standard. In 2003, for the 2004 model year, the GX 470's transmission was upgraded to a sealed unit with no dipstick. An optional Kinetic Dynamic Suspension System (KDSS) became available as a late-year addition. KDSS freed and adjusted the vehicle's stabilizer bars for greater articulation allowing the wheels to move with less restriction over uneven terrain, and used front and rear hydraulic pressure-sensing valves and larger stabilizer bars to reduce body roll during on-road conditions. Safety upgrades for 2004 included a roll-sensing feature for the side curtain airbags, a tire pressure monitoring system, and an optional rear backup camera system. In 2004, for the 2005 model year, the GX 470's engine gained with the addition of VVT-i for a total of . This allowed the SUV to be certified as an Ultra-Low Emission Vehicle II (ULEV II) in the U.S. Other upgrades included an enhanced navigation system, Bluetooth compatibility, and more voice commands. A Sport model joined the lineup, including the Kinetic Dynamic Suspension System and different styling such as smoked bezel headlamps, added chrome trim, and black birdseye maple wood. In 2005, for the 2006 model year, changes in SAE engine testing procedures resulted in a slight drop in the amount of stated power for the V8 to , and Lexus Link telematics was offered in North America. For 2007, the GX 470 was largely unchanged, with upgrades for cabin electronics including a new generation navigation system, auxiliary input jack for devices like an iPod, DVD video playback when parked, and larger optional rear entertainment video screen. Finally, in 2007, for the 2008 model year, the GX 470 received styling updates, including a dark metallic grille, liquid graphite wheels, added exterior and interior chrome, revised turn signal lights, and added wood and body color options. The Lexus GX has won various awards including "Four Wheeler of the Year" in 2003 and 2004 from Four Wheeler Magazine, and Automobile Magazine All-Star for 2003 in the Mid-Size Sport-Utility category. J.D. Power and Associates named the GX 470 the highest ranked premium luxury SUV in initial quality in 2005, and Kelley Blue Book gave the GX 470 its Best Resale Value Award in 2006. Second generation (J150; 2009) The GX 460 debuted in China at the Guangzhou International Automobile Exhibition in November 2009. The redesigned model continued with body-on-frame construction, full-time four-wheel drive, an electronically controlled hi-lo transfer case, and a Torsen