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GM cutting back on powertrain warranty citing lack of interest

Generally, when a manufacturer offers a long, high-mileage warranty, it's a sign that it stands behind its products. On top of that, it's generally a selling point for consumers, who can rest easy knowing that any catastrophic failures will be picked up by the manufacturer. Considering those facts, it does seem rather strange that General Motors is slashing the mileage warranty on model year 2016 vehicles from Chevrolet and GMC. Instead of offering consumers a 100,000-mile warranty, GM will now only offer a powertrain warranty up to 60,000 miles. The five-year warranty period, though, remains unchanged. GM will also cut the number of free services being offered to Chevy and GMC owners, as well as Buick drivers, from four to two. "Through research, we have determined that when purchasing a new vehicle, included maintenance and warranty rank low on the list of reasons why consumers consider a particular brand over another," explained a memo sent to dealers by Chevrolet VP Brian Sweeney and his GMC counterpart, Duncan Aldred, and obtained by Automotive News. "As a result, we have benchmarked our competitors, reviewed our current offerings and have concluded the following modifications to align closely with our customers' needs and expectations." While the move might seem odd, Sweeney and Aldred are right – according to Automotive News, Ford, Honda and Toyota each offer a five-year, 60,000-mile powertrain warranty. As for what the money saved by trimming the powertrain warranty will go towards, a GM spokesperson simply told AN that the company will "reinvest the savings we will realize into other retail programs," some of which have been requested by consumers. What are your thoughts? Would a 40,000-mile reduction in a new vehicle's powertrain really turn you off from buying one? Even if it matched its competitors? Is GM better off spending its money elsewhere? Have your say in Comments. Featured Gallery 2016 Chevrolet Equinox View 10 Photos News Source: Automotive News - sub. req.Image Credit: Chevrolet Chevrolet GM GMC Auto Repair Maintenance Ownership warranty

2020 Chevy Silverado, GMC Sierra recalled due to faulty brake component

General Motors is recalling 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 pickups to fix a defect in the trucks' brake system. Certain Silverado and Sierra pickups were produced with brake-caliper bolts that were not heat-treated. Without heat-treating, the bolts are weaker than they should be, and there is a risk that they could fail, which would affect the trucks' braking performance, possibly leading to a crash. In total, 20,352 vehicles are affected. Owners of affected trucks will be contacted by GM. Dealers will inspect the bolts and replace those that are defective. Related Video:      

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).