2009 Jeep Grand Cherokee on 2040-cars

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Chrysler recalls 468,700 Jeep Grand Cherokees, Commanders over rollaway risk

Chrysler has issued a recall covering a combined 469,000 units of the 2005-2010 Jeep Grand Cherokee and the 2006-2010 Jeep Commander (inset). Of that number, 295,000 are in the US, roughly 33,000 in Canada and Mexico and the remainder in other markets. It seems an electrical fault in the transfer case can allow the affected SUVs to shift into neutral on their own, while an Associated Press report says that Chrysler had "found cracks in a circuit board that turns the four-wheel-drive system on and off." The issue was discovered when an owner started his car remotely and it rolled away.
Chrysler is expected to begin notifying owners in June 2013, who can then take their cars to dealers. The dealer will reflash the final drive controller free of charge. There's a bulletin from the National Highway Traffic Safety Administration below with more information.

NHTSA upgrading Jeep Grand Cherokee, Dodge Durango headliner fire probe

The National Highway Traffic Safety Administration investigation into headliner fires experienced by a small number of Jeep Grand Cherokee and Dodge Durango owners has been upgraded to an engineering analysis, the step before the initiation of a recall. In August last year the investigation began with 146,000 Grand Cherokees from 2012 after three complaints were received, but a report on Edmunds says it has been expanded to include 593,299 vehicles covering the 2011-2013 model years for the Jeep and the Dodge Durango, which uses the same headliner assembly, because of possibly 52 incidents of fire.
In some of those incidents drivers have reported a burning odor, smoke or open flames that were contained to the headliner or migrated to another area of the passenger compartment. The culprit has apparently been found: NHTSA blaming an electrical short in the sun visor vanity light wiring, which is routed under the headliner and held in place by three screws. Chrysler began its own probe into the issue when it was first reported and is still looking into the situation while, "fully supporting the National Highway Traffic Safety Administration's investigation."

Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds

Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and gets from 0-60 miles per hour in 4.8 seconds. When it leaves Hennessey's garage floor after the upgrade it has 650 horsepower - 530 hp at the wheels, according to Hennessey - and gets to 60 mph in 3.9 seconds on its way to running the quarter-mile in 12.6 seconds.
There's more than just a Roots-type supercharger bolt-on, with ported cylinder heads and high-flow headers among the many changes made to the engine. You can watch this pre-2014 facelift silver model prove its spec sheet on the drag strip in the video below.