while until it "learns" again that your driving sedately (if you do lol).
 
#29 ·
Thanks for making us aware of these updates. Have an appointment to get them installed next Friday. Dealer has quoted me a flat fee of $99 to perform all the updates.
Just saw this thread on the "Recent Threads" list. Am looking to get a MY15 JGC this spring [not an SRT but with the 5.7L] and wanted to know how you know about any software updates for your JGC's. Assume there will be updates for the MY15 in the future at some point...

Is there a section on the Jeep or Mopar sites, or are you finding out about them in the Tech Bulletins or some other section here on the JG site?

Thanks in advance.
 
#39 ·
What I have to say about these updates is:

  • I wish to see/read that NO ONE else gets these done.
  • The updates are HORRIBLE.
  • ALL of these flashes/updates mentioned have changed the Jeep SRT of mine to a point where I do not enjoy driving the Jeep at all anymore.
I immediately from the start HATED the Adaptive Dampening being firmer and constantly bobbling up/down unnecessarily over every uneven surface along with the engine feeling limited. Potholes: Be prepared to get slammed. The ride is complete crap now. Anyone who thinks this is an improvement isn't a sane person if you think this is an improvement acceptable/nice ride vs the original setting.

The transmission learning feature failed in mine putting the Jeep into Limp Mode after the TCM update. Dropped the Jeep off at a different dealership to have it diagnosed/fixed and it took over a week to solve through the Star Case.The Adaptive cruise control would not work. And the paddle shifters did not work either. The transmission now makes the front-end pop up/dive.

Now I'm finding the Limited slip activates in any road conditions all the time above 3/4th's - WOT acceleration while entering any corner limiting power and jerking/tossing you around. The Jeep NEVER did this before in any conditions from the wettest of roads to dry/pebbled roads, etc.

The Jeep is in every way NOT enjoyable to drive after the flashes. I DO NOT look forward to driving it at all anymore as before in the entire 3 years of ownership. After these flashes are done I am only now told you cannot go back to the original flashes. SO....everyone BEWARE of what you ask for when getting these flashes DONE. They are a permanent destruction to what use to be a wonderful vehicle I once drove.

If you already like your Non-Flashed SRT... I Strongly suggest/recommend you keep it that way. Or... you'll be so enraged knowing there is nothing you or Chrysler wants to do, to go back to what once was. Before the flashes I had a vehicle I felt I couldn't ask anything more of ...to now constantly thinking of selling since it now rides/drives like a P.O.S. I had 3 years of wonderful experiences to compare it to.

DO NOT get these updates done.
Can't stress that enough !!!
 
#40 ·
sorry to hear about your experience....i would be really mad if that was what happened to mine as well. not advocating one way or the other but my updates improved mine without a doubt.
 
#42 ·
had the TSBs/recalls done on my 2012 yesterday at 40k interval. along with all the aforementioned noticeable changes in performance (smoother acceleration & gear shifts, firm braking, up-shifts at 4.5k) , etc. i did notice the engine shut-off is now silent & shudder-free; you can barely notice (hear) the engine shutting off. has anyone else noticed this?

the first time i actually had to push the button again to be sure the engine had shutdown (but instead it switched on again).
 
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