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2014 Jeep Overland - Dash lit up like a christmas tree, speedometer not working

64K views 208 replies 63 participants last post by  eastof111 
#1 ·
So I have a 3 week old 2014 Jeep Grand Cherokee Overland with 1000 miles on it. I used the unconnect remote start from my cell phone about 4 minutes before walking out of my office this evening. When I got to the car it had not started.. I didn't think much of it until I turned the car on!!!

I started the car and immediately noticed the Brake light was on.. Then the ABS light.. The the check engine light, then the air bag light, then the traction control light! Basically the whole dash was lit up like a Christmas tree. Scrolling to the message center it told me to have my ABS serviced, my air suspension, my electric braking control (or something like that) and a few other things!!! (The air suspension is not working). I then put the car in drive and it moved fine but the speedometer is not working, its lit up but it does not show speed. My odometer is not adding miles, the range went from 205 miles, to 165 miles, to 210 miles, to 150miles and so on...

Anyone hear of this happening? I've read a few forums and only seen issues with ground wires. Could this be it? Taking it to the dealer before work in the morning.
 
#2 · (Edited)
I had the exact same thing, and at least one other person mentioned it. The first time the dealer cleaned up some grounds. The second time Jeep sent a new PCM. It was replaced on May 24th and so far so good.

In both instances the lights (except check engine) went out, and everything started working either later in the day or the next day. The check engine light took a little longer, but it retained the fault codes.

The second time it spit out two pages of codes.



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#3 ·
Bill - Thanks for the response. I assume that when they cleaned the grounds it only temporarily fixed the problem if at all? If so, how long before it happened again. I really appreciate your response and will tell the dealer about your experiences tomorrow. Maybe i'll ask for a new PCM
 
#4 ·
Since all was in order when they cleaned up the grounds, I'd say it did nothing. At the time everyone was reponding to a Star case about a loose ground. I had already checked mine before ever having the problem, but based on the codes that is what Chrysler told them to do.

The second time, they decided it was the PCM. Their logic was that if all the codes had been real problems the car would not be running. I took about a week for the PCM to come in, and everything was fine for that week, including the QuadraLift.
 
#5 ·
Bill - Just found the other thread that you posted your issues in. I went out to the car and started it again and all the lights are now off other then the check engine light. Sounds like either the PCM or the Shifter Module?
 
#11 ·
This same thing happened to me 2 weeks ago. 14' limited V6 luxII. Cleared itself as soon as I got to the dealer and had multiple codes stored. They told me "bring it back if it does it again". Been good so far, but it's an eery calm...
 
#37 ·
This same thing happened to me 2 weeks ago. 14' limited V6 luxII. Cleared itself as soon as I got to the dealer and had multiple codes stored. They told me "bring it back if it does it again". Been good so far, but it's an eery calm...

Ditto on all of this...except mine still had thrown a bunch of stored codes, but no active ones so they couldn't find problem. Problem occurred at 610 miles...two dealers checked everything out and could not find a problem..called star groups who said they weren't sure of a fix and to give it back to customer and put more miles on it. They cleared codes and hasn't been a repeat for a little over a week and about 500 miles. Not too happy about spending over 40K on a vehicle that can't be fixed...should have waited till 2015!!
 
#13 ·
Dealer just called and said that there were fuses that were not seated correctly.. I didn't have paper on me so I did not write down the codes, but I will get them when I go to pick it up. I remember reading in another thread that this happened to someone else and they said it was the fuses, and it should be a delivery checklist item.....
 
#16 ·
Happened to me on day 2. I took it back and they said it was a low voltage issue. My car had less than 100 miles on it. They said the battery didnt have time to charge since leaving the factory?? :confused: they reset it and now works great.
 
