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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.

Chevy reveals Colorado Z71 Trail Boss Edition

Chevrolet wants to make sure that if people are in the market for a midsize pickup, then there is a Colorado available to fit their desires. For businesses, there's the recently unveiled box delete package and for those looking for a customized look, there's the GearOn Edition. For the latest Z71 Trail Boss version, the automaker is going for folks planning to go off-road. As the name suggests, all Trail Boss versions of the Colorado start with the already off-road-inlined Z71 trim level, including its 305-horsepower, 3.6-liter V6 and six-speed automatic, and the package can be added to practically any body variant: extended or crew cab, long or short bed and rear- or four-wheel drive. To set things apart, there's a locking rear differential, front tow hooks, darkened 17-inch wheels that are shod with Goodyear Wrangler DuraTrac tires and on the four-wheel drive models, a transfer case shield. For some extra style, the Colorado Trail Boss wears black parts for the fender flares, side steps and Bowtie badges. The bed also gets a spray-on liner and a few parts from the GearOn accessory catalog, including the tie-down rings, load bar and cargo divider. The Trail Boss goes on sale in the spring, and to add all of this equipment to a Colorado, it costs $3,320 in addition to the price of any Z71 trim model. Related Video: Chevy Colorado Z71 Trail Boss Edition: On Point, Off Road When adventure calls, the Trail Boss has your back 2015-03-06 CLEVELAND – For those who want to blaze their own trails, Chevrolet introduces the 2015 Colorado Z71 Trail Boss edition today at the Cleveland Auto Show. The Trail Boss combines the capability of Chevrolet's Z71 off-road truck suspension package with more aggressive tires and additional appearance enhancements. It is offered in extended and crew cab configurations, with a choice of a long or short cargo bed and available 4WD. The Trail Boss goes on sale this spring with a starting price of $28,505 plus the package price of $3,320. "The Chevrolet Colorado Z71 Trail Boss Edition is equally at home blazing an urban trail or following one to a favorite remote campground," said Tony Johnson, Colorado marketing manager.

Chevy Corvette gets Valet Mode with Performance Data Recorder [w/video]

For the 2015-model-year, Chevrolet introduces Valet Mode for the Corvette, an enhancement to the Performance Data Recorder (PDR) already available and to your peace of mind. The PDR already captures 720p HD video with a windshield-mounted camera, records interior audio with a cabin microphone and gathers telemetry data using GPS, saving the data to an SD card in the glovebox. You can then watch your track-day antics with various information overlays on the center console screen.
Valet Mode will let you hit 'Replay' when your car gets pulled up front smelling vaguely of fricasseed clutch. Turned on by entering a four-digit code, it also locks the interior storage spaces and turns off the infotainment system. It can't be turned off until the code is re-entered. There's a press release below with more information as well as a video that explains how it works, with the obligatory dig at the 'Vette's biggest foe.