The CVT is a continuously-variable ratio gearbox made by JATCO for Chrysler. They were used in the Caliber/Compass (PM) and the Patriot (MK). http://www.allpar.com/mopar/transmissions/CVT.html The supply contract between the two companies does not allow dealerships to rebuild these units. Basically the old one comes out and a new one goes in if there is a failure. Remans are probably not in the cards as there are not enough of these units failing out there to make a reman service worth their while. A fluid and filter service is not in the scheduled maintenance listed in the owners/service manuals. It is one of those 'filled for life' units. Granted it is a synthetic oil (use CVTF+4 only) and should have no problem being a lifetime fill under normal driving conditions, but for harsh-duty and environments or plain peace-of-mind, you can service the transaxle yourself if you desire. It has 2 filters, one flat filter in the sump when the pan comes off and another cylindrical one up behind the oil-to-water cooler that is bolted to the drivers side of the case. It is the aluminum can with 4 hoses to it. The hoses can stay on while you change the filter inside the housing. There is a replaceable pan gasket (Mopar# 5189838AA) and 2 magnets in the pan. There is no dipstick, but you can use a flexible length of old speedometer cable (or equivalent) to shove down the tube to measure the level before beginning and again after the service. Listen for the 'clunk' at the pan bottom and go no further. The level for mine on level ground while sitting overnight was about 2 1/2" (6.3 cm). The fill for mine on level ground and sitting overnight was about 6 quarts (5.7 litres). After completing the service, put the shift lever through the ranges with the engine running and your foot on the brake. Then put it in Park, shut off the engine, recheck for leaks and proper level. The parts that you will need is fluid: CVTF+4 (Mopar# 5191184AA) or any fluid that meets Chrysler's MS-12106. Mopar or Valvoline makes CVT fluid that meets this spec. The fluid is dyed green, it is not your conventional red ATF. Castrol also had a CVT fluid, it covered Hondas specs, but did not mention MS-12106. Expect about $10 a quart. I retorqued the valve body bolts while the pan was off and to let it drip awhile. They are 70 inch/pounds (8 nm). I got about an 1/8 turn tighter on all of them. Mopar and many others have the pan filter (Mopar # 5191890AA). The 'generic' part # is FK-409. It may even come with the pan gasket. Mopar does not service the cooler filter, but I was able to buy that aftermarket. The 'generic' cooler filter # is FK-403. The cooler filter is shown in the factory service manual, but not the Mopar parts catalog. Chrysler has released upgraded software for engine/transaxle controllers over the years. Making sure that you are at the latest and greatest software release, will ensure best performance, shift quality and longevity. A TSB (18-031-07) is shown here. It is not a recall, but may be covered under an 8/80 extended emissions warranty if it affects the PCM portion of the controller: http://www.wkjeeps.com/misc/Caliber/TSB/Caliber_1803107.pdf There is also a TSB 21-010-11 for some newer CVTs. Ask your dealer if any apply to your vehicle.