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2014 Jeep Grand Cherokee probed by NHTSA for brake problems

Remember how Toyota got in all kinds of trouble over unintended acceleration? Well, the National Highway Traffic Safety Administration is investigating Jeep over unintended braking. NHTSA has announced a probe of 20,000 Grand Cherokee SUVs from model year 2014. Nine complaints have been received, with owners alleging that their Jeeps have issued brake warnings or gone ahead and applied the brakes when no threat was presented. Each complaint alleges that the vehicles have exhibited this behavior repeatedly, leading to a "sudden reduction in vehicle speed in traffic." So basically, a system designed to prevent accidents could actually increase the odds of a collision happening. Speaking to the Associated Press, Jeep spokesperson Eric Mayne said owners whose vehicles are exhibiting this behavior should report to dealers, while adding that the automatic braking/adaptive cruise control systems can be deactivated. Related Video: Scroll down for the official bulletin on the investigation from NHTSA. Date Investigation Opened: JUN 01, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15021 Component(s): FORWARD COLLISION AVOIDANCE Manufacturer: Chrysler (FCA US LLC) SUMMARY: The Office of Defects Investigation (ODI) has received nine complaints alleging inappropriate activations of the autonomous braking system in model year (MY) 2014 Jeep Grand Cherokee vehicles. All nine reports alleged unexpected braking incidents preceded by collision imminent brake warnings and resulting in sudden reduction in vehicle speed in traffic. Two complaints reported autonomous braking incidents with no objects on the road resulting in rapid increase in brake force and anti-lock braking system (ABS) activations. The complaints alleged experiencing multiple events at different locations and road conditions. A Preliminary Evaluation has been opened to assess the frequency, scope and consequences of the alleged defect. The following VOQ numbers are associated with the issues discussed in this resume: 10543837, 10713629, 10690650, 10663320, 10630362, 10596913, 10533622, 10533524, 10651269.

Build your own: 2017 Jeep Wrangler Willys Wheeler

While still three weeks from the start of summer, it arrived in practical terms with the Memorial Day weekend. And while the country will have worked through its collective hangover (from too much food, drink and shopping) and gotten back to work, it's worth remembering what – automotively – got us here, preserving both democracy and personal freedoms. The CJ-inspired Jeep Wrangler got us here, and in its Willys Wheeler guise the spirit of America rolls on. As the many spy pics have shown, FCA's Jeep division is working hard to replace its current Wrangler within the next few months. With that, we say goodbye to 10 model years of Wrangling with the current model. And that decade has been a good one for Jeep. Despite the economic downturn between 2008 and 2010, Jeep and Jeep Wrangler sales have been consistent bright spots for FCA, along with – of course – Ram trucks and, uh, Ram trucks. With a new Wrangler around the bend, it's worth taking a look at the existing model. And knowing an all-new example is coming, what would be the reason – if shopping – to consider what's on dealer lots now? Despite the numerous areas of improvement the new model will deliver (in efficiency, refinement and safety) , there's something to be said for a vehicle 10 years into its production cycle. While this is wholly anecdotal, for every step forward a manufacturer makes with a new vehicle, the added tech and necessary complexity seem to mandate two steps back. In an Audi A4, tech would seem a good thing, while in a Wrangler, this Jeep enthusiast would see it as a mixed blessing. Almost 80 years into its evolution (the initial Jeep concept came together in the summer of 1940) little has changed in the Jeep's essential mission. A body-on-frame architecture transports a driver and up to three passengers over paved and unpaved surfaces with credible confidence and a modicum of security. Live axles front and rear enhance the Wrangler's off-road capability, but compromise its on-road behavior. And while a significantly wider track mitigates rollovers, the Wrangler is decades removed from "state-of-the-art" when discussing safety or handling. Currently there's but one engine available in the States, a 3.6 liter normally-aspirated V6 producing 285 horsepower at a you'll-rarely-get-there 6,400 rpm. Connected to either a six-speed manual or ($1,400) five-speed automatic, the engine moves the 4,000-pound (loaded) Wrangler with measured confidence.

2018 Jeep Wrangler four-cylinder fuel economy revealed

Fuel economy numbers for the 2018 Jeep Wrangler with the turbocharged 2.0-liter four-cylinder have finally been announced by the EPA. In the city, the two-door model gets 23 mpg, and the four-door Unlimited gets 22. Highway fuel economy for the two-door is 25 mpg and 24 for the four-door. Combined for the two-door and four-door is 24 and 22 respectively. These aren't Prius numbers, but they do make the four-cylinder Wrangler the most efficient version of the off-roader so far. The rest of the Wrangler range with V6 power gets 20 mpg combined, with the exception of the manual four-door, which gets 19. The most efficient V6 models in the city are the automatic models, which, regardless of length, get 18 mpg. On the highway, the best V6 is the manual two-door, which manages 25 mpg, and only loses 1 mpg in the city to the automatic. The question is, is the improved fuel economy worth the price premium of the four-cylinder? The automatic-only four-cylinder engine is an extra $1,000 over a V6 automatic, and $3,000 over a V6 manual. And when looking at the annual fuel cost estimates at fueleconomy.gov, you might only save $50 to $100 each year. The problem being that, while it's more efficient, it also demands premium fuel that the V6 doesn't. So it could be quite a while before the upfront cost is recouped. But if you want a Wrangler that's a little nicer to the planet, it's probably the way to go, plus you get an extra 35 pound-feet of torque over the V6, even if it means sacrificing nearly 20 horsepower. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.