woodgrain interior, luggage rack rails, body-color exterior door handle/mirror caps, and premium-cloth front bucket seats now standard on the 1LS trim, and chrome recovery hooks, two-speed transfer case, and 20-inch chrome wheels standard on its 1LZ 4WD models. In addition, the trailering package will feature the trailer brake controller as a standard on all trims. For the 2012 model year, trailer sway control and Hill Start Assist become standard on all trims, while the LTZ trim added a heated steering wheel as standard. Also, the LT1/2 options for the Suburban and SLE1/2 and SLT1/2 options on the Yukon XL were discontinued, leaving the Suburban with only an LS, LT, and LTZ trim and the Yukon XL with an SLE and SLT trim. In 2012, GMC celebrated its 100th anniversary by releasing a special edition of its Yukon XL, offering a Heritage Edition trim package. This was the final year that three colors, Graystone Metallic, Gold Mist Metallic, and Blue Topaz Metallic, would be offered, along with the all-season blackwall P265/65R18 tires. For the 2013 model year, two new colors were offered: Champagne Silver Metallic and Blue Ray Metallic (extra charge). Also new is Powertrain Grade Braking, normal mode. The 2013 model arrived at Chevrolet dealers in June 2012. For the 2014 model year, power-adjustable pedals, remote vehicle starter system, and rear parking assist along with rear vision camera and inside mirror with camera display became standard on the Suburban LS trims. Concord Metallic (which was supposed to be available for the 2013 MY) was added to the Suburban color offerings for the 2014 models. For the Yukon XL, a convenience package became standard on its SLE models, along with a new color, Deep Indigo Metallic. In February 2014, The Suburban came in second behind the Tahoe among the top-ranked large affordable SUVs by U.S News & World Report. This would be followed by being acknowledged as an award recipient in the large SUV category by JD Power and Associates in July 2014. The three-quarter-ton model's towing capacity is , being one of the best of any 4x4 SUV and unmatched by any other SUV. The towing capacity of the Suburban 2500 was unmatched, but also uncontested due to the discontinuation of the Ford Excursion in 2006. The three-quarter-ton model also has a GCVW of . The 2500 Suburban was originally sourced from Silao, Mexico from 2007 to 2008 but was