2007 Jeep Grand Cherokee Limited on 2040-cars

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NHTSA investigating power modules on Chrysler Group SUVs and minivans

The Center for Auto Safety is officially petitioning the National Highway Traffic Safety Administration to begin scrutinizing alleged problems with the totally integrated power module (TIPM) on about 24 Chrysler Group SUVs and minivans. The advocacy group claims that the part's failure can cause affected vehicles to stall or not start at all. NHTSA is still looking into the accusations and deciding whether a full investigation is actually warranted.
The CAS petition claims at least 70 TIPM failures, but according to NHTSA, six of the complaints are for models that don't have the modules. In 34 of the reported cases, the vehicles refused to start, and in 17 of them the engine stalled. There were also two allegations of smoke and one of a fire. However, none of these affected airbag deployment or resulted in a crash.
This petition isn't the first TIPM-related problem for Chrysler Group. A recent report in the New York Times alleged that it found 240 complaints potentially related to the issue on NHTSA's website alone. In September, the automaker also recalled 230,760 examples worldwide (188,723 in the US) of the 2011 Jeep Grand Cherokee and Dodge Durango replace the fuel pump relay circuit inside of the TIPM-7 with one external to the unit. The original part could allegedly cause the models to stall without warning. Even earlier, the company also recalled about 80,000 examples of the Jeep Wrangler and Dodge Nitro in 2007 to have the module reprogrammed.

2017 Jeep Grand Cherokee spied looking refreshed

Jeep is preparing another facelift for the Grand Cherokee. Spied here undergoing testing, the updates to the upscale SUV look like they'll be fairly limited in scope. The current WK2-generation Jeep Grand Cherokee was introduced in 2010 as a 2011 model, replacing the round-eyed WK model that had been around since 2005. It underwent a mild update last year and is now gearing up for another round. This refresh appears to have a new front fascia with wider-spaced grille slats, and though hidden from view, will likely incorporate a restyled bumper with new fog lights. Expect some revisions inside the cabin to accompany the new face, and some updated engines, too. The current base model's 3.6-liter Pentastar V6 is anticipated to offer more power and get better fuel economy, plus offer flex-fuel capability. Of course, the 5.7-liter Hemi V8 will also likely be offered, and if we're lucky, an even more powerful SRT performance model, too. The updated JGC is expected to arrive in the first quarter of the new year. Jeep will be marking its 75th anniversary then, so expect some special editions of this and other models in the portfolio to arrive in true Jeep style. In the meantime, you can check out the spy shots in the gallery above. Related Video:

Watch a Cayenne Turbo S, Range Rover SVR, and Cherokee SRT drag race

We live in a weird world where high-performance SUVs could win a 60-mile-per-hour sprint against sports cars from just a few years ago. Here, Top Gear sets up a three-way drag race against the Porsche Cayenne Turbo S, Land Rover Range Rover Sport SVR, and Jeep Grand Cherokee SRT, and the results show just how quickly these high-riding models can cross the quarter mile. The Cherokee SRT is the patriotic choice among the three, but it's down on power in this fight. Meanwhile, the Range Rover's menacing growl sounds the best, and the Cayenne Turbo S has the most horsepower. You'll have to watch the video to see which SUV will win this battle. Related Video: