What is the basic warranty on 2012 Jeep Grand-Cherokee?

The basic warranty on a 2012 Jeep Grand Cherokee is a 3-year/36,000-mile powertrain limited warranty. This covers the engine, transmission, and other major powertrain components. There's also usually a shorter basic warranty on other parts of the vehicle (bumper-to-bumper), but the specifics of that length (in years and miles) would depend on the specific trim level and any additional packages purchased at the time of sale. To know the exact terms of the original bumper-to-bumper warranty, you'd need to consult the original owner's manual or a dealer.