Second generation (Z62; 2011)
On 31 March 2010, Infiniti debuted the 2011 QX56 at the New York International Auto Show. No longer sharing a platform with the F-Alpha-based Nissan Armada, the QX56 shares the same body with the Y62 Patrol, which also marked the first time that a Patrol-based vehicle had been sold in North America since 1969.[9]
Development of the Z62 QX56 began in 2006 following the concurrent Y62 Patrol program (since 2003), after Nissan management voted to move QX56 production back to Japan and separate from the Nissan Armada, after the JA60 QX56's production run concluded. By 2007, a styling proposal by Shinya Momokawa and Akihiro Sugita was approved by the board and frozen for production.
Compared to its predecessor, the Z62 QX56 is 1.4 inches longer and 1.1 inches wider. Most of the frame's body mass is made from high-tensile steel, but the QX manages to be more rugged with its body-on-frame concept. Both the front and rear feature independent suspension double wishbone suspensions combined with the new Hydraulic Body Motion Control System. The QX comes standard with 20-inch wheels, with 22-inch wheels available. 4WD versions have a four-setting terrain control which includes rock, snow, sand and dirt modes. This generation abandoned the disguised rear door handle design that was installed in the C-pillar.
The QX56 features a new 5.6-liter VK56VD V8 engine with direct injection and VVEL variable valve timing, also found in the Patrol, which is rated at 400 hp and 413 lb·ft of torque. The more powerful engine helps give the QX56 an increased towing capacity of up to 8500 lb. The engine is paired to a seven-speed sequential-shift automatic transmission with an all-new 4WD system.
The QX56's interior design includes a number of the standard and optional luxury features in the 2010 Infiniti M, such as semi-aniline leather seats; tri-zone climate control; a Bose 2-channel, 13-speaker Premium Audio surround sound stereo system with hard drive memory storage; hard-drive based navigation system; an Around View Monitor system; and Infiniti Intuitive Park Assist, a parking assist feature which uses the around view monitor. Curtain Vent, new for this generation, directs air flow from the air conditioning system from above each side window down towards the floor.
The QX also features the updated Infiniti hard drive based navigation system with an eight-inch VGA display. Infiniti keyless SmartAccess with an "Intelligent Remote" key is standard along with 8 airbags including knee airbags for driver and front passenger as well as second-row side torso airbags, the Adaptive Front-lighting System (AFS) is standard, while the Pre-Collision System (PCS) and lane departure warning system are available options.
Corporate renaming (2013)
In 2013 for the 2014 model year, Infiniti renamed their entire product line, so the QX56 was rebadged as the QX80.[10]
First facelift (2015)
The 2015 model year QX80 arrived at the 2014 New York International Auto Show with a mid-generational refresh, receiving new headlights and taillights with new front and rear fascias, restyled bi-xenon HID projector headlamps with LED daytime running lights, front LED turn signals (located on front bumper with new LED fog lights), new wheel designs (including a new 22-inch forged-aluminum version), three new exterior colors, and a number of interior refinements. The new flagship trim level for 2015 is the QX80 Limited, which features all the QX80 packages and optional equipment available on other trim levels as standard, as well as standard Intelligent All Wheel Drive (AWD), and restyled LED clear lens taillights instead of the LED red lens taillights. However, the Limited trim level is not available with the second row bench seating which increases the passenger capability from 7 seats to 8 seats. Naoyuki Ohkoshi was responsible for exterior design work on the facelift QX80 in 2012.
As of 2017, the QX80 was available in the United States (including all US territories), Canada, Mexico, China (including Macau and Hong Kong), the GCC (Arab) markets, Russia, Ukraine, Armenia, Georgia, South Korea, Dominican Republic, Guam, Panama, Australia, New Zealand, Indonesia, Malaysia, Singapore, and Vietnam. A RHD version was available in some markets as part of the facelift in late 2014.