The in-dash heater/ac blend door is malfunctioning causing air flow not to be properly diverted between lower dash vents, dashboard vents and defroster vents. This is creating an unsafe condition whereby the windshield will not clear in rainstorms and will not stay defrosted in winter driving. A search on the internet and along with discussions with a local dealer working with Jeep for many years has led me to understand that this is a long-known and very common defect with Jeep Grand Cherokee. Prices to replace this blend door have ranged from $1000 to $1500 due to the fact that this is a very labor intensive replacement. I contact Chrysler assistance and they suggested that I contact you to identify this safety concern so that perhaps a technical service bulletin (tsb) could be issued and Chrysler would address the defective blend door for consumers experiencing this safety issue.

- Shavertown, PA, USA

The contact owns a 2000 Jeep Grand Cherokee. The heat/defrost function failed in the vehicle. During the winter, the contact must remain cold in the vehicle and the windows become foggy instead of defrosting. The vehicle has been to the dealer twice and they stated that there was possibly a condenser leak in the heater, which caused the control lever for the heating unit to deteriorate. The contact stated that the repair was too expensive. He has found several complaints regarding this failure with the same model; therefore, he believes that the manufacturer should issue a recall. A relay shorted out due to a failure with the heating mechanism and the entire vehicle filled with smoke. There were no injuries. The vehicle has not yet been repaired. The VIN was unknown. The failure mileage was 60,000 and current mileage was 90,000.

- Pittston, PA, USA

Brake rotors warp easily, door latches brake down, air conditioning system makes noises and does not work properly.

- Keego Harbor, MI, USA

I own a 2000 Jeep Grand Cherokee limited. The events leading up to the failure of the ventilation system were (1) rapid fogging of front windshield, (2) fogging of front passenger windows, (3) failure of passenger heat while still maintaining driver heat function, and (4) only cold air release on passenger side of Jeep. Consequently, (1) the windshield and front windows do not defog, and (2) no heat whatsoever comes from the passenger side floor and dashboard ventilation system. To correct this problem, a "blend air door" is necessary at a cost of approximately $1,400. According to the certified service department at the local Jeep dealer and online forums, this has become a very common problem for 2000-2004 Jeep Grand Cherokee limited's with dual zone ventilation systems. Given the mileage of the vehicle at the time of 110,000, I thought it a reasonable failure. Later I found out this is a very common failure. 14 months later, the heater began having problems again and seemed not to respond to the controls. The shop says it is the "blend doors" again! I told them they were replaced 14 months earlier and they replied it was a common problem and it seems every service coordinator at this particular dealership had a set of bad blend doors under their desk to show people what the problem is! if this is so common, it seems that Chrysler should be doing something about it! 14 months expected lifetime"? $3K in 14 months just to get a heater working" too much! something must be done!!

- Diamond Springs, CA, USA

The contact owns a 2000 Jeep Grand Cherokee. When the heater was activated, there was no heat coming from the vents. The contact added antifreeze to the vehicle, but the heat still would not work. She took her vehicle to Firestone and they performed a flush. This did not correct the failure, but the pipes became hot. She took the vehicle to the dealer and they stated that the failure was caused by the revolving blend doors and the heating blend doors. The dealer would not repair the vehicle for free because it was not covered by the extended warranty. They stated that they would pay a portion of the repair cost. When she went to have the vehicle repaired, the parts were on back order. When the parts arrived, no one from the dealer called to inform her. The vehicle has not been repaired due to the repair cost. The VIN, engine size, number of cylinders, and powertrain were unknown. The failure mileage was 69,000 and current mileage was 75,000.

- Harrisburg, PA, USA

Air conditioner (A/C) will put out heat when on full cold and neat will put out cold when on heat mode. Air will not blow out vents or defrost but blower motor is working. Started acting up last year and still does it.

- Senatobia, MS, USA

Air conditioner (A/C) blowing cold air out of one side.

- Las Flores, CA, USA

2000 Jeep Grand Cherokee air conditioning evaporator failure with freon leaking into vehicle. Freon displaced oxygen and caused the driver to become drowsy.

- Dorchester, MA, USA

My has a 2000 Jeep Grand Cherokee limited and the air conditioner has melted where it plugs into the resistor that goes to the blower motor. I went to a local salvage yard in hopes of finding a wrecked vehicle similar to ours to but the wiring harness. To my dismay he had 2 but there was only one problem they had burned, with fires starting at the resistor described above. I left Jeep an email explaining what I found and that was afraid ours would come to the same fate. There response was that there were no active recalls on this vehicle and that there was nothing they could do. So I went the a local Jeep dealer to buy a new wiring harness($500 their cost)and was informed there was a patch or fix for the problem. I don't mind spending the money to fix our car but if there was not a serious problem why would there be a patch or quick fix for the problem. We have a 2 yr. Old son and I really don't want my wife to use this car but we have no other choice. I just wonder how many other people have had this same problem and never reported it, now there was a recall on certain Dodge Ram pick ups with this same problem, why hasn't the Jeep Grand Cherokee been recalled?

- Dubach, LA, USA

A fowl odor was seeping into vehicle from air conditioner (A/C). Plastic within unit has melted down and corroded from using heat in winter time. Moisture inside the unit has caused mildew and dealer has sprayed a anti- fungus bacteria on the coils, killing the bacteria, and refreshing vehicle. Odor and fungus still there. Consumer took vehicle back to dealer in June to find out that entire A/C unit had to be replaced for a cost of $ $89 at consumer's cost. Consumer does a lot of traveling, and needs the vehicle for trasnsportation. Consumer please add VIN# and mileage to this form.

- Suffolk, VA, USA

The vehicle experienced an air conditioner control problem.

- Tampa, FL, USA

Feeling miss/jerk at approximately 10 second intervals. Dealer advised it is the air conditioner cycling on/off. Chrysler is aware of the problem, but has no fix available at this time. Says it is due to aggressive compressor engagement.

- Oklahoma City, OK, USA