Door actuator, overheating, transmissions slippage (or not wanting to shift at times), tail lights, cooling, heating (or lack of).

- White Lake, MI, USA

I started hearing creaking noises inside the dash several months ago. This would normally occur when I turned the engine off, or turned the heat or A/C off. A week ago the passenger side vents starting blowing cold air only, regardless of temperature settings. I was told at my mechanic that this was a known blend door issue with 1999 to 2004 Jeep Grand Cherokee. I was told this would be approximately $1000 to repair.

- Baltimore, MD, USA

Climate controls stopped working. No warning just one day started blowing warm air out of passenger side and cold air out of driver side. The winter season is upon us now and somehow I need to find $1400 so I don't freeze while commuting back and fourth from my job. Its a blend door that stopped working? after searching around for an answer, I find that this problem has affected an overwhelming number of other Jeep owners.

- Cranberry Twp, PA, USA

Ventilation system, I have a noise in the dashboard and my vents are blowing cold air, and it is a dual heating system. This is going to cost me $800 to fix. I hear this is a recurring problem in this vehicle and has anything been done about it.

- Midlothian, VA, USA

The blower motor resistor has melted! (fire hazard) now we only have cold air blowing from our vents. No heat. Someone said it is the blend doors. Apparently lots of ppl have this problem! (it is soon to be winter time) also, creaking/motor sounds come from the dash when the vehicle is off"!"!

- Cedar Hill, TX, USA

Failure of blend doors in heater/defogger of vehicle. Jeep has known about these cheap parts for some time. The repair costs over $1000 because it is labor intensive, the complete dash panel has to be removed to access where the blend doors are located. The part costs are only about $150 at most! with the failure comes no warm/hot air from the heater, consequently no defrosting of the windshield.........a severe visibility problem!! Jeep/Chrysler should be picking up all, or at least most of the cost of this repair. The original parts were cheaply made and are subject to wear out within only a few years. I recently had to pay for this repair myself. I could not do without the defroster during winter months. I had to pay for it out of my own pocket. I would like to see Jeep/Chrysler refund some of that cost to me, it would only be fair. Do a search on the internet, and you will see the numbers of these same failures for several Jeep year models.

- Citrus Heights, CA, USA

Visibility: Defroster/defogger system:windshield:blower I have a 2000 Jeep that the defogger does not work properly, and from what I have learned, Chrysler has known about this problem for some time and has failed to act on the problem as far as a recall! this is a dangerous issue with most Jeep. This failure occurs everyday due to the fact the blend doors are broken as part of faulty manufacturing. I can't even defrost the windshield due to this problem. I don't mind fixing the problem, but when I learn that Chrysler knew of this problem long ago, I think they need to bear some of the burden. Thank you.

- Raleigh, NC, USA

The heat/ac unit on my 2000 Jeep Grand Cherokee stopped working on the passenger side, now the driver side has no heat. It appears to be a major problem with all Jeep 1999 and newer, and it has never been a subject of a recall.

- Bristol, RI, USA

Automatic climate control system acts erratically. Regardless of what settings are used, hot air will blow out one side while cold blows out the other. Sometimes which side is cold or hot will switch. I am filing this with the NHTSA because this is a major safety hazard. Because my automatic climate control doesn't work correctly, I have no windshield defroster. We have been receiving a lot of rain lately and the temperatures have been dropping. My windshield keeps getting foggy and I can't clear it. I have to pull over and wipe it off with a towel just to have it fog up again a few minutes later while I'm trying to drive. In the winter, the windshield will freeze over and it is very difficult to keep clear visibility. I can deal with being uncomfortable, but no defroster is a major problem. I have taken the vehicle into a dealership and have been told the cost of repair will be at least $1200. After researching online, it appears this is a very common problem. My fathers 99' Jeep Grand Cherokee had the same problem. Jeep has identified a design flaw and has replacement parts, but they will not fix the problem under warranty unless the vehicle is still in warranty. This is a major design flaw and a major safety issue. Jeep didn't have a fix for this until the Jeep was well out of warranty. I put today's date as the incident date, but this has been happening for the past year. It is considerably worse now and the vehicle will be unsafe to drive this winter.

- Tulsa, OK, USA

2000 Jeep Cherokee limited dual climate control, it started with no heat on the passenger side and now the drivers side is blowing cold air also (no heat). Dealer knows its a issue and its not covered under the warranty.. (temp. Control doors made of plastic) this should be a recall for defected parts and design....

- Palatine, IL, USA

Defroster/defogger system:windshield:blower, HVAC system failures repeatedly. Dealership charges $800 to $1500 per incident. First time evaporator core goes bad, second time blend doors go bad, third time fan motor goes, forth time fan motor and thermostatic resistor that controls fan goes bad, fifth time blend doors go again, sixth time thermostatic resistor and its wiring harness burn up, seventh time, recirculate/fresh air door breaks off inside unit. 2000 Grand Cherokee limited with dual zone automatic climate control system.

- St. Pete, FL, USA

Only cold air blows from the right side vents on my 2000 Jeep Grand Cherokee. This began the end of this past winter. This problem affects the heat vents and the defrost vent, therefore causes a safety hazard, as the right side windshield ices up. From my searches, this appears to be a big problem, effecting many Jeep owners. My mechanic at the dealership, said it would be about a grand to fix. He also did not even ask me if I wanted to get it fix, almost like it was too time consuming and did not want me to get it fixed. So, therefore I have not had it fixed yet.

- St. Paul, MN, USA