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Chrysler defies NHTSA, says it won't recall 2.7M Jeep Grand Cherokee, Liberty models

Facing a possible recall totaling around 2.7 million of its most popular SUVs, Chrysler remains insistent that the 1993-2004 Jeep Grand Cherokee and 2002-2007 Jeep Liberty are safe vehicles. This comes on the heels of a recall request from the National Highway Traffic Safety Administration for these two models due to fuel tanks mounted behind the rear axle, which could possibly be ruptured during severe rear-end collisions, leading to an increased risk of fire. In response to the allegations, Chrysler says that it does not agree with NHTSA nor does it plan on recalling either vehicle.
Chrysler said both SUVs "met and exceeded" the requirements for fuel-system integrity, and cooperated fully with NHTSA since the investigation was opened in 2010. While 15 deaths and 46 injuries have been reported from fires caused by rear-end collisions on these models, Chrysler is claiming that the vast majority of incidents cited by NHTSA were "high-energy crashes," including one where a stopped Grand Cherokee was rear-ended by a tractor trailer going 65 miles per hour.
The automaker wraps up by saying "NHTSA seems to be holding Chrysler Group to a new standard for fuel tank integrity that does not exist now and did not exist when the Jeep vehicles were manufactured." Scroll down for Chrysler's official response to NHTSA, but we're pretty sure this isn't the last we've heard on this issue.

FCA's Pentastar V6 gets more power, efficiency for 2016

Already a vital member of FCA's powertrain lineup, the 3.6-liter Pentastar V6 is receiving major efficiency improvements for 2016. Thanks to a massive amount of new tech attached to the mill, fuel economy is up six percent, and torque below 3,000 rpm jumps nearly 15 percent. The updates arrive first in the 2016 Jeep Grand Cherokee, but they should proliferate to other models eventually. At least in the Grand Cherokee, the tweaks push power up five horsepower to 295 ponies. FCA's engineers went through the Pentastar from top to bottom to eke out as much efficiency as possible. For example, there's now a two-speed variable-valve lift system that can run in low- or high-lift modes. This upgrade is responsible for 2.7-percent better economy, the company claims. A new intake manifold with longer runners and updated variable-valve times also helps boost the torque output. Further improvements come from pushing the compression ratio to 11.3:1, from 10.2:1 before. Perhaps most impressive is that despite all of the innovations, the latest Pentastar actually weighs four pounds less than the current version. Beyond the Pentastar improvements, all of the FCA US gasoline engines, except for the Viper's 8.4-liter V10, will be E15-compatible for 2016. The company says that it wants to be ready for the higher ethanol content fuel's greater use in the near future.

Chrysler recalling nearly half a million vehicles with active head restraints

Chrysler has announced that it will recall roughly 490,000 vehicles around the globe due to a potential active head-restraint problem. The problem is being blamed on "potentially faulty microcontrollers" that may keep the vehicles' anti-whiplash active safety feature from working properly. Chrysler says it has no knowledge of any accidents or injuries related to the issue. Models covered under the recall include the 2011-2013 Chrysler Sebring, 200 (shown) and Dodge Avenger models, along with 2011-2013 Jeep Liberty and 2011-2012 Dodge Nitro SUVs.
Interestingly, the Pentastar notes that the faulty part came from an (unnamed) supplier who furnished the parts in the wake of Japan's 2011 earthquake and tsunami, natural disasters which decimated the world's supply of microcontrollers.
Chrysler says of those nearly half a million vehicles affected, around 442,000 of them reside in the US, with an additional 25,000 in Canada and 10,000 units in Mexico. A further 12,000 models were shipped beyond the NAFTA region. The Auburn Hills automaker will begin sending out recall notices shortly, and technicians will upgrade the system software or replace the microcontroller as necessary at no cost to owners.