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GM warning 800,000 owners that their cars may need oil changes more frequently than they say

The days of changing your engine oil every 3,000 miles are long gone thanks to most cars having automatic oil monitoring systems, but about 800,000 General Motors vehicles apparently have incorrect monitoring software that is leading to premature engine component wear. According to Autoweek, certain 2010-2012 Buick LaCrosse, Regal, Chevrolet Equinox and GMC Terrain models equipped with 2.4-liter four-cylinder engines could be going too long in between oil changes resulting in a higher-than-normal number of warranty claims for the engine's balance chain. The balance chain links the balance shaft to the crankshaft, and a worn one can produce higher noise levels.
As a fix, GM dealers will be reprogramming the software for the monitors in an effort to reduce the interval between oil changes, which varies based on driving habits and conditions. Through February 2015, the software update will be done at no cost to vehicle owners, but since this is not a recall, after that point, it will be up to the discretion of dealers as to whether or not they will charge for the service. What isn't immediately clear is whether GM plans on giving assistance to out-of-warranty customers who are experiencing engine issues from the worn chain.

Opel Cascada close to getting green light for US

For a company with a long tradition of grand touring convertibles, it's almost unseemly that General Motors doesn't offer a properly relaxed four-seat convertible in North America. There's the Chevrolet Camaro, of course, but it's not big on rear-seat space and it doesn't offer that sort of serene demeanor that many open-air buyers crave. We're thinking of something more refined and, dare we say, elegant. Something a bit closer to the Opel Cascada.
The General's front-wheel drive convertible went on sale in Europe this year, and while it seemed like a natural fit for its Buick brand in America, it's never been sold here. That may be about to change, however. Back in June, CEO Dan Akerson hinted he'd like to see the Cascada available in the US, and now there's word from Edmunds that importation "could happen soon." That's according to an unnamed insider at the company.
It's almost unseemly that GM doesn't offer a relaxed four-seat convertible.

How to hack a Buick Regal with CarKnow

If you own an Apple iPhone or Android device, perhaps you've been tempted to jailbreak or root it. This process gives you access to the the software's code, and can be used to make minor or drastic changes to its operating system. CarKnow, a company in Boston, is working applying a similar concept to the automobile.
Translogic recently took a look inside CarKnow to see just how it can tweak the computers inside a car and what sort of things can be done. As our transportation tech sister site explains, CarKnow basically created a digital duplicate of their Buick Regal in the cloud, while harvesting data generated to create custom apps and infiltrate the deepest function of their test car.
And before you freak out about people maliciously taking over your car, CarKnow's founder, Josh Siegel, stresses that it isn't quite so easy as driving up alongside someone. Take a look at the full video below to see just what it's like to jailbreak a car.