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My daughter just purchased a new grand cherokee diesel. At approx three thousand miles, warning appeared and jeep would not exceed 30mph. Took to dealer and they had to do a manual regeneration. They could not answer why it did not regenerate on its own, nor whether they fixed the issue for good. My question is, how often should the jeep be regenerating..she has put on an additional 1000 miles since the service and no automatic regeneration has occurred. Anyone else have that issue??
 

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It seems that they are supposed to regen on their own in the background, only giving indication of it needing to be done if it hasn't had sufficient time at speed/under load to regen in the background. I tend to believe this is the case because we are at 3000 miles too and I've had no indication from the display that a regen was occuring. Further, at least once I've gotten home and the exhaust has been really, really hot after driving that would not normally result in that, so I'm thinking it was regenerating and I didn't even know it.
 

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Thank you kindly for the link!! Very informative and helpful. I will ask her about the warning...this is a great forum, glad i signed up.
 

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EVIC message process flow...

Exhaust System – Regeneration Required Now

"Exhaust Filter XX% Full Safely Drive at Highway Speeds to Remedy" will be displayed on the Electronic Vehicle Information Center (EVIC) if the exhaust particulate filter reaches 80% of its maximum storage capacity. Under conditions of exclusive short duration and low speed driving cycles, your diesel engine and exhaust aftertreatment system may never reach the conditions required to cleanse the filter to remove the trapped PM. If this occurs, the “Exhaust Filter XX% Full Safely Drive at Highway Speeds to Remedy” message will be displayed in the EVIC. If this message is displayed, you will hear one chime to assist in alerting you of this condition.

By simply driving your vehicle at highway speeds for up to 20 minutes, you can remedy the condition in the particulate filter system and allow your diesel engine and exhaust after-treatment system to cleanse the filter to remove the trapped PM and restore the system to normal operating condition.

Exhaust System – Regeneration In Process Exhaust Filter XX% Full

Indicates that the Diesel Particulate Filter (DPF) is selfcleaning. Maintain your current driving condition until regeneration is completed.

Exhaust System – Regeneration Completed

Indicates that the Diesel Particulate Filter (DPF) selfcleaning is completed. If this message is displayed, you will hear one chime to assist in alerting you of this condition.

Exhaust Service Required – See Dealer Now

Regeneration has been disabled due to a system malfunction. At this point the engine Powertrain Control Module (PCM) will register a fault code, the instrument panel will display a MIL light.

Exhaust Filter Full – Power Reduced See Dealer

The PCM derates the engine in order to limit the likelihood of permanent damage to the after-treatment system. If this condition is not corrected and a dealer service is not performed, extensive exhaust after-treatment damage can occur. In order to correct this condition it will be necessary to have your vehicle serviced by your local authorized dealer.
 

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Is the issue with the Exhaust Filter Regeneration a question of engine temperature and thus solvable by long trips, even if in town, or is it a question of airflow and speed of a vehicle, and thus a matter of getting on a highway?

The day I bought my car, the light was on, and it took 9 miles of driving to get it to go away. No problem, given that my Jeep was sitting on a lot for a month and had been turned on and idled every day for 45 days with no driving.

But, with 4,500 miles on it, I got the message again, and I do a highway trip probably 3 times a week at 20 miles each way... I shouldn't be getting a regen problem. Today, I drove 30 miles on the Interstate at 65-70 and did not even get to the "50% regenerated, keep driving" message. Still red. I got off the highway and am wondering if something else is going on.

Also, I just got my Change Oil light a few days ago... Wondering if there is any correlation. Doing the oil change early next week at the dealer so we can see what they say about the regen.
 

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I noticed that when I had a check engine light remote start would not work..... I wouldn't be surprised if regen is also disabled if there is an indicator under certain circumstances.. If I were you I would reset the change oil light, I think it's on without starting then the gas peddle to the floor three times in 10 sec. It's in the manual. then see if it will regen. Of course I would not forget the oil change.
 

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So, an update. I had another 30 miles on the highway today, and no regeneration took place. But, instead, I got the Exhaust Filter Full and the Electronic Throttle error lights, and thus a third gear only drive... max about 30 MPH before the revs get way to high...
So, I called Jeep US who did not have any technicians who could tell me if it was safe to drive to the dealer like that. So, called the dealer, who told me if I could find a route that was safe at 25 MPH, to drive it, otherwise tow.

Anyone know if driving the Jeep with the "lame" transmission is dangerous even for the 6 miles to the dealer. They told me to do it, I'm just not trusting them right now.

Also, just a note, from this morning when I got the Drive at Highway Speeds to regen light to the "lame" tranny kicking in, was only about 75 miles. Beware... would hate to be on a trip when this happens. Not loving my confidence in this new Jeep.
 

