Thursday, February 27, 2014

GMC Sierra Ranks at Top of JD Power's Dependabilty Study

The GMC Sierra 1500 and 2500/3500 Heavy-Duty pickup trucks have won their respective categories in the J.D. Power and Associates' 2014 Vehicle Dependability Study. The half-ton GMC ranked highest in the Light Duty Pickup category, with the Toyota Tundra and Chevrolet Avalanche finishing in the No. 2 and 3 positions. In the heavy-duty segment, the GMC Sierra HD was the winner, with the Chevy Silverado HD finishing in the second spot. The Ford F-250/F-350 Super Duty came in third.

The J.D. Power's Vehicle Dependability study is based on a survey of 41,000 respondents who identify incidents and problems with their 3-year-old vehicles (2011 model year), sharing their experiences. The fact that these are ratings for older pickups explains why, in the Midsize Pickup category, the Ford Ranger and GMC Canyon finished second and third respectively. The Honda Ridgeline ranked highest.

For more information about how the other brands finished, click here.

Tuesday, February 25, 2014

2015 GMC and Chevrolet Big SUVs Get Better Gas Mileage

Yukon, Tahoe and Suburban models achieve 
nearly 10 percent gain on highway

DETROIT – The new 2015 full-size SUVs from Chevrolet and GMC go farther on a tank of gas than outgoing models, raising highway fuel economy by nearly 10 percent.

The Chevrolet Tahoe and Suburban and GMC Yukon and Yukon XL with the standard 5.3L engine get an EPA-estimated 16 mpg in the city and 23 mpg on the highway with two-wheel drive – a nearly 10 percent increase in highway mileage over the previous models and 7 percent greater city mileage.

The Yukon Denali and Yukon XL Denali models feature an exclusive 6.2L V-8 rated at 420 horsepower (313 kW) and 460 lb-ft of torque (623 Nm). No other full-size SUV offers as much power and torque. Denali models offer 15 city/21 highway in two-wheel drive models.

About Chevrolet

Founded in 1911 in Detroit, Chevrolet is one of the world's largest car brands, doing business in more than 140 countries and selling more than 4.9 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature spirited performance, expressive design, and high quality. More information on Chevrolet models can be found at

About GMC

GMC has manufactured trucks since 1902, and is one of the industry's healthiest brands. Innovation and engineering excellence is built into all GMC vehicles and the brand is evolving to offer more fuel-efficient trucks and crossovers, including the Terrain small SUV and Acadia crossover. GMC is the only manufacturer to offer three full-size hybrid trucks with the Yukon, Yukon Denali SUVs and the Sierra pickup. The Sierra Heavy Duty pickups are the most capable and powerful trucks in the market. Details on all GMC models are available at, on Twitter at @thisisgmc or at

Sunday, February 23, 2014

2014 GMC Sierra 3500HD

 We built the 2014 GMC Sierra 3500HD to deliver everything you expect from a heavy-duty truck—and then we exceeded those expectations with the most powerful Sierra ever. You need to rely on your truck to deliver capable performance every time, without fail. So when we engineered the Sierra 3500HD, we pushed it to the limits so that it will deliver the kind of capability you demand.

Features based on 1SA model unless otherwise noted.
Safety and Security
  • Frontal air bags**
  • StabiliTrak stability control system
  • Trailer Sway Control (SRW)
  • Daytime running lamps and automatic lamp control
  • Tire Pressure Monitoring System*** 
(vehicles under 10,001 lbs GVWR5)
  • Reclining front 40/20/40 split-bench seat
  • Rear bench fold-up seat (Double and Crew Cab)
  • Driver Information Center
  • Air conditioning
  • 2 power outlets
  • Tilt-wheel adjustable steering column
  • Front-passenger assist handle
  • AM/FM stereo with digital clock
  • Cruise control
Engine Availability
  • Vortec 6.0L V8 with up to 360 horsepower and E85 FlexFuel6 capability on pickup models
  • Duramax Diesel 6.6L Turbo V8 with 397 horsepower, 
765 lb-ft of torque; B20-diesel compatible
  • 6-speed automatic transmission
  • 4-wheel disc antilock brake system
  • Independent front and multileaf rear suspension
  • Heavy-duty battery with rundown protection and retained accessory power
  • External auxiliary transmission oil cooler
  • External engine oil cooler
  • Intermittent windshield wipers
  • Foldaway rearview mirrors
  • All-season tires
  • 8-lug steel wheels with center caps
  • Front frame-mounted recovery hooks
  • Front and rear chrome bumpers
  • Dual halogen headlamps
  • Dual cargo area lamps
  • Spare tire lock

