Jeep Grand Cherokee Limited on 2040-cars

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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.

How to update and secure a vulnerable Chrysler Uconnect system

If you own one of the 1.4 million vehicles affected by the recent Chrysler software recall, you may want to watch this video. In it, we explain how to get the latest infotainment software loaded onto the 8.4-inch Uconnect system. The recall was a response to the findings of researchers who were able to hack into and remotely control a 2014 Jeep Cherokee through its cellular connection. Although Fiat Chrysler has worked with Sprint to plug most of the holes on the carrier side, there are still some vulnerabilities that only this latest software version can patch. Owners have three options to get the update: download it now, wait for a USB stick in the mail, or take the vehicle to an FCA dealer. Chrysler will be sending USB sticks loaded with the software update to customers. Anyone with an internet connection and a USB stick of their own with at least 4 GB capacity can speed things up by downloading the patch from the Uconnect website. We cover that process from start to finish in the video, with the final portion still applicable to those using the FCA-supplied USB stick. If after watching this you still don't want to tackle the patch yourself, you can take your vehicle to the dealer to have it done. Also note that this process is the same for all Uconnect updates, not just the one patching the exploits. Our demonstrator vehicle is a 2015 Ram 1500 pickup. The procedure should be very similar on other products with the 8.4-inch Uconnect system, with only the location of the USB port varying. Once you have the USB stick with the software on it – either after having downloaded it yourself or receiving it in the mail from Chrysler – the installation process is relatively simple. It takes about 15 minutes to perform the update; we edited out the wait in the video. To check whether or not your car's 8.4-inch Uconnect system is running the latest software, go to System Information on the touch screen's Settings page and look at Software Version. The update related to the recall is version 15.17.5. Related Video: Recalls Chrysler Dodge Jeep RAM Safety Technology Infotainment Videos Original Video hacking

Autoblog Minute: Wrangler Pickup, Triumph Fined, Cherokee Production Moves

Autoblog senior editor Greg Migliore reports on highlights from the week in automotive news on this edition of Autoblog Minute. Show full video transcript text [00:00:00] Triumph Motorcycles in violation of the Safety Act, Jeep looks to adjust its vehicle production strategy, and a Wrangler pickup may soon be be produced in Toledo. I'm senior editor Greg Migliore, and this is your Autoblog Minute Weekly Recap. Triumph Motorcycles was hit with a $2.9-million fine because of a failure to submit safety documents to NHTSA in a timely fashion. An investigation of 1,300 bikes in September of 2014 led to this finding. Other violations were then discovered, like the late reporting of quarterly recall completion rates, and Triumph's failure to supply warranty data. Fines for these violations may seem harsh but U.S. Transportation Secretary Anthony Foxx said: "Manufacturers must comply with their reporting obligations. The law requires it, and public safety demands it. When companies fail to meet those obligations, we will hold them accountable." In FCA news, it seems that production of the Jeep Cherokee will be moved from the Toledo plant to a nearby state. Automotive News first reported on this adding that Jeep may produce a pickup alongside Wrangler to fill the void left by Cherokee. Jeep declined to comment on this news. Speculation surrounding Jeep's production plans depends on the automaker's ongoing negotiations with the UAW. Those are the highlights from the week that was. Be sure to check out my full recap this Saturday, including details on Ford's performance Fusion. For Autoblog, I'm Greg Migliore. Autoblog Minute is a short-form video news series reporting on all things automotive. Each segment offers a quick and clear picture of what's happening in the automotive industry from the perspective of Autoblog's expert editorial staff, auto executives, and industry professionals. Jeep Autoblog Minute Videos Original Video Triumph Motorcycles