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So, an update. I had another 30 miles on the highway today, and no regeneration took place. But, instead, I got the Exhaust Filter Full and the Electronic Throttle error lights, and thus a third gear only drive... max about 30 MPH before the revs get way to high...
So, I called Jeep US who did not have any technicians who could tell me if it was safe to drive to the dealer like that. So, called the dealer, who told me if I could find a route that was safe at 25 MPH, to drive it, otherwise tow.

Anyone know if driving the Jeep with the "lame" transmission is dangerous even for the 6 miles to the dealer. They told me to do it, I'm just not trusting them right now.

Also, just a note, from this morning when I got the Drive at Highway Speeds to regen light to the "lame" tranny kicking in, was only about 75 miles. Beware... would hate to be on a trip when this happens. Not loving my confidence in this new Jeep.

I was on a trip when this happened and had to leave the vehicle, encounter expensive taxi to an airport to rent a car....all the while Chrysler roadside assistance could have cared less! The dealership is doin some sort of "rapid response" system update that is supposed to fix this problem. Now I have to drive back 3 hours to the dealership it was towed to. Hope I can get reimbursed as this cost me alot of money when they knew about this problem prior to me purchasing the vehicle. Just wondering how big a problem this is going to continue to be.
 

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I was on a trip when this happened and had to leave the vehicle, encounter expensive taxi to an airport to rent a car....all the while Chrysler roadside assistance could have cared less! The dealership is doin some sort of "rapid response" system update that is supposed to fix this problem. Now I have to drive back 3 hours to the dealership it was towed to. Hope I can get reimbursed as this cost me alot of money when they knew about this problem prior to me purchasing the vehicle. Just wondering how big a problem this is going to continue to be.

Me again....Jeep broke down again with same problem after dealer said they installed the "reprogram". This is dangerous when it drops suddenly with no power. Can't take the vehicle any futher than I can limp back home wit!
 

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Ours is doing the same thing. We get the exhaust message all the time. Has about 5000 miles on it, just had the oil changed. I was driving it on a road trip and the message to "safely drive at highway speeds to remedy the problem" popped up. I was already on the highway so of course I kept driving. I drove 90 miles at 70mph and the same message kept popping up over and over again. When my husband took it out the next day (also 10 HWY mile trip) he got the error message limiting him to 30mph. That's the first time it's ever done that. We also got a couple of check engine light codes. 1 was loss of communication with the ABS system and I forget what the other one was. It's at the shop now (luckily he was <1mile from the dealer when the error came up). I can't say I am super thrilled with my new car already broken down in the shop. I love the car, but I fear reliability is going to be an issue with this thing.
 

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I'm having the same problem. Just shy of 10,000 miles the "drive at highway speeds to remedy" warning popped up. But I was an hour and a half or so away from any highway. 20 miles later it went into limp mode. Jeep needs to get their act together on this. The engine should be able to go through a regeneration cycle without driving it at highway speeds. I own several mid size trucks, 23,000 lb Hinos and UDs. They all have modern diesels with particulate filters that require regeneration. If these trucks are sitting at idle in the parking lot and they need a regen cycle they throttle up for twenty minutes or so and regenerate themselves. If Hino and UD can figure out how to do that, why can't Jeep? In my opinion, the Jeep Ecodiesel's inability to do that is the result of lame engineering.
 

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Jeep Ecodiesel at 9,000 miles and back in the shop 3rd time in 2000 miles for the sudden deceleration and the electronic throttle control lightening bolt symbol coming on. Filed claim with Chysler, and they are saying he dealership ran a "flash" again for the 3rd time and the car is fixed. I don't have confidence, and hope I don't end up getting hurt with the car suddenly decelerating without warning. I also filed a complaint with the NHSTA and was assigned an OID#.
 

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The dealer still has my GC Eco Diesel. It's been out of service for 12 days now. They can't get all the codes thrown to clear and stay clear. The mechanic has been trying his best and has been reportedly even yelling at his support people at Chrysler on the phone. I've been very tempted to start the process of getting Chrysler to take it back, but what am I going to buy instead? There just isn't anything out there like it. Nothing that has great off road chops, can tow 7200 lbs, and gets decent mileage. The closest I can get is a Landcrusier, for another 25k. At least it has the towing capacity and the off road chops. Unfortunately it sucks gas like there is no tomorrow. Beamer X5 diesel can't tow more than 6,000 lbs and doesn't have the off road chops. Porsche Cayenne Diesel the same, and Mercedes and VW Tourag also the same.

I still believe the Jeep GC Eco Diesel is a great vehicle. I just wish they had sorted out all of the engineering issues before they brought it to market.

