Car Moon

General Motors is expanding a previous recall concerning a faulty rear-axle cross pin to include another 26,751 SUVs and trucks from the 2011 model year. The first recall was issued in late December and concerned approximately 1,260 Cadillac Escalades, Chevrolet Avalanche and Silverado 1500s, and GMC Sierra 1500s, all from the 2011MY. Read more »

We first reported on the new GMC Sierra All Terrain HD Concept in mid-December, but since then, General Motors has released a slew of new photos. The updated gallery includes the first photos of the design study's interior that has been spruced up with higher quality and more luxurious materials than the standard Sierra, upon which it is based.

Set to debut at next week's North American International Auto Show, GMC says the concept model is an exploration of heavy-duty truck capability combined with greater off-road versatility. Even if the Sierra All Terrain HD Concept doesn't make it as is onto the road, chances are that it will inspire a future production version. Full HD gallery after the break.

General Motors is recalling close to 100,000 vehicles in two separate campaigns. In a posting with the U.S. National Highway Traffic Safety Administration [NHTSA], GM said the first recall affects almost 96,000 Cadillac CTS sedans from the 2005-2007 model years over concerns that some of the vehicles have a condition in which repeated flexing of the passenger sensing system mat in the passenger seat may break the connection. The company said that if this occurs, the sensor may not detect the presence of a front seat passenger and will disable the air bag.

General Motors will be presenting an ultra-tough concept study based on the four-door 2011 GMC Sierra HD pickup truck at the rapidly approaching Detroit Motor Show in mid-January. The GMC Sierra All Terrain HD study is highlighted by its rough n' tough exterior design and enhanced all-road capability.

Shorter in overall length than production Sierra HD models, the concept boasts a unique five-foot, eight-inch Crew Cab/short box body configuration with the wheels pushed to corners of the vehicle.

It also features a wider, 73-inch (1,853 mm) track for greater stability and approximately 3 inches (76 mm) greater ground clearance for a total of 21.1 inches (536 mm) at the rockers and 11.8 inches (300 mm) at the skid plates.

GMC's Denali-badged vehicles - Denali meaning "the high one", referencing Mt. McKinley - have always been the Cadillacs of trucks (except for Escalades, which are actually Cadillac trucks).

Sitting somewhere just south of Premium Luxury, Denalis have always provided buyers with well-equipped, more luxurious versions of GMC's regular lineup. For 2011 the General will be releasing the Sierra Denali HD based on the GMC 2500 (3/4 ton) and 3500 (1-ton) Heavy Duty models.

About a month after the introduction of the 2011 Chevrolet Silverado, General Motors released details on the Chevy's twin and the firm's second rival to Ford's 2011 F-Series Super Duty, the 2011 GMC Sierra Heavy-Duty (HD) that will go on sale this summer.

Featuring the same mechanical tweaks as the latest Silverado, the GMC Sierra enters the 2011 model year with a new 6.6L Duramax turbo diesel, suspension and brake upgrades as well as a new Denali version.

We already knew about the 6.6-liter V8 diesel from the Silverado, but GM has now released output figures for the new engine that delivers 397 horsepower at 3,000 rpm and 765 lb.-ft. of torque (1,037 Nm) at 1,600 rpm.