Options are available on certain models only. See your Ordering Guide for details.
  • Side-impact and head curtain side-impact (front outboard) air bags**
  • Seating options: power, buckets, leather seating surfaces, heated and cooled
  • Power-adjustable pedals
  • Power rear sliding window
  • Audio options: 6-disc CD changer, Navigation System,7 Bose® sound system, DVD entertainment system, MP3 player, USB port,8 
SiriusXM Satellite Radio9 with 3-month trial
  • OnStar® 6-month Directions & Connections Plan10 with Turn-
by-Turn Navigation
  • NavTraffic11
  • Bluetooth® wireless technology for select phones12
  • Rear-Vision Camera System
  • Allison® 1000 6-speed automatic transmission (with Duramax Diesel 6.6L Turbo V8)
  • Z71 Suspension
  • Electronic shift 4WD
  • Automatic locking rear differential
  • Trailering packages
  • Outside mirror options: camper, power, heated, curb-tilt
  • Remote Vehicle Starter System
  • EZ-Lift and Lower Tailgate
  • Ultrasonic Rear Parking Assist
  • Skid Plate Package
  • Snow Plow Prep Package
  • Pickup Box Delete

Friday, February 21, 2014

Could the Next GM Pickups Have More Aluminum?

GM is in the process of securing aluminum from major suppliers, presumably to shore up a supply of material for its next-generation high-volume pickup trucks — which GM has neither confirmed nor denied. This could mean it will follow Ford's lead, switching to a more extensive use of aluminum body panels as seen on the 2015 Ford F-150, which debuted at the 2014 North American International Auto Show in Detroit.

According to the Wall Street Journal (subscription required), GM will be using more aluminum in its pickups to help increase fuel economy, and also implied this was in response to the coming Ford half-ton. From our vantage point, given how far out these truck programs are planned out, that's highly unlikely. GM will offer the only three-truck strategy (midsize, half-ton and heavy duty) when its two smaller pickups — the Chevrolet Colorado and GMC Canyon — debut later this year.
GM engineers told us at the debut of the Chevy Silverado that they used high-strength steel and aluminum to save about 200 pounds on the new 2014 pickup but in many cases added that weight back in stronger materials and more features and content, keeping the new truck the same weight as the outgoing pickup. Having a smaller pickup for the truck market is another way of improving the overall corporate average fuel economy targets. On the other hand, Ram decided to go with the EcoDiesel powertrain and invest in the ZF eight-speed transmission across its lineup.

Whether Ford will have further impact on the aluminum industry as it relates to the auto industry (or aerospace and big-rig trucks for that matter) remains to be seen.


Wednesday, February 19, 2014

GM Leads Automakers in Dependability Awards

Eight segment award recipients cover Chevrolet, Buick, GMC and Cadillac brands

  • ·         GM brands place 13 models among Top 3 in their segments 
  • ·         All GM brands score at or above industry average

DETROIT – General Motors has more segment award recipients than any other automaker in the J.D Power 2014 Vehicle Dependability Study, doubling last year’s segment awards from four to eight across its four brands.
The 2014 study tracks 2011 model year vehicles in the third year of ownership.
For Chevrolet, the Volt received this highest dependability award in the Compact Car segment in its launch year. The Camaro ranked highest in its segment for a second year in a row, after also receiving the award as a launch vehicle last year. 
GM earned the top two spots in the Large Heavy Duty Pickup segment for dependability with the GMC Sierra HD receiving the segment award and Chevrolet Silverado HD ranking second. This marks the second year in a row that GMC Sierra HD ranks highest in vehicle dependability.
“Dependability is one of the top purchase reasons for a car or truck and it is key to customer loyalty,” said Alicia Boler-Davis, senior vice president GM Global Customer Experience and Product Quality. “Receiving more segment awards for our cars and trucks than any other automaker reflects our commitment to provide customers with the best overall experience the industry.” 