If they can't get it to run in the end, I'll probably get the V8 version of the Grand Cherokee or go back to driving a beast like the GMC Sierra 2500HD with a Duramax Diesel.
 

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Picked up my GC Eco Diesel from the shop n July 3rd for the 3rd time with this problem of vehicle going limp with the lightening bolt symbol. Was passing cars on two lane road when it wen limp in the middle of the pass. Lightening bolt light flashed on and the vehicle eventually recovered itself instead of stranding me this time. Getting to the point where Iam going to get Chryslet to take it back. Better to buy something else than get killed in this thing.
 

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Picked up my GC Eco Diesel from the shop n July 3rd for the 3rd time with this problem of vehicle going limp with the lightening bolt symbol. Was passing cars on two lane road when it wen limp in the middle of the pass. Lightening bolt light flashed on and the vehicle eventually recovered itself instead of stranding me this time. Getting to the point where Iam going to get Chryslet to take it back. Better to buy something else than get killed in this thing.
So Jeep dealership service is saying that because I am a 'two footed' driver, I am causing the vehicle to get confused on the electronic side of things. I have asked for this to be put in writing, as when I bought the car I was not told you had to drive a specific way. They are replacing a sensor and said they were going to 'reprogram' the break activation a 1/2 inch??? Also, this has happened when I was driving on the interstate with no braking involved. Just curious to whether others are "two footed" drivers in this chain of posts?
 

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The dealer still has my GC Eco Diesel. It's been out of service for 12 days now. They can't get all the codes thrown to clear and stay clear. The mechanic has been trying his best and has been reportedly even yelling at his support people at Chrysler on the phone. I've been very tempted to start the process of getting Chrysler to take it back, but what am I going to buy instead? There just isn't anything out there like it. Nothing that has great off road chops, can tow 7200 lbs, and gets decent mileage. The closest I can get is a Landcrusier, for another 25k. At least it has the towing capacity and the off road chops. Unfortunately it sucks gas like there is no tomorrow. Beamer X5 diesel can't tow more than 6,000 lbs and doesn't have the off road chops. Porsche Cayenne Diesel the same, and Mercedes and VW Tourag also the same.

I still believe the Jeep GC Eco Diesel is a great vehicle. I just wish they had sorted out all of the engineering issues before they brought it to market.

If they can't get it to run in the end, I'll probably get the V8 version of the Grand Cherokee or go back to driving a beast like the GMC Sierra 2500HD with a Duramax Diesel.
So Jeep dealership service is saying that because I am a 'two footed' driver, I am causing the vehicle to get confused on the electronic side of things. I have asked for this to be put in writing, as when I bought the car I was not told you had to drive a specific way. They are replacing a sensor and said they were going to 'reprogram' the break activation a 1/2 inch??? Also, this has happened when I was driving on the interstate with no braking involved. Just curious to whether others are "two footed" drivers in this chain of posts?
 

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Is the issue with the Exhaust Filter Regeneration a question of engine temperature and thus solvable by long trips, even if in town, or is it a question of airflow and speed of a vehicle, and thus a matter of getting on a highway?

The day I bought my car, the light was on, and it took 9 miles of driving to get it to go away. No problem, given that my Jeep was sitting on a lot for a month and had been turned on and idled every day for 45 days with no driving.

But, with 4,500 miles on it, I got the message again, and I do a highway trip probably 3 times a week at 20 miles each way... I shouldn't be getting a regen problem. Today, I drove 30 miles on the Interstate at 65-70 and did not even get to the "50% regenerated, keep driving" message. Still red. I got off the highway and am wondering if something else is going on.

Also, I just got my Change Oil light a few days ago... Wondering if there is any correlation. Doing the oil change early next week at the dealer so we can see what they say about the regen.
by the way....all my problems started once that change oil light came on.
 

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I'm not a two footed driver.

My GC EcoDiesel has been out of service for 21 days now. They just replaced the catalytic converter. And next they will replace an O2 sensor. Even if they get it to run without throwing codes again, the underlying engineering problem remains. This vehicle is incapable of "parked regeneration". To regenerate it must be driven at highway speeds. What rocket scientist at Jeep/Chrysler/Fiat thought it was a good idea to put in an engine that requires driving at highway speeds to clear a problem? I mean, the vehicle is designed for serious off road play. How many Jeep Ecodiesel owners are going to get stuck in limp mode, stuck in 3rd gear, in the back country somewhere because they can't get to a highway and drive at highway speeds to regenerate? Someone, maybe many, at Jeep are spending way too much time in their cubicles and not enough time driving these things in the environments they are intended for.
 
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