#17 ·
Happened to me last week. Air bag system failure, brake failure, anti-lock system failure, 4 wheel drive failure - all in the dashboard display upon start-up, stayed on while I drove - drove fine. Shut it off, called wife, meet me at the dealer, restarted, all clear. I stopped into the dealer, they said "computer fart", if it does it again, try to drive it directly here, we'd like to hook the computer up when everything is lit up to see what the Jeep computer sees. Also, they said, they've had several come back with electrical/electronic issues, they've been getting code from Chryco to fix, but all are BETA fixes, not for distribution. I don't know, I might take the new beta code over what seems to be beta code in it right now. All grounds are tight on mine.
 
#20 ·
I was bringing my car in to the dealer this morning (had an appointment to fix Uconnect and QuadraLift issues) and got the Christmas lights when I started the car. The dealer told me they have fixed the Uconnect (software issue) but had to order a new module for the instrument cluster. I won't have the car for a few days but hopefully the new module will resolve the issue and the other problems have been corrected.

By the way, I only have 470 miles on the Jeep.
 
#21 · (Edited)
I would also check the wiing going to the battery under the passenger seat. Unfortunatly owners are not permitted to buy a wiring diagram for their cars so cannot say exactly what to check.

Did buy the "factory service manual" CD for $160 delivered and is more of an expanded owner's manual using software seemingly from the last century. Does tell me how to replace the air filter which is not in the OM but a complete wiring diagram is explicitly not included.

Also runs only with Windows/IE and not the latest versions. Have to allow "active content" and if running an anti-virus it takes whole minutes from engine selection to contents display. CJF/TechAuthority has been promising a fix since April. RSN.
 
#24 ·
Maybe yes, maybe no. These symptoms generally disappear before the dealer ever sees the vehicles. Jeep chose to blame the ground because there were some cars that came off the line with one loose ground strap. There was never a code that specifically pointed to that bad ground. Jeeps position was check the ground because we can't think of anything else.

The idea that the ground, or multiple grounds, caused this issue is only "fact" if you believe that if you read it on the internet it must be true.

I found a loose negative battery terminal, long after my problem appears to be fixed. I don't know if the Jeep came from the factory that way, or if the dealer disconnected it when they replaced the PCM, and left it loose.



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#23 ·
I am in Cary, NC, and would like to hear if anyone has taken their Jeep to Autopark Jeep in Cary for this issue. I'm a newby here and found the forum when I searched to see if anyone else had seen this. I put my two-month-old Summit in the shop yesterday with this issue. I sent a link to this thread to my service advisor. I'll post my progress later today.
 
#26 ·
Got the Jeep back. They fixed it in less than 1/2 hour. Did a flash update to the PCM. He said that the Jeep had a long list of codes related to this failure, and that the new flash update is brand new. We'll see if it lasts.

On another note, the throttle tip-in is a little quicker now. They must have adjusted that too.:D
 
#25 ·
I just checked my fuse box on the '14 Limited with the 8.4AN and every one of the larger green, purple, and beige 30 and 40 amp fuses seated with a noticeable "click" when I pushed down with my finger. The ground straps and battery cables appeared to be tight.

I was checking because the wife told me her seat setting had disappeared yesterday. When I checked, both seat settings had disappeared. I thought it might have just lost the setting to pair with the FOB but that was not the case. The settings were not working even when pushing the buttons on the door. We both reset and saved the settings and they seem to be working again, even with the FOBs.
 
#27 ·
All,

I was considering purchasing a 2014 Jeep. After seeing these posts, I have to admit I am concerned. How would you guys gauge this issue? In other words, are you confident Chrysler will figure out what is wrong, has figured what is wrong? Before I buy should I have the dealership check anything? Please help, love the 2014, but....
 
#29 ·
At 744 miles we had a "Christmas Tree Event" which also included no speed odometer or odometer as well as a Uconnect error message that said "cannot be accesses while moving" while we were sitting still. Dealer replaced ABS Module.

Now at 2500 miles, aside from one time condensation in headlights, not another problem.

***We love our '14 in soooooo many ways and highly recommend it!***

One note: There is a Chrysler Bulletin saying that both Chrysler and Apple are aware that the IPhone4 is not compatible with Uconnect. It says both are working on the issue with resolution TBD.
 
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