Brand Highlights

·         Volt – Segment Award, Compact Car
  • Camaro – Segment Award, Midsize Sporty Car

  • ·         Tahoe – Ranked Second, Large CUV
  • ·         Silverado HD – Ranked Second, Large Heavy Duty Pickup
  • ·         Avalanche – Ranked Third, Large Light Duty Pickup


  • ·         Escalade – Segment Award, Large Premium CUV
  • ·         DTS – Segment Award, Large Premium Car


  • ·         Lucerne – Segment Award, Large Car
  • ·         LaCrosse – Ranked Second – Midsize Car


  • ·         Sierra LD – Segment Award, Large Light Duty Pickup
  • ·         Sierra HD – Segment Award, Large Heavy Duty Pickup
  • ·         Yukon – Segment Award, Large CUV
  • ·         Canyon – Ranked Third, Midsize Pickup

General Motors Co. (NYSE:GM, TSX: GMM) and its partners produce vehicles in 30 countries, and the company has leadership positions in the world's largest and fastest-growing automotive markets. GM, its subsidiaries and joint venture entities sell vehicles under the Chevrolet, Cadillac, Baojun, Buick, GMC, Holden, Jiefang, Opel, Vauxhall and Wuling brands. More information on the company and its subsidiaries, including OnStar, a global leader in vehicle safety, security and information services, can be found at  

Sunday, February 9, 2014

GMC Pickups 101: What’s the Differential?

What an axle ratio means and why picking the right one is important

Editor’s Note: For more than 100 years, GMC pickups have hauled the loads that have helped keep America running. Beneath them have been rear axles with different gear ratios. What do numbers like 4.10:1 mean? This second in an occasional series of “GMC Pickups 101” features explains rear axle ratios.

DETROIT – Technologies like advanced turbodiesel V-8 engines or hydroformed steel frames have advanced the 2013 GMC Sierra to unprecedented levels of capability for fullsize pickups. In just the decade since the 2003 model debuted, maximum towing capacity for a Sierra HD has risen 43 percent, from 16,100 pounds to an industry-leading 23,100 pounds.

Getting that towing force from the engine to each rear wheel is the task of a set of gears located in the center of the truck’s rear axle known as the differential. The ratio of the sizes of those gears is represented by the diameter of the gear that drives the wheels in relation to the gear from the driveshaft.  So, a 3.08:1 ratio indicates the drive gear has 3.08 times as many teeth as the gear on the driveshaft.

Using different diameter gears within the differential affects both towing ability and fuel efficiency. Since pickup owners have varying needs and preferences, GMC addresses different requirements by offering various rear axle gear ratios.

“A numerically lower axle ratio keeps engine speeds lower for better fuel economy, while higher ratios generally yield higher towing capacities and quicker launches from a stop,” said Greg Martuch, energy and powertrain engineer for the GMC Sierra.

Four different ratios are available across the Sierra 1500 ½-ton pickup lineup: from 3.08:1 to 3.73:1. Available ratios vary by cab type, engine and drive type. Sierra HD, including ¾-ton and 1-ton models, uses rear axle ratios of 3.73:1 and 4.10:1.

Each ratio is decided after months and years of testing factors such as acceleration from a stop; performance on a grade; transmission behavior; fuel economy; towing, and thermal management. Keeping engine speeds down allows a vehicle’s cooling to be more effective.

How much of a difference does the choice of axle make? A 2013 Sierra 2500HD with a 6.0L V-8 and four-wheel drive can tow a maximum of 9,900 pounds with a 3.73:1 ratio or 14,400 pounds with a 4.10:1 ratio. Martuch estimates the fuel economy difference at highway speeds would be around 0.2-0.3 mpg between those two ratios, though reduced engine noise is also a benefit of maintaining lower engine speeds with the more-efficient ratio.

Martuch recommends customers consider their everyday needs. “The higher the combined weight of a truck and trailer, the harder the vehicle needs to work. If a customer is going to tow a small boat just a few times a year, a Sierra 1500 with a lower ratio would capably handle the occasional towing duty while delivering better efficiency the other 95 percent of the time. But for someone towing construction equipment every day, I would definitely recommend an HD pickup with a 4.10 axle and external engine and transmission oil coolers.”

GMC has manufactured trucks since 1902, and is one of the industry's healthiest brands. Innovation and engineering excellence is built into all GMC vehicles and the brand is evolving to offer more fuel-efficient trucks and crossovers, including the Terrain small SUV and Acadia crossover.  GMC is the only manufacturer to offer three full-size hybrid trucks with the Yukon, Yukon Denali SUVs and the Sierra pickup. The Sierra Heavy Duty pickups are the most capable and powerful trucks in the market. Details on all GMC models are available at, on Twitter at @thisisgmc or at

Friday, February 7, 2014

GMC Cutaway with 16' Supreme Van Body

GMC Iner-City Cutaway Van

Featuring the Supreme SIGNATURE Body

Standard Features
  • Premium Roll-up Door
We all know the greatest threat to door longevity and appearance: water penetration. That's why the Signature Body door is equipped to combat the brutal effects of time, weather, and moisture.
  • LED Exterior Lights
Now standard on the Signature Body, LEDs draw less energy from the chassis and last for years, so you can save on maintenance and reduce downtime while working in a more environmentally friendly manner.
  • Sealed Wire Harness
Used by national leasing fleets for years, sealed wire harnesses are now standard and are designed to integrate with the LED lighting system. The result: a reduction in electrical repairs and maintenance.

