2014 Gmc Sierra 1500 Slt on 2040-cars

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2018 GMC Sierra 1500 Buying Guide | What you need to know about this pickup truck

The GMC Sierra is a work-capable truck that can be optioned like a luxury car. Variety and choice are the keywords for the Sierra, not to mention close rivals like the Ford F-150, Ram 1500, and Chevrolet's own Silverado 1500. A Sierra buyer has a seemingly infinite list of choices when it comes to specifying exactly what they need in their pickup. In terms of cab length alone, there are three choices – Regular, Double, and Crew – to go along with your pick of Short, Standard, or Long cargo bed. Engines range from a 4.3-liter V6, upward to a range-topping 6.2-liter V8 available in top trim levels like the SLT and Denali. The Sierra can be ordered with a choice of two- or four-wheel drive, and transmissions include both a 6- and 8-speed automatic, depending on your choice of powertrain and trim. Changes for the 2018 model year include the standard fitment of a rearview camera, along with a Tire Fill Alert system that lets the driver know when the correct pressure has been reached. A 7.0-inch touch-screen stereo system is also now standard equipment on base Sierras. Is the 2018 GMC Sierra Safe? The National Highway Traffic Safety Administration gives the 2018 GMC Sierra 1500 an overall crash-test rating of five stars. In front and side impact tests, the latest Sierra 1500 scored a five-star safety rating. A four-star rating was recorded in the Rollover resistance test – this rating applies to Sierra trucks fitted with either rear- or all-wheel drive. Because the Sierra is such a popular vehicle, it's worth noting that the NHTSA conducted crash tests on models fitted with both these drivetrains, and in two cab lengths. The Insurance Institute for Highway Safety, which provides ratings for new vehicles based on its own comprehensive crash tests, also tested two versions of the Sierra 1500. The extended cab model registered "good" ratings in all but one of the IIHS' crash tests. Driver side protection in the small overlap test was deemed "acceptable" – front passenger-side results were not rated. Headlight effectiveness was given an "acceptable" rating, dependent on trim level selected. Meanwhile, the ease of use of the Child Seat Anchors (LATCH) was deemed "acceptable" in the extended cab Sierra. Ratings dip slightly for the Sierra 1500 in standard cab format. Driver-side protection in the front small overlap test drops to "marginal," while the available LATCH system scored a "poor" for its ease of use.

GM planning to put its fullsize pickups on a big diet, too

General Motors is just coming off a complete redesign of the Chevrolet Silverado and GMC Sierra for 2014, but in the US fullsize truck market, there is no rest for the weary. According to Reuters, plans are already unfurling for both trucks to drop pounds from their curb weight over the next few years, but this will unlikely be able to keep pace with the 700-pound diet targeted for the next-generation Ford F-150, a truck expected to debut late next year.
The biggest weight reduction for these trucks might not be available until the next full redesign, which will likely happen around 2019, but the article says that smaller updates could shave pounds in the meantime. Two examples given include an "aluminum-intensive" version of the Silverado that could shed 250 pounds and debut around the same time as the lighter-weight, aluminum-bodied 2015 Ford, and there is also talk of reducing weight for driveline components such as axles and driveshafts. These changes are all part of an attempt to meet strict new fuel economy standards coming in 2017, targets which will get even tougher in 2025.

Fullsize GM SUVs have a problem that's making owners sick

Some fullsize SUV owners are getting sick, thanks to a buffeting and vibration problem in 2015 model year examples of the Chevy Tahoe and Suburban, Cadillac Escalade, and GMC Yukon. According to owners' complaints to the National Highway Traffic Safety Administration, the issue can vary from an annoying vibration inside the cabin to an experience so severe that it leads to dizziness and headaches. General Motors is aware of the complaints, but the fix isn't so simple. According to spokesperson Tom Wilkinson to Autoblog, the company "has been tracking this issue for a while." The problem has a fairly low incidence rate, but when it does occur the issue can be "uncomfortable and annoying for owners." There's no precise cause for the issue, Wilkinson claims, and in some cases, simply balancing the tires or changing the door seals can make it go away. However, not all of the fixes are so simple. AutoGuide dug deep into the problem and discovered a GM preliminary information bulletin that advised dealers to remove the headliner and to check the roof's bonds to the bows that go across the vehicle. However, that document included a note that the solution might not entirely eliminate things. According to AutoGuide, adding Dynamat insulation to the roof sometimes helped the problem. A GM spokesperson also told AutoGuide the company fixed the problem at the end of the 2015 model year, and didn't go into any more detail. This roof issue seems linked to some of the worst droning in these SUVs. According to one complaint from a 2015 Suburban owner to NHTSA: "Roof will not remain attached to the roof bows. This causes the buffeting similar to a window being down when all are up. The results span from annoying to painful." A 2015 Yukon owner claims to have another alleged cause for the problem in a NHTSA complaint from February 2015. This person brought their SUV to the dealer seven times over the course of four weeks for vibrations. The dealer replaced the driveshaft, suspension components, and more, but nothing worked. According to an engineer to the service adviser: "In an effort to prevent roll overs, they designed the frame and body mounts too stiff. There are 40 engineers working on issues, they have no solutions that work across the board." Wilkinson told Autoblog that GM is working with customers on an individual basis to rectify things. Since these are newer vehicles, dealers should also fix the problem under warranty.