According to this post from carcomplaints.com there is a ranking of the worst Jeep Grand Cherokee model years based on consumer complaints. It appears as though the 2011 Jeep Grand Cherokee was the model year with the most complaints the Jeeps. This specific graph containing information on the jeeps does not indicate what the problems were, where the problems were for the ultimate resolution. However, you can do some online research to determine the nature and extent of the various problems associated with the Jeep Grand Cherokee’s, various model years.
Obviously, the individual user experience will be different for each vehicle. This does not mean that you should completely overlook an excessive amount of imported complaints with regard to a specific vehicle. CarComplaints.com appears to be an excellent resource to research complaints on various vehicles. To go to their webpage look at the reports complaints for the vehicles. If you are doing research on purchasing either a new or used vehicle it cannot hurt to research the vehicle on this page. Then you can see if there were a lot of complaints, and model of the and/or the specific complaints that were made against a specific model year. It appears to be an excellent, free resource. They should be able one part of the court purchasing process.
If you have a vehicle with many complaints whether it be a new vehicle or a used vehicle, you might have a vehicle which might warrant a refund or some sort of compensatory damages. For new vehicles would pursue a claim under the lemon law. For a new vehicle you would pursue a claim under the used lemon law for a simple breach of warranty claim. In New Jersey the used car lemon law is not very effective and is extremely limited. Consumers have their rights under the Uniform Commercial Code. With new vehicles have a significant amount of additional rights due to the overlay of the New Jersey Lemon Law.