The Supreme Iner-City® Cutaway Van - Featuring the all-new SIGNATURE Body

Meet the most convenient, most resilient cutaway van on the road today: the new Supreme Signature Body. We've redesigned and retooled our standard cutaway van, then tested it again and again and again, to give you a versatile body unparalleled in its rugged dependability.

With Supreme's Signature Body, we've taken some bold steps to surpass your expectations. We've turned "options" into standard features. Added strength to combat potential damage. Increased cubic payload so you can carry more and get your job done more efficiently.

When it comes to a cutaway van, Supreme is where it all comes together.

Supreme brings together the best of the best with our all-new Signature Body. And we set a new standard by backing it all with our comprehensive 3-year/36,000-mile warranty to cover repairs and replacement in the event a part is found to be defective. Additional 5-year warranties covering the roof, wall and floor structures let you rest assured that your Signature Body is built to last, from top to bottom. For additional information, please review our warranty policy.

Feature details from

Wednesday, February 5, 2014

2015 GMC Sierra 2500/3500 HD

Mark Williams, of, takes a first look at the 2015 GMC Sierra 2500/3500 HD

Monday, February 3, 2014

GMC Heads to the 2014 Pro Bowl and Super Bowl XLVIII

Brand hosts military, families, fans and MVPs at NFL season’s pinnacle

DETROIT – The National Football League postseason is in full swing and so is GMC’s support as the Official Vehicle of the NFL. Along with providing vehicles in and around New York City for the Super Bowl XLVIII, GMC will host U.S. military and their families for the 2014 Pro Bowl, where each of the game’s most valuable players will be awarded a new GMC vehicle.
2014 NFL Pro Bowl
In the weeks leading up to the Super Bowl game, two teams of NFL all-stars will face off on January 26, on the island of Oahu, Hawaii for the 2014 NFL Pro Bowl. GMC will have a strong presence around the All-Star Block Party and Official Pro Bowl Tailgate party, and will provide transportation and tickets to several U.S. military families to attend the practice and Pro Bowl game.
In addition, one special soldier will be part of the award ceremony in the Pro Bowl MVP giveaway, where for the first time, a GMC vehicle will be awarded to the game’s most valuable offensive and defensive players. The winners will take the keys to an all-new 2015 GMC Yukon and 2014 GMC Sierra Denali.
Super Bowl XLVIII
Even before the game kicks off, there will be plenty of action on Super Bowl Boulevard Engineered by GMC. In Times Square from January 29 through February 1, there will be concerts, football skills challenges, and fans can check out the GMC display where they can get their picture on the EA SPORTS Madden NFL 25 cover and take a photo with the Super Bowl MVP trophy.
Additionally, fans can take a wild ride down Broadway on the Toboggan Run Engineered by GMC. Standing 58 feet tall and stretching 180 feet down Broadway between 40th and 41st Streets, the toboggan run will cost $5 per ride with proceeds benefitting a New York charity.
The entire GMC family of vehicles will be displayed along Super Bowl Boulevard, including the all-new 2015 Yukon and 2014 Sierra Denali.
GMC continues its partnership with the NFL and the fan-elected Never Say Never Moments award presented at the “3rd Annual NFL Honors” awards show airing nationally on February 1. GMC is also a sponsor of the NFL Characters Unite public service program and NFL Total Access.

GMC has manufactured trucks since 1902, with innovation and engineering excellence built into all GMC vehicles.  The brand is evolving to offer more fuel-efficient trucks and crossovers, including the Terrain small SUV and Acadia crossover. GMC’s highest-volume vehicle, the Sierra pickup, is the most powerful light duty pickup on the market, and the first full-size pickup to receive the highest possible five-star Overall Vehicle Score for safety since the National Highway Traffic Safety Administration changed its New Car Assessment Program for the 2011 model year. Details on all GMC models are available at, on Twitter at @thisisgmc or at