The biggest change for the refreshed Grand Cherokee is a new turbocharged 3.0-liter V-6 diesel enginem, named EcoDiesel, which joins the lineup with 240 horsepower and 420 pound-feet of torque. It brings with it a best-in-class tow rating of 7,400 pounds (matching the HEMI V-8's rating), and a 30 mpg highway rating. While output for the 3.6-liter Pentastar V-6 and 5.7-liter HEMI V-8 remain the same (290 horsepower and 360 horsepower, respectively), a new eight-speed automatic transmission boosts fuel economy and performance across the board. The V-6 now has an EPA highway rating of 25 mpg while the V-8 highway rating rises to 21 mpg.
The SRT8 Grand Cherokee returns for 2014 but drops the 8 in the nameplate making it simply the Jeep Grand Cherokee SRT. It also receives a new eight-speed automatic transmission which boosts fuel economy and features new Launch Control and Track modes that can send up to 70 percent of the torque to the rear wheels.
Both the front and rear fascias have been revised with LEDs, slimmer headlights, and new exhaust outlets on some models. Inside the upgrades are even more substantial with new materials like Natura leather and open-pore wood trim. Chrysler's latest Uconnect Access and 8-inch color touchscreen are available, and an 825-watt Harmon Kardon sound system is an option.